diff --git a/src/commonlib/include/commonlib/loglevel.h b/src/commonlib/include/commonlib/loglevel.h
index 3020909..7992178 100644
--- a/src/commonlib/include/commonlib/loglevel.h
+++ b/src/commonlib/include/commonlib/loglevel.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef LOGLEVEL_H
 #define LOGLEVEL_H
diff --git a/src/commonlib/include/commonlib/sd_mmc_ctrlr.h b/src/commonlib/include/commonlib/sd_mmc_ctrlr.h
index d681d2e..a0b2e2b 100644
--- a/src/commonlib/include/commonlib/sd_mmc_ctrlr.h
+++ b/src/commonlib/include/commonlib/sd_mmc_ctrlr.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 /*
  * Controller independent definitions
  */
diff --git a/src/commonlib/include/commonlib/sdhci.h b/src/commonlib/include/commonlib/sdhci.h
index 2ce3e8a..cd76634 100644
--- a/src/commonlib/include/commonlib/sdhci.h
+++ b/src/commonlib/include/commonlib/sdhci.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 /*
  * SD host controller specific definitions
  */
diff --git a/src/commonlib/include/commonlib/storage.h b/src/commonlib/include/commonlib/storage.h
index ce5f93a..673ae9f 100644
--- a/src/commonlib/include/commonlib/storage.h
+++ b/src/commonlib/include/commonlib/storage.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef __COMMONLIB_STORAGE_H__
 #define __COMMONLIB_STORAGE_H__
diff --git a/src/commonlib/storage/bouncebuf.c b/src/commonlib/storage/bouncebuf.c
index 722a6c8..506c723 100644
--- a/src/commonlib/storage/bouncebuf.c
+++ b/src/commonlib/storage/bouncebuf.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 /*
  * Generic bounce buffer implementation
  */
diff --git a/src/commonlib/storage/bouncebuf.h b/src/commonlib/storage/bouncebuf.h
index 615f73e..bdfb9f8 100644
--- a/src/commonlib/storage/bouncebuf.h
+++ b/src/commonlib/storage/bouncebuf.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 /*
  * Generic bounce buffer implementation
  */
diff --git a/src/commonlib/storage/mmc.c b/src/commonlib/storage/mmc.c
index d822865..391b45c 100644
--- a/src/commonlib/storage/mmc.c
+++ b/src/commonlib/storage/mmc.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 /*
  * MultiMediaCard (MMC) and eMMC specific support code
  * This code is controller independent
diff --git a/src/commonlib/storage/mmc.h b/src/commonlib/storage/mmc.h
index 621c541..aa1af0a 100644
--- a/src/commonlib/storage/mmc.h
+++ b/src/commonlib/storage/mmc.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef __COMMONLIB_STORAGE_MMC_H__
 #define __COMMONLIB_STORAGE_MMC_H__
diff --git a/src/commonlib/storage/pci_sdhci.c b/src/commonlib/storage/pci_sdhci.c
index fbc73a8..839fb34 100644
--- a/src/commonlib/storage/pci_sdhci.c
+++ b/src/commonlib/storage/pci_sdhci.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but without any warranty; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <commonlib/sdhci.h>
 #include <device/pci.h>
diff --git a/src/commonlib/storage/sd.c b/src/commonlib/storage/sd.c
index a925088..5e74cd2 100644
--- a/src/commonlib/storage/sd.c
+++ b/src/commonlib/storage/sd.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 /*
  * Secure Digital (SD) card specific support code
  * This code is controller independent
diff --git a/src/commonlib/storage/sd_mmc.c b/src/commonlib/storage/sd_mmc.c
index 8c0c1f7..07e8af8 100644
--- a/src/commonlib/storage/sd_mmc.c
+++ b/src/commonlib/storage/sd_mmc.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 /*
  * MultiMediaCard (MMC), eMMC and Secure Digital (SD) common initialization
  * code which brings the card into the standby state.  This code is controller
diff --git a/src/commonlib/storage/sd_mmc.h b/src/commonlib/storage/sd_mmc.h
index 9ad2a9e..72e3ec3 100644
--- a/src/commonlib/storage/sd_mmc.h
+++ b/src/commonlib/storage/sd_mmc.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef __COMMONLIB_STORAGE_SD_MMC_H__
 #define __COMMONLIB_STORAGE_SD_MMC_H__
diff --git a/src/commonlib/storage/sdhci.c b/src/commonlib/storage/sdhci.c
index 231224c..feef228 100644
--- a/src/commonlib/storage/sdhci.c
+++ b/src/commonlib/storage/sdhci.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 /*
  * Secure Digital (SD) Host Controller interface specific code
  */
diff --git a/src/commonlib/storage/sdhci.h b/src/commonlib/storage/sdhci.h
index ff0af13..61b2e01 100644
--- a/src/commonlib/storage/sdhci.h
+++ b/src/commonlib/storage/sdhci.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 #ifndef __COMMONLIB_STORAGE_SDHCI_H__
 #define __COMMONLIB_STORAGE_SDHCI_H__
 
diff --git a/src/commonlib/storage/sdhci_adma.c b/src/commonlib/storage/sdhci_adma.c
index 285ac0f..786a57c 100644
--- a/src/commonlib/storage/sdhci_adma.c
+++ b/src/commonlib/storage/sdhci_adma.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 /*
  * Secure Digital (SD) Host Controller interface DMA support code
  */
diff --git a/src/commonlib/storage/sdhci_display.c b/src/commonlib/storage/sdhci_display.c
index 6dad33c..4d0300e 100644
--- a/src/commonlib/storage/sdhci_display.c
+++ b/src/commonlib/storage/sdhci_display.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 /*
  * Secure Digital (SD) Host Controller interface specific code
  */
diff --git a/src/commonlib/storage/storage.c b/src/commonlib/storage/storage.c
index 050d8bf..f5d1517 100644
--- a/src/commonlib/storage/storage.c
+++ b/src/commonlib/storage/storage.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 /*
  * MultiMediaCard (MMC), eMMC and Secure Digital (SD) common code which
  * transitions the card from the standby state to the transfer state.  The
diff --git a/src/commonlib/storage/storage.h b/src/commonlib/storage/storage.h
index 67e21a4..28f684d 100644
--- a/src/commonlib/storage/storage.h
+++ b/src/commonlib/storage/storage.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef __COMMONLIB_STORAGE_STORAGE_H__
 #define __COMMONLIB_STORAGE_STORAGE_H__
diff --git a/src/commonlib/storage/storage_erase.c b/src/commonlib/storage/storage_erase.c
index 2425b76..4410687 100644
--- a/src/commonlib/storage/storage_erase.c
+++ b/src/commonlib/storage/storage_erase.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 /*
  * MultiMediaCard (MMC), eMMC and Secure Digital (SD) erase support code.
  * This code is controller independent.
diff --git a/src/commonlib/storage/storage_write.c b/src/commonlib/storage/storage_write.c
index f5af6dc..216c217 100644
--- a/src/commonlib/storage/storage_write.c
+++ b/src/commonlib/storage/storage_write.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 /*
  * MultiMediaCard (MMC), eMMC and Secure Digital (SD) write support code.
  * This code is controller independent.
diff --git a/src/cpu/amd/agesa/family15tn/udelay.c b/src/cpu/amd/agesa/family15tn/udelay.c
index f168356..c11d1e6 100644
--- a/src/cpu/amd/agesa/family15tn/udelay.c
+++ b/src/cpu/amd/agesa/family15tn/udelay.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /*
  * udelay() implementation for SMI handlers
diff --git a/src/cpu/amd/pi/00630F01/udelay.c b/src/cpu/amd/pi/00630F01/udelay.c
index c70a8c1..3a92dfe 100644
--- a/src/cpu/amd/pi/00630F01/udelay.c
+++ b/src/cpu/amd/pi/00630F01/udelay.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /*
  * udelay() implementation for SMI handlers
diff --git a/src/cpu/intel/slot_1/l2_cache.c b/src/cpu/intel/slot_1/l2_cache.c
index ab78376..518d581 100644
--- a/src/cpu/intel/slot_1/l2_cache.c
+++ b/src/cpu/intel/slot_1/l2_cache.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /*
  * Intel Pentium L2 Cache initialization.
diff --git a/src/cpu/intel/slot_1/slot_1.c b/src/cpu/intel/slot_1/slot_1.c
index e95b722..e540548 100644
--- a/src/cpu/intel/slot_1/slot_1.c
+++ b/src/cpu/intel/slot_1/slot_1.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <device/device.h>
 
diff --git a/src/cpu/qemu-power8/qemu.c b/src/cpu/qemu-power8/qemu.c
index e617b86..f3a2845 100644
--- a/src/cpu/qemu-power8/qemu.c
+++ b/src/cpu/qemu-power8/qemu.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <cpu/cpu.h>
 #include <device/device.h>
diff --git a/src/cpu/qemu-x86/qemu.c b/src/cpu/qemu-x86/qemu.c
index 12b7c79..fb8cd6b 100644
--- a/src/cpu/qemu-x86/qemu.c
+++ b/src/cpu/qemu-x86/qemu.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <cpu/cpu.h>
 #include <device/device.h>
diff --git a/src/cpu/ti/am335x/clock.h b/src/cpu/ti/am335x/clock.h
index f43fbe2..cc9c5c3 100644
--- a/src/cpu/ti/am335x/clock.h
+++ b/src/cpu/ti/am335x/clock.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef __CPU_TI_AM335X_CLOCK_H__
 #define __CPU_TI_AM335X_CLOCK_H__
diff --git a/src/cpu/ti/am335x/gpio.c b/src/cpu/ti/am335x/gpio.c
index 5906a98..b1bf782 100644
--- a/src/cpu/ti/am335x/gpio.c
+++ b/src/cpu/ti/am335x/gpio.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <device/mmio.h>
 #include <console/console.h>
diff --git a/src/cpu/ti/am335x/gpio.h b/src/cpu/ti/am335x/gpio.h
index 84df942..a792e71 100644
--- a/src/cpu/ti/am335x/gpio.h
+++ b/src/cpu/ti/am335x/gpio.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef __CPU_TI_AM335X_GPIO_H__
 #define __CPU_TI_AM335X_GPIO_H__
diff --git a/src/cpu/ti/am335x/header.c b/src/cpu/ti/am335x/header.c
index 80cb88f..3edf8b0 100644
--- a/src/cpu/ti/am335x/header.c
+++ b/src/cpu/ti/am335x/header.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <stddef.h>
 #include <stdint.h>
diff --git a/src/cpu/ti/am335x/header.h b/src/cpu/ti/am335x/header.h
index 814b273..a8e2599 100644
--- a/src/cpu/ti/am335x/header.h
+++ b/src/cpu/ti/am335x/header.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef __CPU_TI_AM335X_HEADER_H
 #define __CPU_TI_AM335X_HEADER_H
diff --git a/src/cpu/ti/am335x/pinmux.c b/src/cpu/ti/am335x/pinmux.c
index e1cc419..81ee5f9 100644
--- a/src/cpu/ti/am335x/pinmux.c
+++ b/src/cpu/ti/am335x/pinmux.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include "pinmux.h"
 
diff --git a/src/cpu/ti/am335x/pinmux.h b/src/cpu/ti/am335x/pinmux.h
index 94f189f..9c905d4 100644
--- a/src/cpu/ti/am335x/pinmux.h
+++ b/src/cpu/ti/am335x/pinmux.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef __CPU_TI_AM335X_PINMUX_H
 #define __CPU_TI_AM335X_PINMUX_H
diff --git a/src/cpu/ti/am335x/uart.c b/src/cpu/ti/am335x/uart.c
index e7e9141..9b7e2aa 100644
--- a/src/cpu/ti/am335x/uart.c
+++ b/src/cpu/ti/am335x/uart.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <types.h>
 #include <console/uart.h>
diff --git a/src/cpu/ti/am335x/uart.h b/src/cpu/ti/am335x/uart.h
index 686040f..ce6ebde 100644
--- a/src/cpu/ti/am335x/uart.h
+++ b/src/cpu/ti/am335x/uart.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef AM335X_UART_H
 #define AM335X_UART_H
diff --git a/src/cpu/x86/early_reset.S b/src/cpu/x86/early_reset.S
index 93c1b49..cbf4de7 100644
--- a/src/cpu/x86/early_reset.S
+++ b/src/cpu/x86/early_reset.S
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /*
  * input %esp: return address (not pointer to return address!)
diff --git a/src/device/dram/ddr2.c b/src/device/dram/ddr2.c
index 12200f7..db108d7 100644
--- a/src/device/dram/ddr2.c
+++ b/src/device/dram/ddr2.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /**
  * @file ddr2.c
diff --git a/src/device/dram/ddr3.c b/src/device/dram/ddr3.c
index 7eaf960..a2fc617 100644
--- a/src/device/dram/ddr3.c
+++ b/src/device/dram/ddr3.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /**
  * @file ddr3.c
diff --git a/src/drivers/aspeed/common/aspeed_coreboot.h b/src/drivers/aspeed/common/aspeed_coreboot.h
index 72ef4e7..1d8bdb9 100644
--- a/src/drivers/aspeed/common/aspeed_coreboot.h
+++ b/src/drivers/aspeed/common/aspeed_coreboot.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef _ASPEED_COREBOOT_
 #define _ASPEED_COREBOOT_
diff --git a/src/drivers/dec/21143/21143.c b/src/drivers/dec/21143/21143.c
index d718597..0721d86 100644
--- a/src/drivers/dec/21143/21143.c
+++ b/src/drivers/dec/21143/21143.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <device/device.h>
 #include <device/pci_def.h>
diff --git a/src/drivers/emulation/qemu/cirrus.c b/src/drivers/emulation/qemu/cirrus.c
index a58d761..99f41b1 100644
--- a/src/drivers/emulation/qemu/cirrus.c
+++ b/src/drivers/emulation/qemu/cirrus.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <stdint.h>
 #include <edid.h>
diff --git a/src/drivers/i2c/adt7463/adt7463.c b/src/drivers/i2c/adt7463/adt7463.c
index 199b6a8..fd8732e 100644
--- a/src/drivers/i2c/adt7463/adt7463.c
+++ b/src/drivers/i2c/adt7463/adt7463.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <device/device.h>
 #include <console/console.h>
diff --git a/src/drivers/i2c/tpm/cr50.c b/src/drivers/i2c/tpm/cr50.c
index 72431e2..c1b5cb5 100644
--- a/src/drivers/i2c/tpm/cr50.c
+++ b/src/drivers/i2c/tpm/cr50.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation, version 2 of the
- * License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 /* Based on Linux Kernel TPM driver */
 
diff --git a/src/drivers/i2c/tpm/tis.c b/src/drivers/i2c/tpm/tis.c
index de41167..a7004a8 100644
--- a/src/drivers/i2c/tpm/tis.c
+++ b/src/drivers/i2c/tpm/tis.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but without any warranty; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <stdint.h>
 #include <string.h>
diff --git a/src/drivers/i2c/tpm/tis_atmel.c b/src/drivers/i2c/tpm/tis_atmel.c
index 82f21ca..161cb45 100644
--- a/src/drivers/i2c/tpm/tis_atmel.c
+++ b/src/drivers/i2c/tpm/tis_atmel.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but without any warranty; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <assert.h>
 #include <commonlib/endian.h>
diff --git a/src/drivers/i2c/tpm/tpm.c b/src/drivers/i2c/tpm/tpm.c
index 2917b45..0f097ff 100644
--- a/src/drivers/i2c/tpm/tpm.c
+++ b/src/drivers/i2c/tpm/tpm.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation, version 2 of the
- * License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 /*
  * Description:
diff --git a/src/drivers/i2c/tpm/tpm.h b/src/drivers/i2c/tpm/tpm.h
index c1ed3f0..55792a5 100644
--- a/src/drivers/i2c/tpm/tpm.h
+++ b/src/drivers/i2c/tpm/tpm.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation, version 2 of the
- * License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 /*
  * Description:
diff --git a/src/drivers/i2c/ww_ring/ww_ring.c b/src/drivers/i2c/ww_ring/ww_ring.c
index a7b20bf..ed01f93 100644
--- a/src/drivers/i2c/ww_ring/ww_ring.c
+++ b/src/drivers/i2c/ww_ring/ww_ring.c
@@ -1,14 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 /*
  * This is a driver for the Whirlwind LED ring, which is equipped with two LED
diff --git a/src/drivers/i2c/ww_ring/ww_ring.h b/src/drivers/i2c/ww_ring/ww_ring.h
index f17f5e3..8e1b312 100644
--- a/src/drivers/i2c/ww_ring/ww_ring.h
+++ b/src/drivers/i2c/ww_ring/ww_ring.h
@@ -1,14 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #ifndef __SRC_DRIVERS_VIDEO_WW_RING__H__
 #define __SRC_DRIVERS_VIDEO_WW_RING__H__
diff --git a/src/drivers/i2c/ww_ring/ww_ring_programs.c b/src/drivers/i2c/ww_ring/ww_ring_programs.c
index 2283fb9..5cb371c 100644
--- a/src/drivers/i2c/ww_ring/ww_ring_programs.c
+++ b/src/drivers/i2c/ww_ring/ww_ring_programs.c
@@ -1,14 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 /*
  * This is a driver for the Whirlwind LED ring, which is equipped with two LED
diff --git a/src/drivers/i2c/ww_ring/ww_ring_programs.h b/src/drivers/i2c/ww_ring/ww_ring_programs.h
index ea0e241..b5562cc 100644
--- a/src/drivers/i2c/ww_ring/ww_ring_programs.h
+++ b/src/drivers/i2c/ww_ring/ww_ring_programs.h
@@ -1,14 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 /*
  * This is a driver for the Whirlwind LED ring, which is equipped with two LED
diff --git a/src/drivers/intel/fsp2_0/debug.c b/src/drivers/intel/fsp2_0/debug.c
index e7a163f..7fcbda1 100644
--- a/src/drivers/intel/fsp2_0/debug.c
+++ b/src/drivers/intel/fsp2_0/debug.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <console/console.h>
 #include <console/streams.h>
diff --git a/src/drivers/intel/fsp2_0/graphics.c b/src/drivers/intel/fsp2_0/graphics.c
index d05b09f..f4c9996 100644
--- a/src/drivers/intel/fsp2_0/graphics.c
+++ b/src/drivers/intel/fsp2_0/graphics.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <boot/coreboot_tables.h>
 #include <console/console.h>
diff --git a/src/drivers/intel/fsp2_0/hand_off_block.c b/src/drivers/intel/fsp2_0/hand_off_block.c
index 183487d..0391b86 100644
--- a/src/drivers/intel/fsp2_0/hand_off_block.c
+++ b/src/drivers/intel/fsp2_0/hand_off_block.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <device/mmio.h>
 #include <cbmem.h>
diff --git a/src/drivers/intel/fsp2_0/header_display.c b/src/drivers/intel/fsp2_0/header_display.c
index abb99c1..19f4998 100644
--- a/src/drivers/intel/fsp2_0/header_display.c
+++ b/src/drivers/intel/fsp2_0/header_display.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <console/console.h>
 #include <fsp/util.h>
diff --git a/src/drivers/intel/fsp2_0/hob_display.c b/src/drivers/intel/fsp2_0/hob_display.c
index 69eaed2..d962a84 100644
--- a/src/drivers/intel/fsp2_0/hob_display.c
+++ b/src/drivers/intel/fsp2_0/hob_display.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <console/console.h>
 #include <fsp/util.h>
diff --git a/src/drivers/intel/fsp2_0/hob_verify.c b/src/drivers/intel/fsp2_0/hob_verify.c
index 36a4eea..b0adbfe 100644
--- a/src/drivers/intel/fsp2_0/hob_verify.c
+++ b/src/drivers/intel/fsp2_0/hob_verify.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <cbmem.h>
 #include <console/console.h>
diff --git a/src/drivers/intel/fsp2_0/include/fsp/api.h b/src/drivers/intel/fsp2_0/include/fsp/api.h
index 239d387..126dc70 100644
--- a/src/drivers/intel/fsp2_0/include/fsp/api.h
+++ b/src/drivers/intel/fsp2_0/include/fsp/api.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef _FSP2_0_API_H_
 #define _FSP2_0_API_H_
diff --git a/src/drivers/intel/fsp2_0/include/fsp/debug.h b/src/drivers/intel/fsp2_0/include/fsp/debug.h
index 0409bbf..9dde8c6 100644
--- a/src/drivers/intel/fsp2_0/include/fsp/debug.h
+++ b/src/drivers/intel/fsp2_0/include/fsp/debug.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef _FSP2_0_DEBUG_H_
 #define _FSP2_0_DEBUG_H_
diff --git a/src/drivers/intel/fsp2_0/include/fsp/info_header.h b/src/drivers/intel/fsp2_0/include/fsp/info_header.h
index 3b73730..2fff273 100644
--- a/src/drivers/intel/fsp2_0/include/fsp/info_header.h
+++ b/src/drivers/intel/fsp2_0/include/fsp/info_header.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef _FSP2_0_INFO_HEADER_H_
 #define _FSP2_0_INFO_HEADER_H_
diff --git a/src/drivers/intel/fsp2_0/include/fsp/upd.h b/src/drivers/intel/fsp2_0/include/fsp/upd.h
index 34c3d95..bf0a968 100644
--- a/src/drivers/intel/fsp2_0/include/fsp/upd.h
+++ b/src/drivers/intel/fsp2_0/include/fsp/upd.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef _FSP2_0_UPD_H_
 #define _FSP2_0_UPD_H_
diff --git a/src/drivers/intel/fsp2_0/include/fsp/util.h b/src/drivers/intel/fsp2_0/include/fsp/util.h
index c8dfd8e..e98aaf6 100644
--- a/src/drivers/intel/fsp2_0/include/fsp/util.h
+++ b/src/drivers/intel/fsp2_0/include/fsp/util.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef _FSP2_0_UTIL_H_
 #define _FSP2_0_UTIL_H_
diff --git a/src/drivers/intel/fsp2_0/memory_init.c b/src/drivers/intel/fsp2_0/memory_init.c
index 5af3842..71441c2 100644
--- a/src/drivers/intel/fsp2_0/memory_init.c
+++ b/src/drivers/intel/fsp2_0/memory_init.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <security/vboot/antirollback.h>
 #include <arch/symbols.h>
diff --git a/src/drivers/intel/fsp2_0/notify.c b/src/drivers/intel/fsp2_0/notify.c
index d18d737..9473772 100644
--- a/src/drivers/intel/fsp2_0/notify.c
+++ b/src/drivers/intel/fsp2_0/notify.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <bootstate.h>
 #include <console/console.h>
diff --git a/src/drivers/intel/fsp2_0/silicon_init.c b/src/drivers/intel/fsp2_0/silicon_init.c
index 07b2024..32e7fa2 100644
--- a/src/drivers/intel/fsp2_0/silicon_init.c
+++ b/src/drivers/intel/fsp2_0/silicon_init.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <cbfs.h>
 #include <cbmem.h>
diff --git a/src/drivers/intel/fsp2_0/temp_ram_exit.c b/src/drivers/intel/fsp2_0/temp_ram_exit.c
index c4f60b1..d9e4fa8 100644
--- a/src/drivers/intel/fsp2_0/temp_ram_exit.c
+++ b/src/drivers/intel/fsp2_0/temp_ram_exit.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <arch/romstage.h>
 #include <console/console.h>
diff --git a/src/drivers/intel/fsp2_0/upd_display.c b/src/drivers/intel/fsp2_0/upd_display.c
index 4afc7f9..4f97490 100644
--- a/src/drivers/intel/fsp2_0/upd_display.c
+++ b/src/drivers/intel/fsp2_0/upd_display.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <console/console.h>
 #include <fsp/util.h>
diff --git a/src/drivers/intel/fsp2_0/util.c b/src/drivers/intel/fsp2_0/util.c
index 1d845be..6e4bb2a 100644
--- a/src/drivers/intel/fsp2_0/util.c
+++ b/src/drivers/intel/fsp2_0/util.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <device/mmio.h>
 #include <cf9_reset.h>
diff --git a/src/drivers/intel/gma/edid.c b/src/drivers/intel/gma/edid.c
index 796f4df..39f4e5d 100644
--- a/src/drivers/intel/gma/edid.c
+++ b/src/drivers/intel/gma/edid.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2, or (at your option)
- * any later version of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <device/mmio.h>
 #include <console/console.h>
diff --git a/src/drivers/intel/gma/opregion.c b/src/drivers/intel/gma/opregion.c
index bc1b296..cc68ab9 100644
--- a/src/drivers/intel/gma/opregion.c
+++ b/src/drivers/intel/gma/opregion.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2, or (at your option)
- * any later version of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <acpi/acpi.h>
 #include <types.h>
diff --git a/src/drivers/intel/gma/opregion.h b/src/drivers/intel/gma/opregion.h
index dd1beab..0c5d30a 100644
--- a/src/drivers/intel/gma/opregion.h
+++ b/src/drivers/intel/gma/opregion.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef _COMMON_GMA_H_
 #define _COMMON_GMA_H_
diff --git a/src/drivers/intel/gma/vbt.c b/src/drivers/intel/gma/vbt.c
index a4b1c28..3dfe282 100644
--- a/src/drivers/intel/gma/vbt.c
+++ b/src/drivers/intel/gma/vbt.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 or (at your option)
- * any later version of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <device/pci_ops.h>
 #include <device/device.h>
diff --git a/src/drivers/intel/wifi/wifi.c b/src/drivers/intel/wifi/wifi.c
index dffb207..9aeda87 100644
--- a/src/drivers/intel/wifi/wifi.c
+++ b/src/drivers/intel/wifi/wifi.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 or (at your option)
- * any later version of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <device/device.h>
 #include <device/pci.h>
diff --git a/src/drivers/lenovo/lenovo.h b/src/drivers/lenovo/lenovo.h
index 390df37..71c171e 100644
--- a/src/drivers/lenovo/lenovo.h
+++ b/src/drivers/lenovo/lenovo.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 int drivers_lenovo_is_wacom_present(void);
 void drivers_lenovo_serial_ports_ssdt_generate(const char *scope,
diff --git a/src/drivers/lenovo/wacom.c b/src/drivers/lenovo/wacom.c
index 5a07d27..238f754 100644
--- a/src/drivers/lenovo/wacom.c
+++ b/src/drivers/lenovo/wacom.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2, or (at your
- * option) any later version, of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <types.h>
 #include <console/console.h>
diff --git a/src/drivers/maxim/max77686/max77686.c b/src/drivers/maxim/max77686/max77686.c
index 5b24187..9acb459 100644
--- a/src/drivers/maxim/max77686/max77686.c
+++ b/src/drivers/maxim/max77686/max77686.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <console/console.h>
 #include <device/mmio.h>
diff --git a/src/drivers/maxim/max77686/max77686.h b/src/drivers/maxim/max77686/max77686.h
index 74e03f8..25b7f49 100644
--- a/src/drivers/maxim/max77686/max77686.h
+++ b/src/drivers/maxim/max77686/max77686.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef __MAX77686_H_
 #define __MAX77686_H_
diff --git a/src/drivers/maxim/max77802/max77802.h b/src/drivers/maxim/max77802/max77802.h
index 85e385e..f8bb631 100644
--- a/src/drivers/maxim/max77802/max77802.h
+++ b/src/drivers/maxim/max77802/max77802.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef __MAX77802_H_
 #define __MAX77802_H_
diff --git a/src/drivers/pc80/pc/spkmodem.c b/src/drivers/pc80/pc/spkmodem.c
index 4dd5972..ee31757 100644
--- a/src/drivers/pc80/pc/spkmodem.c
+++ b/src/drivers/pc80/pc/spkmodem.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <arch/io.h>
 #include <console/spkmodem.h>
diff --git a/src/drivers/pc80/vga/vga_palette.c b/src/drivers/pc80/vga/vga_palette.c
index 2e58a55..19e7651 100644
--- a/src/drivers/pc80/vga/vga_palette.c
+++ b/src/drivers/pc80/vga/vga_palette.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include "vga.h"
 
diff --git a/src/drivers/secunet/dmi/eeprom.h b/src/drivers/secunet/dmi/eeprom.h
index c4cdd41..602af40 100644
--- a/src/drivers/secunet/dmi/eeprom.h
+++ b/src/drivers/secunet/dmi/eeprom.h
@@ -1,13 +1,4 @@
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #ifndef _SECUNET_DMI_EEPROM_H
 #define _SECUNET_DMI_EEPROM_H
diff --git a/src/drivers/spi/adesto.c b/src/drivers/spi/adesto.c
index eb09fe5..958d2dd 100644
--- a/src/drivers/spi/adesto.c
+++ b/src/drivers/spi/adesto.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /*
  * Driver for Adesto Technologies SPI flash
diff --git a/src/drivers/spi/amic.c b/src/drivers/spi/amic.c
index b0198b3..5de89ab 100644
--- a/src/drivers/spi/amic.c
+++ b/src/drivers/spi/amic.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <console/console.h>
 #include <commonlib/helpers.h>
diff --git a/src/drivers/spi/atmel.c b/src/drivers/spi/atmel.c
index 6feda6e..70a4635 100644
--- a/src/drivers/spi/atmel.c
+++ b/src/drivers/spi/atmel.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <console/console.h>
 #include <commonlib/helpers.h>
diff --git a/src/drivers/spi/eon.c b/src/drivers/spi/eon.c
index f5923c3..f2f1627 100644
--- a/src/drivers/spi/eon.c
+++ b/src/drivers/spi/eon.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <console/console.h>
 #include <commonlib/helpers.h>
diff --git a/src/drivers/spi/gigadevice.c b/src/drivers/spi/gigadevice.c
index ccc8eba..6924c18 100644
--- a/src/drivers/spi/gigadevice.c
+++ b/src/drivers/spi/gigadevice.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <console/console.h>
 #include <commonlib/helpers.h>
diff --git a/src/drivers/spi/macronix.c b/src/drivers/spi/macronix.c
index 12f8679..69e3e08 100644
--- a/src/drivers/spi/macronix.c
+++ b/src/drivers/spi/macronix.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <console/console.h>
 #include <commonlib/helpers.h>
diff --git a/src/drivers/spi/spansion.c b/src/drivers/spi/spansion.c
index 9d5f559..7818ec7 100644
--- a/src/drivers/spi/spansion.c
+++ b/src/drivers/spi/spansion.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <console/console.h>
 #include <commonlib/helpers.h>
diff --git a/src/drivers/spi/spi-generic.c b/src/drivers/spi/spi-generic.c
index 4ce29ed..90e97b8 100644
--- a/src/drivers/spi/spi-generic.c
+++ b/src/drivers/spi/spi-generic.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <assert.h>
 #include <commonlib/helpers.h>
diff --git a/src/drivers/spi/spi_flash.c b/src/drivers/spi/spi_flash.c
index eb19860..d936219 100644
--- a/src/drivers/spi/spi_flash.c
+++ b/src/drivers/spi/spi_flash.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <assert.h>
 #include <boot_device.h>
diff --git a/src/drivers/spi/spi_flash_internal.h b/src/drivers/spi/spi_flash_internal.h
index e5884a4..a53ca7b 100644
--- a/src/drivers/spi/spi_flash_internal.h
+++ b/src/drivers/spi/spi_flash_internal.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /*
  * SPI flash internal definitions
diff --git a/src/drivers/spi/sst.c b/src/drivers/spi/sst.c
index f48d107..b02061c 100644
--- a/src/drivers/spi/sst.c
+++ b/src/drivers/spi/sst.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /*
  * Driver for SST serial flashes
diff --git a/src/drivers/spi/stmicro.c b/src/drivers/spi/stmicro.c
index 464d366..0482972 100644
--- a/src/drivers/spi/stmicro.c
+++ b/src/drivers/spi/stmicro.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <console/console.h>
 #include <commonlib/helpers.h>
diff --git a/src/drivers/spi/winbond.c b/src/drivers/spi/winbond.c
index b146984..278e64d 100644
--- a/src/drivers/spi/winbond.c
+++ b/src/drivers/spi/winbond.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <console/console.h>
 #include <commonlib/helpers.h>
diff --git a/src/drivers/uart/pl011.c b/src/drivers/uart/pl011.c
index 682a334..936114a 100644
--- a/src/drivers/uart/pl011.c
+++ b/src/drivers/uart/pl011.c
@@ -1,14 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <device/mmio.h>
 #include <boot/coreboot_tables.h>
diff --git a/src/drivers/wifi/generic.c b/src/drivers/wifi/generic.c
index e4b6f33..d3b0a52 100644
--- a/src/drivers/wifi/generic.c
+++ b/src/drivers/wifi/generic.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 or (at your option)
- * any later version of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <acpi/acpi_device.h>
 #include <acpi/acpigen.h>
diff --git a/src/drivers/xgi/common/xgi_coreboot.h b/src/drivers/xgi/common/xgi_coreboot.h
index bfc5dd5..e12bd78 100644
--- a/src/drivers/xgi/common/xgi_coreboot.h
+++ b/src/drivers/xgi/common/xgi_coreboot.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /* Portions marked below taken from XGI/SiS Linux kernel drivers */
 
diff --git a/src/ec/google/chromeec/ec_message.h b/src/ec/google/chromeec/ec_message.h
index f0eab2f..f074ae8 100644
--- a/src/ec/google/chromeec/ec_message.h
+++ b/src/ec/google/chromeec/ec_message.h
@@ -1,17 +1,7 @@
 /*
  * Chromium OS Matrix Keyboard Message Protocol definitions
  */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef _CROS_MESSAGE_H
 #define _CROS_MESSAGE_H
diff --git a/src/include/b64_decode.h b/src/include/b64_decode.h
index 0deb7aa..34e0e5a 100644
--- a/src/include/b64_decode.h
+++ b/src/include/b64_decode.h
@@ -1,13 +1,4 @@
-/*
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #ifndef __INCLUDE_B64_DECODE_H__
 #define __INCLUDE_B64_DECODE_H__
diff --git a/src/include/console/post_codes.h b/src/include/console/post_codes.h
index 416d487..77f3b0a 100644
--- a/src/include/console/post_codes.h
+++ b/src/include/console/post_codes.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /**
  * @file post_codes.h
diff --git a/src/include/cpu/intel/l2_cache.h b/src/include/cpu/intel/l2_cache.h
index c253f88..8322a86 100644
--- a/src/include/cpu/intel/l2_cache.h
+++ b/src/include/cpu/intel/l2_cache.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /* The L2 cache definitions here only apply to SECC/SECC2 P6 family CPUs
  * with Klamath (63x), Deschutes (65x) and Katmai (67x) cores.
diff --git a/src/include/device/dram/common.h b/src/include/device/dram/common.h
index 32cdc79d..67d968b 100644
--- a/src/include/device/dram/common.h
+++ b/src/include/device/dram/common.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef DEVICE_DRAM_COMMON_H
 #define DEVICE_DRAM_COMMON_H
diff --git a/src/include/device/dram/ddr2.h b/src/include/device/dram/ddr2.h
index f839659..408075f 100644
--- a/src/include/device/dram/ddr2.h
+++ b/src/include/device/dram/ddr2.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /*
  * JEDEC Standard No. 21-C
diff --git a/src/include/device/dram/ddr3.h b/src/include/device/dram/ddr3.h
index 2ded8a8..2eba3f3 100644
--- a/src/include/device/dram/ddr3.h
+++ b/src/include/device/dram/ddr3.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /*
  * JEDEC Standard No. 21-C
diff --git a/src/include/device_tree.h b/src/include/device_tree.h
index 0de9dba..bd0d151 100644
--- a/src/include/device_tree.h
+++ b/src/include/device_tree.h
@@ -1,15 +1,5 @@
 /* Taken from depthcharge: src/base/device_tree.h */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but without any warranty; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef __DEVICE_TREE_H__
 #define __DEVICE_TREE_H__
diff --git a/src/include/dimm_info_util.h b/src/include/dimm_info_util.h
index 48fff6c..4622c1f 100644
--- a/src/include/dimm_info_util.h
+++ b/src/include/dimm_info_util.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version
- * 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #ifndef _DIMM_INFO_UTIL_H_
 #define _DIMM_INFO_UTIL_H_
diff --git a/src/include/endian.h b/src/include/endian.h
index a1c7f6a..552ce002 100644
--- a/src/include/endian.h
+++ b/src/include/endian.h
@@ -1,14 +1,4 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but without any warranty; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef _ENDIAN_H_
 #define _ENDIAN_H_
diff --git a/src/include/fit.h b/src/include/fit.h
index beec38a..a1e970d 100644
--- a/src/include/fit.h
+++ b/src/include/fit.h
@@ -1,15 +1,5 @@
 /* Taken from depthcharge: src/boot/fit.h */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but without any warranty; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef __LIB_FIT_H__
 #define __LIB_FIT_H__
diff --git a/src/include/fit_payload.h b/src/include/fit_payload.h
index 657c7d5..8632b05 100644
--- a/src/include/fit_payload.h
+++ b/src/include/fit_payload.h
@@ -1,14 +1,4 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but without any warranty; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef __FIT_PAYLOAD_H_
 #define __FIT_PAYLOAD_H_
diff --git a/src/include/list.h b/src/include/list.h
index 9706080..a899035 100644
--- a/src/include/list.h
+++ b/src/include/list.h
@@ -1,15 +1,5 @@
 /* Taken from depthcharge: src/base/list.h */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but without any warranty; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef __LIST_H__
 #define __LIST_H__
diff --git a/src/include/memory_info.h b/src/include/memory_info.h
index 03b4fdc..a989118 100644
--- a/src/include/memory_info.h
+++ b/src/include/memory_info.h
@@ -1,14 +1,5 @@
 /* Memory information */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version
- * 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #ifndef _MEMORY_INFO_H_
 #define _MEMORY_INFO_H_
diff --git a/src/include/pc80/vga.h b/src/include/pc80/vga.h
index ea47368..e6aed86 100644
--- a/src/include/pc80/vga.h
+++ b/src/include/pc80/vga.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef VGA_H
 #define VGA_H
diff --git a/src/include/pc80/vga_io.h b/src/include/pc80/vga_io.h
index 3cfba1b..79cc581 100644
--- a/src/include/pc80/vga_io.h
+++ b/src/include/pc80/vga_io.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef VGA_IO_H
 #define VGA_IO_H
diff --git a/src/include/sdram_mode.h b/src/include/sdram_mode.h
index 5dadaee..31c6262 100644
--- a/src/include/sdram_mode.h
+++ b/src/include/sdram_mode.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /*
  * sdram_mode.h: Definitions for SDRAM Mode Register and Extended Mode Register
diff --git a/src/include/spd.h b/src/include/spd.h
index cacb205..0d67502 100644
--- a/src/include/spd.h
+++ b/src/include/spd.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /*
  * Serial Presence Detect (SPD) data stored on SDRAM modules.
diff --git a/src/include/spi-generic.h b/src/include/spi-generic.h
index a57ec90..77a3c09 100644
--- a/src/include/spi-generic.h
+++ b/src/include/spi-generic.h
@@ -1,14 +1,4 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef _SPI_GENERIC_H_
 #define _SPI_GENERIC_H_
diff --git a/src/include/spi_bitbang.h b/src/include/spi_bitbang.h
index 4691fd2..4dd560e 100644
--- a/src/include/spi_bitbang.h
+++ b/src/include/spi_bitbang.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 #ifndef _SPI_BITBANG_H_
 #define _SPI_BITBANG_H_
 
diff --git a/src/include/spi_flash.h b/src/include/spi_flash.h
index 5dce720..9d0e3ad 100644
--- a/src/include/spi_flash.h
+++ b/src/include/spi_flash.h
@@ -1,14 +1,5 @@
 /* Interface to SPI flash */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 #ifndef _SPI_FLASH_H_
 #define _SPI_FLASH_H_
 
diff --git a/src/lib/b64_decode.c b/src/lib/b64_decode.c
index 57c88387..b4dd3f8 100644
--- a/src/lib/b64_decode.c
+++ b/src/lib/b64_decode.c
@@ -1,13 +1,4 @@
-/*
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <b64_decode.h>
 #include <console/console.h>
diff --git a/src/lib/device_tree.c b/src/lib/device_tree.c
index 2124edd..cb81d32 100644
--- a/src/lib/device_tree.c
+++ b/src/lib/device_tree.c
@@ -1,15 +1,5 @@
 /* Taken from depthcharge: src/base/device_tree.c */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but without any warranty; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <assert.h>
 #include <commonlib/stdlib.h>
diff --git a/src/lib/fit.c b/src/lib/fit.c
index be6c87a..90cbfca 100644
--- a/src/lib/fit.c
+++ b/src/lib/fit.c
@@ -1,15 +1,5 @@
 /* Taken from depthcharge: src/boot/fit.c */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <assert.h>
 #include <cbfs.h>
diff --git a/src/lib/hexdump.c b/src/lib/hexdump.c
index 95f3b93..90446c1 100644
--- a/src/lib/hexdump.c
+++ b/src/lib/hexdump.c
@@ -1,14 +1,4 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but without any warranty; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <console/console.h>
 #include <ctype.h>
diff --git a/src/lib/list.c b/src/lib/list.c
index 9138ab3..01d5c89 100644
--- a/src/lib/list.c
+++ b/src/lib/list.c
@@ -1,15 +1,5 @@
 /* Taken from depthcharge: src/base/list.c */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but without any warranty; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <list.h>
 
diff --git a/src/mainboard/amd/padmelon/hda_verb.c b/src/mainboard/amd/padmelon/hda_verb.c
index 4e1418c..de192a3 100644
--- a/src/mainboard/amd/padmelon/hda_verb.c
+++ b/src/mainboard/amd/padmelon/hda_verb.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <device/azalia_device.h>
 
diff --git a/src/mainboard/apple/macbook21/hda_verb.c b/src/mainboard/apple/macbook21/hda_verb.c
index cfd6e0b..a7e1138 100644
--- a/src/mainboard/apple/macbook21/hda_verb.c
+++ b/src/mainboard/apple/macbook21/hda_verb.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of the License,
- * or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <device/azalia_device.h>
 
diff --git a/src/mainboard/asrock/b75pro3-m/mainboard.c b/src/mainboard/asrock/b75pro3-m/mainboard.c
index ef92966..53ca822 100644
--- a/src/mainboard/asrock/b75pro3-m/mainboard.c
+++ b/src/mainboard/asrock/b75pro3-m/mainboard.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <device/device.h>
 #include <drivers/intel/gma/int15.h>
diff --git a/src/mainboard/asrock/g41c-gs/early_init.c b/src/mainboard/asrock/g41c-gs/early_init.c
index 88fe3fb..9f811a4 100644
--- a/src/mainboard/asrock/g41c-gs/early_init.c
+++ b/src/mainboard/asrock/g41c-gs/early_init.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <bootblock_common.h>
 #include <device/pnp_ops.h>
diff --git a/src/mainboard/asrock/g41c-gs/hda_verb.c b/src/mainboard/asrock/g41c-gs/hda_verb.c
index 661f6c45..33b1027 100644
--- a/src/mainboard/asrock/g41c-gs/hda_verb.c
+++ b/src/mainboard/asrock/g41c-gs/hda_verb.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <device/azalia_device.h>
 
diff --git a/src/mainboard/asrock/h110m/mainboard.c b/src/mainboard/asrock/h110m/mainboard.c
index 01b70e0..fe670ef 100644
--- a/src/mainboard/asrock/h110m/mainboard.c
+++ b/src/mainboard/asrock/h110m/mainboard.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <device/device.h>
 #include <drivers/intel/gma/int15.h>
diff --git a/src/mainboard/asrock/h81m-hds/acpi/platform.asl b/src/mainboard/asrock/h81m-hds/acpi/platform.asl
index 81591d6..2238209 100644
--- a/src/mainboard/asrock/h81m-hds/acpi/platform.asl
+++ b/src/mainboard/asrock/h81m-hds/acpi/platform.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 Method(_WAK, 1)
 {
diff --git a/src/mainboard/asrock/h81m-hds/acpi/superio.asl b/src/mainboard/asrock/h81m-hds/acpi/superio.asl
index 43ab19a..8cb29ea 100644
--- a/src/mainboard/asrock/h81m-hds/acpi/superio.asl
+++ b/src/mainboard/asrock/h81m-hds/acpi/superio.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #define SUPERIO_DEV		SIO0
 #define SUPERIO_PNP_BASE	0x2e
diff --git a/src/mainboard/asrock/h81m-hds/acpi_tables.c b/src/mainboard/asrock/h81m-hds/acpi_tables.c
index 4c60061..b40bb95 100644
--- a/src/mainboard/asrock/h81m-hds/acpi_tables.c
+++ b/src/mainboard/asrock/h81m-hds/acpi_tables.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <southbridge/intel/lynxpoint/nvs.h>
 
diff --git a/src/mainboard/asrock/h81m-hds/dsdt.asl b/src/mainboard/asrock/h81m-hds/dsdt.asl
index 9e40cfc..e8335d5 100644
--- a/src/mainboard/asrock/h81m-hds/dsdt.asl
+++ b/src/mainboard/asrock/h81m-hds/dsdt.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <acpi/acpi.h>
 DefinitionBlock(
diff --git a/src/mainboard/asrock/h81m-hds/gpio.c b/src/mainboard/asrock/h81m-hds/gpio.c
index 6610ab1..8527766 100644
--- a/src/mainboard/asrock/h81m-hds/gpio.c
+++ b/src/mainboard/asrock/h81m-hds/gpio.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <southbridge/intel/common/gpio.h>
 
diff --git a/src/mainboard/asrock/h81m-hds/hda_verb.c b/src/mainboard/asrock/h81m-hds/hda_verb.c
index a07ca8c..8ac0e7e 100644
--- a/src/mainboard/asrock/h81m-hds/hda_verb.c
+++ b/src/mainboard/asrock/h81m-hds/hda_verb.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <stdint.h>
 #include <device/azalia_device.h>
diff --git a/src/mainboard/asrock/h81m-hds/mainboard.c b/src/mainboard/asrock/h81m-hds/mainboard.c
index 01b70e0..fe670ef 100644
--- a/src/mainboard/asrock/h81m-hds/mainboard.c
+++ b/src/mainboard/asrock/h81m-hds/mainboard.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <device/device.h>
 #include <drivers/intel/gma/int15.h>
diff --git a/src/mainboard/asus/h61m-cs/acpi/platform.asl b/src/mainboard/asus/h61m-cs/acpi/platform.asl
index 89f8f73..17460c7 100644
--- a/src/mainboard/asus/h61m-cs/acpi/platform.asl
+++ b/src/mainboard/asus/h61m-cs/acpi/platform.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 Method(_WAK,1)
 {
diff --git a/src/mainboard/asus/h61m-cs/dsdt.asl b/src/mainboard/asus/h61m-cs/dsdt.asl
index b8e4df3..cabf179 100644
--- a/src/mainboard/asus/h61m-cs/dsdt.asl
+++ b/src/mainboard/asus/h61m-cs/dsdt.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <acpi/acpi.h>
 DefinitionBlock(
diff --git a/src/mainboard/asus/maximus_iv_gene-z/acpi/platform.asl b/src/mainboard/asus/maximus_iv_gene-z/acpi/platform.asl
index 81591d6..2238209 100644
--- a/src/mainboard/asus/maximus_iv_gene-z/acpi/platform.asl
+++ b/src/mainboard/asus/maximus_iv_gene-z/acpi/platform.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 Method(_WAK, 1)
 {
diff --git a/src/mainboard/asus/maximus_iv_gene-z/acpi/superio.asl b/src/mainboard/asus/maximus_iv_gene-z/acpi/superio.asl
index a6fe5a7..490e449 100644
--- a/src/mainboard/asus/maximus_iv_gene-z/acpi/superio.asl
+++ b/src/mainboard/asus/maximus_iv_gene-z/acpi/superio.asl
@@ -1,15 +1,4 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <drivers/pc80/pc/ps2_controller.asl>
diff --git a/src/mainboard/asus/maximus_iv_gene-z/acpi_tables.c b/src/mainboard/asus/maximus_iv_gene-z/acpi_tables.c
index f97249d..66cd5fc 100644
--- a/src/mainboard/asus/maximus_iv_gene-z/acpi_tables.c
+++ b/src/mainboard/asus/maximus_iv_gene-z/acpi_tables.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <southbridge/intel/bd82x6x/nvs.h>
 
diff --git a/src/mainboard/asus/maximus_iv_gene-z/dsdt.asl b/src/mainboard/asus/maximus_iv_gene-z/dsdt.asl
index eec65b8..9e787ce 100644
--- a/src/mainboard/asus/maximus_iv_gene-z/dsdt.asl
+++ b/src/mainboard/asus/maximus_iv_gene-z/dsdt.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <acpi/acpi.h>
 DefinitionBlock(
diff --git a/src/mainboard/asus/maximus_iv_gene-z/early_init.c b/src/mainboard/asus/maximus_iv_gene-z/early_init.c
index aae5ee6..e71f233 100644
--- a/src/mainboard/asus/maximus_iv_gene-z/early_init.c
+++ b/src/mainboard/asus/maximus_iv_gene-z/early_init.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <bootblock_common.h>
 #include <device/pnp_ops.h>
diff --git a/src/mainboard/asus/maximus_iv_gene-z/gpio.c b/src/mainboard/asus/maximus_iv_gene-z/gpio.c
index 4b8462d..ad567ba 100644
--- a/src/mainboard/asus/maximus_iv_gene-z/gpio.c
+++ b/src/mainboard/asus/maximus_iv_gene-z/gpio.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <southbridge/intel/common/gpio.h>
 
diff --git a/src/mainboard/asus/maximus_iv_gene-z/hda_verb.c b/src/mainboard/asus/maximus_iv_gene-z/hda_verb.c
index 0fd8d78..c41035a 100644
--- a/src/mainboard/asus/maximus_iv_gene-z/hda_verb.c
+++ b/src/mainboard/asus/maximus_iv_gene-z/hda_verb.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <stdint.h>
 #include <device/azalia_device.h>
diff --git a/src/mainboard/asus/maximus_iv_gene-z/mainboard.c b/src/mainboard/asus/maximus_iv_gene-z/mainboard.c
index 01b70e0..fe670ef 100644
--- a/src/mainboard/asus/maximus_iv_gene-z/mainboard.c
+++ b/src/mainboard/asus/maximus_iv_gene-z/mainboard.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <device/device.h>
 #include <drivers/intel/gma/int15.h>
diff --git a/src/mainboard/asus/p2b/variants/p2b-d/irq_tables.c b/src/mainboard/asus/p2b/variants/p2b-d/irq_tables.c
index 8822035..29442c8 100644
--- a/src/mainboard/asus/p2b/variants/p2b-d/irq_tables.c
+++ b/src/mainboard/asus/p2b/variants/p2b-d/irq_tables.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <arch/pirq_routing.h>
 
diff --git a/src/mainboard/asus/p2b/variants/p2b-d/mptable.c b/src/mainboard/asus/p2b/variants/p2b-d/mptable.c
index 2c7ac60..463ca6c 100644
--- a/src/mainboard/asus/p2b/variants/p2b-d/mptable.c
+++ b/src/mainboard/asus/p2b/variants/p2b-d/mptable.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <arch/smp/mpspec.h>
 #include <arch/ioapic.h>
diff --git a/src/mainboard/asus/p2b/variants/p2b-ds/irq_tables.c b/src/mainboard/asus/p2b/variants/p2b-ds/irq_tables.c
index 84cd137..7d2c567 100644
--- a/src/mainboard/asus/p2b/variants/p2b-ds/irq_tables.c
+++ b/src/mainboard/asus/p2b/variants/p2b-ds/irq_tables.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <arch/pirq_routing.h>
 
diff --git a/src/mainboard/asus/p2b/variants/p2b-ds/mptable.c b/src/mainboard/asus/p2b/variants/p2b-ds/mptable.c
index 0c09233..bd1891d 100644
--- a/src/mainboard/asus/p2b/variants/p2b-ds/mptable.c
+++ b/src/mainboard/asus/p2b/variants/p2b-ds/mptable.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <arch/smp/mpspec.h>
 #include <arch/ioapic.h>
diff --git a/src/mainboard/asus/p2b/variants/p2b-f/irq_tables.c b/src/mainboard/asus/p2b/variants/p2b-f/irq_tables.c
index eab9086..4bd2c98 100644
--- a/src/mainboard/asus/p2b/variants/p2b-f/irq_tables.c
+++ b/src/mainboard/asus/p2b/variants/p2b-f/irq_tables.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <arch/pirq_routing.h>
 
diff --git a/src/mainboard/asus/p2b/variants/p2b-ls/irq_tables.c b/src/mainboard/asus/p2b/variants/p2b-ls/irq_tables.c
index d4b9272..04b6ed2 100644
--- a/src/mainboard/asus/p2b/variants/p2b-ls/irq_tables.c
+++ b/src/mainboard/asus/p2b/variants/p2b-ls/irq_tables.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <arch/pirq_routing.h>
 
diff --git a/src/mainboard/asus/p2b/variants/p2b/irq_tables.c b/src/mainboard/asus/p2b/variants/p2b/irq_tables.c
index d0360d9..578ee09 100644
--- a/src/mainboard/asus/p2b/variants/p2b/irq_tables.c
+++ b/src/mainboard/asus/p2b/variants/p2b/irq_tables.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <arch/pirq_routing.h>
 
diff --git a/src/mainboard/asus/p3b-f/irq_tables.c b/src/mainboard/asus/p3b-f/irq_tables.c
index 5c10ec4..c0c5aa2 100644
--- a/src/mainboard/asus/p3b-f/irq_tables.c
+++ b/src/mainboard/asus/p3b-f/irq_tables.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <arch/pirq_routing.h>
 
diff --git a/src/mainboard/asus/p3b-f/romstage.c b/src/mainboard/asus/p3b-f/romstage.c
index 56f5253..475da28 100644
--- a/src/mainboard/asus/p3b-f/romstage.c
+++ b/src/mainboard/asus/p3b-f/romstage.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <arch/io.h>
 #include <southbridge/intel/i82371eb/i82371eb.h>
diff --git a/src/mainboard/asus/p5qc/early_init.c b/src/mainboard/asus/p5qc/early_init.c
index 5b0539d..bab5b1c 100644
--- a/src/mainboard/asus/p5qc/early_init.c
+++ b/src/mainboard/asus/p5qc/early_init.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <bootblock_common.h>
 #include <southbridge/intel/i82801jx/i82801jx.h>
diff --git a/src/mainboard/asus/p5qc/hda_verb.c b/src/mainboard/asus/p5qc/hda_verb.c
index b760749..cec9bd5 100644
--- a/src/mainboard/asus/p5qc/hda_verb.c
+++ b/src/mainboard/asus/p5qc/hda_verb.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <device/azalia_device.h>
 
diff --git a/src/mainboard/asus/p5ql-em/early_init.c b/src/mainboard/asus/p5ql-em/early_init.c
index 4585a98..99a0f6e 100644
--- a/src/mainboard/asus/p5ql-em/early_init.c
+++ b/src/mainboard/asus/p5ql-em/early_init.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <bootblock_common.h>
 #include <device/pnp_ops.h>
diff --git a/src/mainboard/asus/p5ql-em/hda_verb.c b/src/mainboard/asus/p5ql-em/hda_verb.c
index 8dbf431..5178d3f 100644
--- a/src/mainboard/asus/p5ql-em/hda_verb.c
+++ b/src/mainboard/asus/p5ql-em/hda_verb.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <device/azalia_device.h>
 
diff --git a/src/mainboard/asus/p5qpl-am/early_init.c b/src/mainboard/asus/p5qpl-am/early_init.c
index 5556536..66efd52 100644
--- a/src/mainboard/asus/p5qpl-am/early_init.c
+++ b/src/mainboard/asus/p5qpl-am/early_init.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <bootblock_common.h>
 #include <cf9_reset.h>
diff --git a/src/mainboard/asus/p5qpl-am/hda_verb.c b/src/mainboard/asus/p5qpl-am/hda_verb.c
index cca113c..126c556 100644
--- a/src/mainboard/asus/p5qpl-am/hda_verb.c
+++ b/src/mainboard/asus/p5qpl-am/hda_verb.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <device/azalia_device.h>
 
diff --git a/src/mainboard/asus/p8h61-m_lx/acpi/platform.asl b/src/mainboard/asus/p8h61-m_lx/acpi/platform.asl
index 81591d6..2238209 100644
--- a/src/mainboard/asus/p8h61-m_lx/acpi/platform.asl
+++ b/src/mainboard/asus/p8h61-m_lx/acpi/platform.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 Method(_WAK, 1)
 {
diff --git a/src/mainboard/asus/p8h61-m_lx/acpi/superio.asl b/src/mainboard/asus/p8h61-m_lx/acpi/superio.asl
index 43ab19a..8cb29ea 100644
--- a/src/mainboard/asus/p8h61-m_lx/acpi/superio.asl
+++ b/src/mainboard/asus/p8h61-m_lx/acpi/superio.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #define SUPERIO_DEV		SIO0
 #define SUPERIO_PNP_BASE	0x2e
diff --git a/src/mainboard/asus/p8h61-m_lx/acpi_tables.c b/src/mainboard/asus/p8h61-m_lx/acpi_tables.c
index f97249d..66cd5fc 100644
--- a/src/mainboard/asus/p8h61-m_lx/acpi_tables.c
+++ b/src/mainboard/asus/p8h61-m_lx/acpi_tables.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <southbridge/intel/bd82x6x/nvs.h>
 
diff --git a/src/mainboard/asus/p8h61-m_lx/dsdt.asl b/src/mainboard/asus/p8h61-m_lx/dsdt.asl
index eec65b8..9e787ce 100644
--- a/src/mainboard/asus/p8h61-m_lx/dsdt.asl
+++ b/src/mainboard/asus/p8h61-m_lx/dsdt.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <acpi/acpi.h>
 DefinitionBlock(
diff --git a/src/mainboard/asus/p8h61-m_lx/early_init.c b/src/mainboard/asus/p8h61-m_lx/early_init.c
index 4021781..970b8e9 100644
--- a/src/mainboard/asus/p8h61-m_lx/early_init.c
+++ b/src/mainboard/asus/p8h61-m_lx/early_init.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <bootblock_common.h>
 #include <device/dram/ddr3.h>
diff --git a/src/mainboard/asus/p8h61-m_lx/gpio.c b/src/mainboard/asus/p8h61-m_lx/gpio.c
index e02359f..6bcab02 100644
--- a/src/mainboard/asus/p8h61-m_lx/gpio.c
+++ b/src/mainboard/asus/p8h61-m_lx/gpio.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <southbridge/intel/common/gpio.h>
 
diff --git a/src/mainboard/asus/p8h61-m_lx/hda_verb.c b/src/mainboard/asus/p8h61-m_lx/hda_verb.c
index 417ae1b..d99291e 100644
--- a/src/mainboard/asus/p8h61-m_lx/hda_verb.c
+++ b/src/mainboard/asus/p8h61-m_lx/hda_verb.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <stdint.h>
 #include <device/azalia_device.h>
diff --git a/src/mainboard/asus/p8h61-m_lx/mainboard.c b/src/mainboard/asus/p8h61-m_lx/mainboard.c
index 01b70e0..fe670ef 100644
--- a/src/mainboard/asus/p8h61-m_lx/mainboard.c
+++ b/src/mainboard/asus/p8h61-m_lx/mainboard.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <device/device.h>
 #include <drivers/intel/gma/int15.h>
diff --git a/src/mainboard/asus/p8h61-m_pro/acpi/superio.asl b/src/mainboard/asus/p8h61-m_pro/acpi/superio.asl
index a6fe5a7..490e449 100644
--- a/src/mainboard/asus/p8h61-m_pro/acpi/superio.asl
+++ b/src/mainboard/asus/p8h61-m_pro/acpi/superio.asl
@@ -1,15 +1,4 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <drivers/pc80/pc/ps2_controller.asl>
diff --git a/src/mainboard/asus/p8z77-m_pro/acpi/platform.asl b/src/mainboard/asus/p8z77-m_pro/acpi/platform.asl
index 89f8f73..17460c7 100644
--- a/src/mainboard/asus/p8z77-m_pro/acpi/platform.asl
+++ b/src/mainboard/asus/p8z77-m_pro/acpi/platform.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 Method(_WAK,1)
 {
diff --git a/src/mainboard/asus/p8z77-m_pro/acpi/superio.asl b/src/mainboard/asus/p8z77-m_pro/acpi/superio.asl
index a6fe5a7..490e449 100644
--- a/src/mainboard/asus/p8z77-m_pro/acpi/superio.asl
+++ b/src/mainboard/asus/p8z77-m_pro/acpi/superio.asl
@@ -1,15 +1,4 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <drivers/pc80/pc/ps2_controller.asl>
diff --git a/src/mainboard/asus/p8z77-m_pro/acpi_tables.c b/src/mainboard/asus/p8z77-m_pro/acpi_tables.c
index 3f69f12..65b59e8 100644
--- a/src/mainboard/asus/p8z77-m_pro/acpi_tables.c
+++ b/src/mainboard/asus/p8z77-m_pro/acpi_tables.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of
- * the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <southbridge/intel/bd82x6x/nvs.h>
 
diff --git a/src/mainboard/biostar/am1ml/irq_tables.c b/src/mainboard/biostar/am1ml/irq_tables.c
index b4f09f9..29c79a9 100644
--- a/src/mainboard/biostar/am1ml/irq_tables.c
+++ b/src/mainboard/biostar/am1ml/irq_tables.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 
 #include <arch/pirq_routing.h>
diff --git a/src/mainboard/emulation/qemu-armv7/mainboard.c b/src/mainboard/emulation/qemu-armv7/mainboard.c
index b7d3397..f591410 100644
--- a/src/mainboard/emulation/qemu-armv7/mainboard.c
+++ b/src/mainboard/emulation/qemu-armv7/mainboard.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 or, at your option, any later
- * version of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <console/console.h>
 #include <device/device.h>
diff --git a/src/mainboard/emulation/qemu-i440fx/fw_cfg_if.h b/src/mainboard/emulation/qemu-i440fx/fw_cfg_if.h
index d089898..d4aae59 100644
--- a/src/mainboard/emulation/qemu-i440fx/fw_cfg_if.h
+++ b/src/mainboard/emulation/qemu-i440fx/fw_cfg_if.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /*
  * These are the qemu firmware config interface defines and structs.
diff --git a/src/mainboard/foxconn/d41s/early_init.c b/src/mainboard/foxconn/d41s/early_init.c
index c31860d..ba0b7ee 100644
--- a/src/mainboard/foxconn/d41s/early_init.c
+++ b/src/mainboard/foxconn/d41s/early_init.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <bootblock_common.h>
 #include <southbridge/intel/i82801gx/i82801gx.h>
diff --git a/src/mainboard/foxconn/g41s-k/early_init.c b/src/mainboard/foxconn/g41s-k/early_init.c
index 731f622..3b41232 100644
--- a/src/mainboard/foxconn/g41s-k/early_init.c
+++ b/src/mainboard/foxconn/g41s-k/early_init.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <bootblock_common.h>
 #include <northbridge/intel/x4x/x4x.h>
diff --git a/src/mainboard/foxconn/g41s-k/hda_verb.c b/src/mainboard/foxconn/g41s-k/hda_verb.c
index 98bce49..08cff2f 100644
--- a/src/mainboard/foxconn/g41s-k/hda_verb.c
+++ b/src/mainboard/foxconn/g41s-k/hda_verb.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <device/azalia_device.h>
 
diff --git a/src/mainboard/foxconn/g41s-k/variants/g41m/acpi/ich7_pci_irqs.asl b/src/mainboard/foxconn/g41s-k/variants/g41m/acpi/ich7_pci_irqs.asl
index ac6fcbe..9410dd7 100644
--- a/src/mainboard/foxconn/g41s-k/variants/g41m/acpi/ich7_pci_irqs.asl
+++ b/src/mainboard/foxconn/g41s-k/variants/g41m/acpi/ich7_pci_irqs.asl
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of the License.
-m *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 /*
  * This is board specific information:
diff --git a/src/mainboard/gigabyte/ga-g41m-es2l/early_init.c b/src/mainboard/gigabyte/ga-g41m-es2l/early_init.c
index 476a1aa..f343bb7 100644
--- a/src/mainboard/gigabyte/ga-g41m-es2l/early_init.c
+++ b/src/mainboard/gigabyte/ga-g41m-es2l/early_init.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <bootblock_common.h>
 #include <device/pci_ops.h>
diff --git a/src/mainboard/gigabyte/ga-g41m-es2l/hda_verb.c b/src/mainboard/gigabyte/ga-g41m-es2l/hda_verb.c
index bea28ed..86339d3 100644
--- a/src/mainboard/gigabyte/ga-g41m-es2l/hda_verb.c
+++ b/src/mainboard/gigabyte/ga-g41m-es2l/hda_verb.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <device/azalia_device.h>
 
diff --git a/src/mainboard/google/cheza/board.h b/src/mainboard/google/cheza/board.h
index 528096f..62d176e 100644
--- a/src/mainboard/google/cheza/board.h
+++ b/src/mainboard/google/cheza/board.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #ifndef __COREBOOT_SRC_MAINBOARD_GOOGLE_CHEZA_BOARD_H
 #define __COREBOOT_SRC_MAINBOARD_GOOGLE_CHEZA_BOARD_H
diff --git a/src/mainboard/google/cheza/bootblock.c b/src/mainboard/google/cheza/bootblock.c
index b6f9912..f056fc4 100644
--- a/src/mainboard/google/cheza/bootblock.c
+++ b/src/mainboard/google/cheza/bootblock.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <bootblock_common.h>
 #include "board.h"
diff --git a/src/mainboard/google/cheza/chromeos.c b/src/mainboard/google/cheza/chromeos.c
index 227370c..12ee07f 100644
--- a/src/mainboard/google/cheza/chromeos.c
+++ b/src/mainboard/google/cheza/chromeos.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <boot/coreboot_tables.h>
 #include <bootmode.h>
diff --git a/src/mainboard/google/cheza/mainboard.c b/src/mainboard/google/cheza/mainboard.c
index 1e38034..601cff1 100644
--- a/src/mainboard/google/cheza/mainboard.c
+++ b/src/mainboard/google/cheza/mainboard.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <device/device.h>
 #include <gpio.h>
diff --git a/src/mainboard/google/cheza/memlayout.ld b/src/mainboard/google/cheza/memlayout.ld
index 6bb1739..24c698f 100644
--- a/src/mainboard/google/cheza/memlayout.ld
+++ b/src/mainboard/google/cheza/memlayout.ld
@@ -1,14 +1,4 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
  #include <soc/memlayout.ld>
diff --git a/src/mainboard/google/cheza/romstage.c b/src/mainboard/google/cheza/romstage.c
index bcb65d5..0ca987c 100644
--- a/src/mainboard/google/cheza/romstage.c
+++ b/src/mainboard/google/cheza/romstage.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <arch/stages.h>
 #include <soc/usb.h>
diff --git a/src/mainboard/google/gale/bootblock.c b/src/mainboard/google/gale/bootblock.c
index d919839..343fe65 100644
--- a/src/mainboard/google/gale/bootblock.c
+++ b/src/mainboard/google/gale/bootblock.c
@@ -1,14 +1,4 @@
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <bootblock_common.h>
 #include <console/console.h>
diff --git a/src/mainboard/google/gale/mmu.c b/src/mainboard/google/gale/mmu.c
index 94c5fa6..3b9917c 100644
--- a/src/mainboard/google/gale/mmu.c
+++ b/src/mainboard/google/gale/mmu.c
@@ -1,14 +1,4 @@
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <arch/cache.h>
 #include <symbols.h>
diff --git a/src/mainboard/google/gale/mmu.h b/src/mainboard/google/gale/mmu.h
index a07e4bc..8f6b547 100644
--- a/src/mainboard/google/gale/mmu.h
+++ b/src/mainboard/google/gale/mmu.h
@@ -1,14 +1,4 @@
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <types.h>
 
diff --git a/src/mainboard/google/mistral/bootblock.c b/src/mainboard/google/mistral/bootblock.c
index bbf5d68..302ef4f 100644
--- a/src/mainboard/google/mistral/bootblock.c
+++ b/src/mainboard/google/mistral/bootblock.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <bootblock_common.h>
 
diff --git a/src/mainboard/google/mistral/chromeos.c b/src/mainboard/google/mistral/chromeos.c
index 34354ae..ce0d0c3 100644
--- a/src/mainboard/google/mistral/chromeos.c
+++ b/src/mainboard/google/mistral/chromeos.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <boot/coreboot_tables.h>
 
diff --git a/src/mainboard/google/mistral/mainboard.c b/src/mainboard/google/mistral/mainboard.c
index 63095de..f853530 100644
--- a/src/mainboard/google/mistral/mainboard.c
+++ b/src/mainboard/google/mistral/mainboard.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <device/device.h>
 #include <vendorcode/google/chromeos/chromeos.h>
diff --git a/src/mainboard/google/mistral/memlayout.ld b/src/mainboard/google/mistral/memlayout.ld
index 6cd2717..e2e5f15 100644
--- a/src/mainboard/google/mistral/memlayout.ld
+++ b/src/mainboard/google/mistral/memlayout.ld
@@ -1,14 +1,4 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <soc/memlayout.ld>
diff --git a/src/mainboard/google/mistral/romstage.c b/src/mainboard/google/mistral/romstage.c
index 1dc7c6c..1da791b 100644
--- a/src/mainboard/google/mistral/romstage.c
+++ b/src/mainboard/google/mistral/romstage.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <arch/stages.h>
 #include <soc/usb.h>
diff --git a/src/mainboard/google/storm/bootblock.c b/src/mainboard/google/storm/bootblock.c
index 186673c..e7ff6a3 100644
--- a/src/mainboard/google/storm/bootblock.c
+++ b/src/mainboard/google/storm/bootblock.c
@@ -1,14 +1,4 @@
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <bootblock_common.h>
 #include <console/console.h>
diff --git a/src/mainboard/google/storm/mmu.c b/src/mainboard/google/storm/mmu.c
index 8d0a166..37b4654 100644
--- a/src/mainboard/google/storm/mmu.c
+++ b/src/mainboard/google/storm/mmu.c
@@ -1,14 +1,4 @@
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <arch/cache.h>
 #include <soc/soc_services.h>
diff --git a/src/mainboard/google/storm/mmu.h b/src/mainboard/google/storm/mmu.h
index 1bf7e4f..49f3b48 100644
--- a/src/mainboard/google/storm/mmu.h
+++ b/src/mainboard/google/storm/mmu.h
@@ -1,14 +1,4 @@
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <types.h>
 
diff --git a/src/mainboard/google/trogdor/board.h b/src/mainboard/google/trogdor/board.h
index aef11d6..8d03551 100644
--- a/src/mainboard/google/trogdor/board.h
+++ b/src/mainboard/google/trogdor/board.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #ifndef _COREBOOT_SRC_MAINBOARD_GOOGLE_TROGDOR_BOARD_H_
 #define _COREBOOT_SRC_MAINBOARD_GOOGLE_TROGDOR_BOARD_H_
diff --git a/src/mainboard/google/trogdor/bootblock.c b/src/mainboard/google/trogdor/bootblock.c
index b6f9912..f056fc4 100644
--- a/src/mainboard/google/trogdor/bootblock.c
+++ b/src/mainboard/google/trogdor/bootblock.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <bootblock_common.h>
 #include "board.h"
diff --git a/src/mainboard/google/trogdor/chromeos.c b/src/mainboard/google/trogdor/chromeos.c
index 227370c..12ee07f 100644
--- a/src/mainboard/google/trogdor/chromeos.c
+++ b/src/mainboard/google/trogdor/chromeos.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <boot/coreboot_tables.h>
 #include <bootmode.h>
diff --git a/src/mainboard/google/trogdor/mainboard.c b/src/mainboard/google/trogdor/mainboard.c
index 61fb190..9da62bb 100644
--- a/src/mainboard/google/trogdor/mainboard.c
+++ b/src/mainboard/google/trogdor/mainboard.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <device/device.h>
 #include <device/mmio.h>
diff --git a/src/mainboard/google/trogdor/memlayout.ld b/src/mainboard/google/trogdor/memlayout.ld
index 6cd2717..e2e5f15 100644
--- a/src/mainboard/google/trogdor/memlayout.ld
+++ b/src/mainboard/google/trogdor/memlayout.ld
@@ -1,14 +1,4 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <soc/memlayout.ld>
diff --git a/src/mainboard/google/trogdor/romstage.c b/src/mainboard/google/trogdor/romstage.c
index 226546a..cf3e08a 100644
--- a/src/mainboard/google/trogdor/romstage.c
+++ b/src/mainboard/google/trogdor/romstage.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <arch/stages.h>
 #include <soc/usb.h>
diff --git a/src/mainboard/hp/pavilion_m6_1035dx/acpi/ec.asl b/src/mainboard/hp/pavilion_m6_1035dx/acpi/ec.asl
index 3dc2ef2..0c11261 100644
--- a/src/mainboard/hp/pavilion_m6_1035dx/acpi/ec.asl
+++ b/src/mainboard/hp/pavilion_m6_1035dx/acpi/ec.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /* Defines EC bits specific to the mainboard, needed by EC ASL */
 #include "mainboard.h"
diff --git a/src/mainboard/hp/pavilion_m6_1035dx/ec.c b/src/mainboard/hp/pavilion_m6_1035dx/ec.c
index 3dd7f9a..50f5dd3 100644
--- a/src/mainboard/hp/pavilion_m6_1035dx/ec.c
+++ b/src/mainboard/hp/pavilion_m6_1035dx/ec.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include "ec.h"
 #include <ec/compal/ene932/ec.h>
diff --git a/src/mainboard/hp/pavilion_m6_1035dx/ec.h b/src/mainboard/hp/pavilion_m6_1035dx/ec.h
index aab96f4..b8920be 100644
--- a/src/mainboard/hp/pavilion_m6_1035dx/ec.h
+++ b/src/mainboard/hp/pavilion_m6_1035dx/ec.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef _MAINBOARD_HP_PAVILION_M6_1035DX_EC_H
 #define _MAINBOARD_HP_PAVILION_M6_1035DX_EC_H
diff --git a/src/mainboard/hp/pavilion_m6_1035dx/mainboard.h b/src/mainboard/hp/pavilion_m6_1035dx/mainboard.h
index 6ff3c1e..07074e6 100644
--- a/src/mainboard/hp/pavilion_m6_1035dx/mainboard.h
+++ b/src/mainboard/hp/pavilion_m6_1035dx/mainboard.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /*
  * "The way things are connected" and a few setup options
diff --git a/src/mainboard/hp/pavilion_m6_1035dx/mainboard_smi.c b/src/mainboard/hp/pavilion_m6_1035dx/mainboard_smi.c
index 0e23b1d..5a79d36 100644
--- a/src/mainboard/hp/pavilion_m6_1035dx/mainboard_smi.c
+++ b/src/mainboard/hp/pavilion_m6_1035dx/mainboard_smi.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /*
  * SMI handler -- mostly takes care of SMIs from the EC
diff --git a/src/mainboard/intel/apollolake_rvp/dsdt.asl b/src/mainboard/intel/apollolake_rvp/dsdt.asl
index 648e9f9..e63de17 100644
--- a/src/mainboard/intel/apollolake_rvp/dsdt.asl
+++ b/src/mainboard/intel/apollolake_rvp/dsdt.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <acpi/acpi.h>
 DefinitionBlock(
diff --git a/src/mainboard/intel/apollolake_rvp/romstage.c b/src/mainboard/intel/apollolake_rvp/romstage.c
index 7d625c1..3280874 100644
--- a/src/mainboard/intel/apollolake_rvp/romstage.c
+++ b/src/mainboard/intel/apollolake_rvp/romstage.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <soc/romstage.h>
 #include <string.h>
diff --git a/src/mainboard/intel/d510mo/early_init.c b/src/mainboard/intel/d510mo/early_init.c
index 29f00b3..2f07a70 100644
--- a/src/mainboard/intel/d510mo/early_init.c
+++ b/src/mainboard/intel/d510mo/early_init.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <bootblock_common.h>
 #include <device/pci_ops.h>
diff --git a/src/mainboard/intel/dg41wv/early_init.c b/src/mainboard/intel/dg41wv/early_init.c
index 035ad9b..342adf4 100644
--- a/src/mainboard/intel/dg41wv/early_init.c
+++ b/src/mainboard/intel/dg41wv/early_init.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <bootblock_common.h>
 #include <device/pnp_ops.h>
diff --git a/src/mainboard/intel/dg41wv/hda_verb.c b/src/mainboard/intel/dg41wv/hda_verb.c
index 4e1418c..de192a3 100644
--- a/src/mainboard/intel/dg41wv/hda_verb.c
+++ b/src/mainboard/intel/dg41wv/hda_verb.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <device/azalia_device.h>
 
diff --git a/src/mainboard/intel/dg43gt/early_init.c b/src/mainboard/intel/dg43gt/early_init.c
index fbec787..cb93ed8 100644
--- a/src/mainboard/intel/dg43gt/early_init.c
+++ b/src/mainboard/intel/dg43gt/early_init.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <bootblock_common.h>
 #include <southbridge/intel/i82801jx/i82801jx.h>
diff --git a/src/mainboard/intel/dg43gt/hda_verb.c b/src/mainboard/intel/dg43gt/hda_verb.c
index a7bd279..ba95df7 100644
--- a/src/mainboard/intel/dg43gt/hda_verb.c
+++ b/src/mainboard/intel/dg43gt/hda_verb.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <device/azalia_device.h>
 
diff --git a/src/mainboard/intel/galileo/vboot.c b/src/mainboard/intel/galileo/vboot.c
index b0f8ae2..4a7f424 100644
--- a/src/mainboard/intel/galileo/vboot.c
+++ b/src/mainboard/intel/galileo/vboot.c
@@ -1,14 +1,4 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but without any warranty; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <bootmode.h>
 #include <device/i2c_simple.h>
diff --git a/src/mainboard/intel/harcuvar/romstage.c b/src/mainboard/intel/harcuvar/romstage.c
index 4331805..f01e2c8 100644
--- a/src/mainboard/intel/harcuvar/romstage.c
+++ b/src/mainboard/intel/harcuvar/romstage.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include "harcuvar_boardid.h"
 #include "gpio.h"
diff --git a/src/mainboard/lenovo/g505s/acpi/ec.asl b/src/mainboard/lenovo/g505s/acpi/ec.asl
index 3dc2ef2..0c11261 100644
--- a/src/mainboard/lenovo/g505s/acpi/ec.asl
+++ b/src/mainboard/lenovo/g505s/acpi/ec.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /* Defines EC bits specific to the mainboard, needed by EC ASL */
 #include "mainboard.h"
diff --git a/src/mainboard/lenovo/g505s/acpi/superio.asl b/src/mainboard/lenovo/g505s/acpi/superio.asl
index 85a0894..264c093 100644
--- a/src/mainboard/lenovo/g505s/acpi/superio.asl
+++ b/src/mainboard/lenovo/g505s/acpi/superio.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /* Defines EC bits specific to the mainboard, needed by EC ASL */
 #include "mainboard.h"
diff --git a/src/mainboard/lenovo/g505s/ec.c b/src/mainboard/lenovo/g505s/ec.c
index 9ddccb8..2a72390 100644
--- a/src/mainboard/lenovo/g505s/ec.c
+++ b/src/mainboard/lenovo/g505s/ec.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include "ec.h"
 #include <ec/compal/ene932/ec.h>
diff --git a/src/mainboard/lenovo/g505s/ec.h b/src/mainboard/lenovo/g505s/ec.h
index f615fcc..dadb971 100644
--- a/src/mainboard/lenovo/g505s/ec.h
+++ b/src/mainboard/lenovo/g505s/ec.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef _MAINBOARD_LENOVO_G505S_EC_H
 #define _MAINBOARD_LENOVO_G505S_EC_H
diff --git a/src/mainboard/lenovo/g505s/mainboard.h b/src/mainboard/lenovo/g505s/mainboard.h
index 02ddb27..6646b62 100644
--- a/src/mainboard/lenovo/g505s/mainboard.h
+++ b/src/mainboard/lenovo/g505s/mainboard.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /*
  * "The way things are connected" and a few setup options
diff --git a/src/mainboard/lenovo/g505s/mainboard_smi.c b/src/mainboard/lenovo/g505s/mainboard_smi.c
index 0e23b1d..5a79d36 100644
--- a/src/mainboard/lenovo/g505s/mainboard_smi.c
+++ b/src/mainboard/lenovo/g505s/mainboard_smi.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /*
  * SMI handler -- mostly takes care of SMIs from the EC
diff --git a/src/mainboard/lenovo/s230u/ec.h b/src/mainboard/lenovo/s230u/ec.h
index 836b2d8..dfb7e8f 100644
--- a/src/mainboard/lenovo/s230u/ec.h
+++ b/src/mainboard/lenovo/s230u/ec.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef _MAINBOARD_LENOVO_S230U_EC_H
 #define _MAINBOARD_LENOVO_S230U_EC_H
diff --git a/src/mainboard/lenovo/t410/hda_verb.c b/src/mainboard/lenovo/t410/hda_verb.c
index 828a13f..d1d3654 100644
--- a/src/mainboard/lenovo/t410/hda_verb.c
+++ b/src/mainboard/lenovo/t410/hda_verb.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of the License,
- * or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <device/azalia_device.h>
 
diff --git a/src/mainboard/lenovo/t440p/acpi/ec.asl b/src/mainboard/lenovo/t440p/acpi/ec.asl
index 3dbe6fe..8b7af641 100644
--- a/src/mainboard/lenovo/t440p/acpi/ec.asl
+++ b/src/mainboard/lenovo/t440p/acpi/ec.asl
@@ -1,15 +1,4 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <ec/lenovo/h8/acpi/ec.asl>
diff --git a/src/mainboard/lenovo/t440p/acpi/platform.asl b/src/mainboard/lenovo/t440p/acpi/platform.asl
index a2c2e00..79be356 100644
--- a/src/mainboard/lenovo/t440p/acpi/platform.asl
+++ b/src/mainboard/lenovo/t440p/acpi/platform.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 Method(_WAK,1)
 {
diff --git a/src/mainboard/lenovo/t440p/acpi/superio.asl b/src/mainboard/lenovo/t440p/acpi/superio.asl
index a6fe5a7..490e449 100644
--- a/src/mainboard/lenovo/t440p/acpi/superio.asl
+++ b/src/mainboard/lenovo/t440p/acpi/superio.asl
@@ -1,15 +1,4 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <drivers/pc80/pc/ps2_controller.asl>
diff --git a/src/mainboard/lenovo/t440p/dsdt.asl b/src/mainboard/lenovo/t440p/dsdt.asl
index 718cad1..c59c119 100644
--- a/src/mainboard/lenovo/t440p/dsdt.asl
+++ b/src/mainboard/lenovo/t440p/dsdt.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #define BRIGHTNESS_UP \_SB.PCI0.GFX0.INCB
 #define BRIGHTNESS_DOWN \_SB.PCI0.GFX0.DECB
diff --git a/src/mainboard/lenovo/t440p/mainboard.c b/src/mainboard/lenovo/t440p/mainboard.c
index 31552b8..27d4abb 100644
--- a/src/mainboard/lenovo/t440p/mainboard.c
+++ b/src/mainboard/lenovo/t440p/mainboard.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <device/device.h>
 #include <drivers/intel/gma/int15.h>
diff --git a/src/mainboard/lenovo/thinkcentre_a58/early_init.c b/src/mainboard/lenovo/thinkcentre_a58/early_init.c
index 70d70f7..1ab26859 100644
--- a/src/mainboard/lenovo/thinkcentre_a58/early_init.c
+++ b/src/mainboard/lenovo/thinkcentre_a58/early_init.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <bootblock_common.h>
 #include <northbridge/intel/x4x/x4x.h>
diff --git a/src/mainboard/lenovo/thinkcentre_a58/hda_verb.c b/src/mainboard/lenovo/thinkcentre_a58/hda_verb.c
index 6074f5f..357de1e 100644
--- a/src/mainboard/lenovo/thinkcentre_a58/hda_verb.c
+++ b/src/mainboard/lenovo/thinkcentre_a58/hda_verb.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <device/azalia_device.h>
 
diff --git a/src/mainboard/lenovo/x201/hda_verb.c b/src/mainboard/lenovo/x201/hda_verb.c
index fa01ebf..a8e9b38 100644
--- a/src/mainboard/lenovo/x201/hda_verb.c
+++ b/src/mainboard/lenovo/x201/hda_verb.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of the License,
- * or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <device/azalia_device.h>
 
diff --git a/src/mainboard/msi/ms7707/acpi/platform.asl b/src/mainboard/msi/ms7707/acpi/platform.asl
index 89f8f73..17460c7 100644
--- a/src/mainboard/msi/ms7707/acpi/platform.asl
+++ b/src/mainboard/msi/ms7707/acpi/platform.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 Method(_WAK,1)
 {
diff --git a/src/mainboard/msi/ms7707/dsdt.asl b/src/mainboard/msi/ms7707/dsdt.asl
index 7432de8..7a4e8c5 100644
--- a/src/mainboard/msi/ms7707/dsdt.asl
+++ b/src/mainboard/msi/ms7707/dsdt.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <acpi/acpi.h>
 DefinitionBlock(
diff --git a/src/mainboard/ocp/tiogapass/acpi/platform.asl b/src/mainboard/ocp/tiogapass/acpi/platform.asl
index 312ae70..ec6772b 100644
--- a/src/mainboard/ocp/tiogapass/acpi/platform.asl
+++ b/src/mainboard/ocp/tiogapass/acpi/platform.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /* Enable ACPI _SWS methods */
 #include <soc/intel/common/acpi/acpi_wake_source.asl>
diff --git a/src/mainboard/ocp/tiogapass/dsdt.asl b/src/mainboard/ocp/tiogapass/dsdt.asl
index fe52ea1..f2386ac 100644
--- a/src/mainboard/ocp/tiogapass/dsdt.asl
+++ b/src/mainboard/ocp/tiogapass/dsdt.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 
 #include <acpi/acpi.h>
diff --git a/src/mainboard/ocp/tiogapass/fadt.c b/src/mainboard/ocp/tiogapass/fadt.c
index 1036b020..a440e0d 100644
--- a/src/mainboard/ocp/tiogapass/fadt.c
+++ b/src/mainboard/ocp/tiogapass/fadt.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <acpi/acpi.h>
 #include <soc/acpi.h>
diff --git a/src/mainboard/ocp/tiogapass/include/skxsp_tp_iio.h b/src/mainboard/ocp/tiogapass/include/skxsp_tp_iio.h
index b43260f..b81a8f8 100644
--- a/src/mainboard/ocp/tiogapass/include/skxsp_tp_iio.h
+++ b/src/mainboard/ocp/tiogapass/include/skxsp_tp_iio.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef _SKXSP_TP_IIO_H_
 #define _SKXSP_TP_IIO_H_
diff --git a/src/mainboard/ocp/tiogapass/ramstage.c b/src/mainboard/ocp/tiogapass/ramstage.c
index 27d2a17..0a32b72 100644
--- a/src/mainboard/ocp/tiogapass/ramstage.c
+++ b/src/mainboard/ocp/tiogapass/ramstage.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 #include <soc/ramstage.h>
 #include <bootstate.h>
 #include <gpio.h>
diff --git a/src/mainboard/ocp/tiogapass/romstage.c b/src/mainboard/ocp/tiogapass/romstage.c
index 3af6a2e..597475d 100644
--- a/src/mainboard/ocp/tiogapass/romstage.c
+++ b/src/mainboard/ocp/tiogapass/romstage.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <fsp/api.h>
 #include <FspmUpd.h>
diff --git a/src/mainboard/packardbell/ms2290/hda_verb.c b/src/mainboard/packardbell/ms2290/hda_verb.c
index 8121f874..1697cde 100644
--- a/src/mainboard/packardbell/ms2290/hda_verb.c
+++ b/src/mainboard/packardbell/ms2290/hda_verb.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of the License,
- * or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <device/azalia_device.h>
 
diff --git a/src/mainboard/sapphire/pureplatinumh61/acpi_tables.c b/src/mainboard/sapphire/pureplatinumh61/acpi_tables.c
index 436930a..cdc3d99 100644
--- a/src/mainboard/sapphire/pureplatinumh61/acpi_tables.c
+++ b/src/mainboard/sapphire/pureplatinumh61/acpi_tables.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <southbridge/intel/bd82x6x/nvs.h>
 
diff --git a/src/mainboard/sapphire/pureplatinumh61/dsdt.asl b/src/mainboard/sapphire/pureplatinumh61/dsdt.asl
index 9e704c8..0a05ca2 100644
--- a/src/mainboard/sapphire/pureplatinumh61/dsdt.asl
+++ b/src/mainboard/sapphire/pureplatinumh61/dsdt.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <acpi/acpi.h>
 DefinitionBlock(
diff --git a/src/mainboard/sapphire/pureplatinumh61/early_init.c b/src/mainboard/sapphire/pureplatinumh61/early_init.c
index 39ca7e7..5f6e266 100644
--- a/src/mainboard/sapphire/pureplatinumh61/early_init.c
+++ b/src/mainboard/sapphire/pureplatinumh61/early_init.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <stdint.h>
 #include <device/pci_ops.h>
diff --git a/src/mainboard/sapphire/pureplatinumh61/gpio.c b/src/mainboard/sapphire/pureplatinumh61/gpio.c
index c4d456d..9841c38 100644
--- a/src/mainboard/sapphire/pureplatinumh61/gpio.c
+++ b/src/mainboard/sapphire/pureplatinumh61/gpio.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <southbridge/intel/common/gpio.h>
 
diff --git a/src/mainboard/sapphire/pureplatinumh61/hda_verb.c b/src/mainboard/sapphire/pureplatinumh61/hda_verb.c
index c046795..2e851d9 100644
--- a/src/mainboard/sapphire/pureplatinumh61/hda_verb.c
+++ b/src/mainboard/sapphire/pureplatinumh61/hda_verb.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <device/azalia_device.h>
 
diff --git a/src/mainboard/sapphire/pureplatinumh61/mainboard.c b/src/mainboard/sapphire/pureplatinumh61/mainboard.c
index 290c55f..371c525 100644
--- a/src/mainboard/sapphire/pureplatinumh61/mainboard.c
+++ b/src/mainboard/sapphire/pureplatinumh61/mainboard.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <device/device.h>
 #include <drivers/intel/gma/int15.h>
diff --git a/src/mainboard/scaleway/tagada/romstage.c b/src/mainboard/scaleway/tagada/romstage.c
index c02a7b9..9fbbc38 100644
--- a/src/mainboard/scaleway/tagada/romstage.c
+++ b/src/mainboard/scaleway/tagada/romstage.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include "gpio.h"
 #include <console/console.h>
diff --git a/src/mainboard/supermicro/x10slm-f/acpi/platform.asl b/src/mainboard/supermicro/x10slm-f/acpi/platform.asl
index 81591d6..2238209 100644
--- a/src/mainboard/supermicro/x10slm-f/acpi/platform.asl
+++ b/src/mainboard/supermicro/x10slm-f/acpi/platform.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 Method(_WAK, 1)
 {
diff --git a/src/mainboard/supermicro/x10slm-f/acpi/superio.asl b/src/mainboard/supermicro/x10slm-f/acpi/superio.asl
index 0c9f46b..318b6bf 100644
--- a/src/mainboard/supermicro/x10slm-f/acpi/superio.asl
+++ b/src/mainboard/supermicro/x10slm-f/acpi/superio.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #define SUPERIO_DEV		SIO0
 #define SUPERIO_PNP_BASE	0x2e
diff --git a/src/mainboard/supermicro/x10slm-f/acpi_tables.c b/src/mainboard/supermicro/x10slm-f/acpi_tables.c
index 4c60061..b40bb95 100644
--- a/src/mainboard/supermicro/x10slm-f/acpi_tables.c
+++ b/src/mainboard/supermicro/x10slm-f/acpi_tables.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <southbridge/intel/lynxpoint/nvs.h>
 
diff --git a/src/mainboard/supermicro/x10slm-f/bootblock.c b/src/mainboard/supermicro/x10slm-f/bootblock.c
index ff09a11..8019ecb 100644
--- a/src/mainboard/supermicro/x10slm-f/bootblock.c
+++ b/src/mainboard/supermicro/x10slm-f/bootblock.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <device/pnp_ops.h>
 #include <superio/nuvoton/common/nuvoton.h>
diff --git a/src/mainboard/supermicro/x10slm-f/dsdt.asl b/src/mainboard/supermicro/x10slm-f/dsdt.asl
index 96e6227..f3a3beb 100644
--- a/src/mainboard/supermicro/x10slm-f/dsdt.asl
+++ b/src/mainboard/supermicro/x10slm-f/dsdt.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <acpi/acpi.h>
 
diff --git a/src/mainboard/supermicro/x10slm-f/gpio.c b/src/mainboard/supermicro/x10slm-f/gpio.c
index 8758fab..deaad67 100644
--- a/src/mainboard/supermicro/x10slm-f/gpio.c
+++ b/src/mainboard/supermicro/x10slm-f/gpio.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <southbridge/intel/common/gpio.h>
 
diff --git a/src/mainboard/supermicro/x10slm-f/hda_verb.c b/src/mainboard/supermicro/x10slm-f/hda_verb.c
index 35c420c..72b34e3 100644
--- a/src/mainboard/supermicro/x10slm-f/hda_verb.c
+++ b/src/mainboard/supermicro/x10slm-f/hda_verb.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <stdint.h>
 #include <device/azalia_device.h>
diff --git a/src/mainboard/supermicro/x10slm-f/mainboard.c b/src/mainboard/supermicro/x10slm-f/mainboard.c
index 27d9ec7..1380cd1 100644
--- a/src/mainboard/supermicro/x10slm-f/mainboard.c
+++ b/src/mainboard/supermicro/x10slm-f/mainboard.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <console/console.h>
 #include <device/device.h>
diff --git a/src/mainboard/ti/beaglebone/leds.c b/src/mainboard/ti/beaglebone/leds.c
index abad718..99ae6d9 100644
--- a/src/mainboard/ti/beaglebone/leds.c
+++ b/src/mainboard/ti/beaglebone/leds.c
@@ -1,14 +1,4 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <assert.h>
 #include <cpu/ti/am335x/gpio.h>
diff --git a/src/mainboard/ti/beaglebone/leds.h b/src/mainboard/ti/beaglebone/leds.h
index 6a2d3ec..49404f6 100644
--- a/src/mainboard/ti/beaglebone/leds.h
+++ b/src/mainboard/ti/beaglebone/leds.h
@@ -1,14 +1,4 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef __MAINBOARD_TI_BEAGLEBONE_LEDS_H__
 #define __MAINBOARD_TI_BEAGLEBONE_LEDS_H__
diff --git a/src/northbridge/intel/e7505/e7505.h b/src/northbridge/intel/e7505/e7505.h
index 574801c..fe80bfd 100644
--- a/src/northbridge/intel/e7505/e7505.h
+++ b/src/northbridge/intel/e7505/e7505.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /*
  * e7505.h: PCI configuration space for the Intel E7501 memory controller
diff --git a/src/northbridge/intel/ironlake/raminit.c b/src/northbridge/intel/ironlake/raminit.c
index daaa96a..33b2256 100644
--- a/src/northbridge/intel/ironlake/raminit.c
+++ b/src/northbridge/intel/ironlake/raminit.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <console/console.h>
 #include <commonlib/helpers.h>
diff --git a/src/northbridge/intel/ironlake/raminit_tables.c b/src/northbridge/intel/ironlake/raminit_tables.c
index 3abd4c0..721e00b 100644
--- a/src/northbridge/intel/ironlake/raminit_tables.c
+++ b/src/northbridge/intel/ironlake/raminit_tables.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include "raminit_tables.h"
 
diff --git a/src/northbridge/intel/ironlake/raminit_tables.h b/src/northbridge/intel/ironlake/raminit_tables.h
index 05a8c35..822cb19 100644
--- a/src/northbridge/intel/ironlake/raminit_tables.h
+++ b/src/northbridge/intel/ironlake/raminit_tables.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef RAMINIT_TABLES_H
 #define RAMINIT_TABLES_H
diff --git a/src/northbridge/intel/pineview/early_init.c b/src/northbridge/intel/pineview/early_init.c
index 588f0fa..9c0b46e 100644
--- a/src/northbridge/intel/pineview/early_init.c
+++ b/src/northbridge/intel/pineview/early_init.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <console/console.h>
 #include <device/pci_ops.h>
diff --git a/src/northbridge/intel/pineview/iomap.h b/src/northbridge/intel/pineview/iomap.h
index 310a575..e7472b4 100644
--- a/src/northbridge/intel/pineview/iomap.h
+++ b/src/northbridge/intel/pineview/iomap.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef PINEVIEW_IOMAP_H
 #define PINEVIEW_IOMAP_H
diff --git a/src/northbridge/intel/pineview/pineview.h b/src/northbridge/intel/pineview/pineview.h
index 92bca75..df4232a7 100644
--- a/src/northbridge/intel/pineview/pineview.h
+++ b/src/northbridge/intel/pineview/pineview.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef NORTHBRIDGE_INTEL_PINEVIEW_H
 #define NORTHBRIDGE_INTEL_PINEVIEW_H
diff --git a/src/northbridge/intel/pineview/raminit.c b/src/northbridge/intel/pineview/raminit.c
index 081d1ee..1e1170d 100644
--- a/src/northbridge/intel/pineview/raminit.c
+++ b/src/northbridge/intel/pineview/raminit.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <cf9_reset.h>
 #include <device/mmio.h>
diff --git a/src/northbridge/intel/pineview/raminit.h b/src/northbridge/intel/pineview/raminit.h
index 2662d19..3d52117 100644
--- a/src/northbridge/intel/pineview/raminit.h
+++ b/src/northbridge/intel/pineview/raminit.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef PINEVIEW_RAMINIT_H
 #define PINEVIEW_RAMINIT_H
diff --git a/src/northbridge/intel/x4x/bootblock.c b/src/northbridge/intel/x4x/bootblock.c
index 7ee3fdb..61d987b 100644
--- a/src/northbridge/intel/x4x/bootblock.c
+++ b/src/northbridge/intel/x4x/bootblock.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <arch/bootblock.h>
 #include <device/pci_ops.h>
diff --git a/src/northbridge/intel/x4x/chip.h b/src/northbridge/intel/x4x/chip.h
index 4b853b6..7d40d20 100644
--- a/src/northbridge/intel/x4x/chip.h
+++ b/src/northbridge/intel/x4x/chip.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef NORTHBRIDGE_INTEL_X4X_CHIP_H
 #define NORTHBRIDGE_INTEL_X4X_CHIP_H
diff --git a/src/northbridge/intel/x4x/dq_dqs.c b/src/northbridge/intel/x4x/dq_dqs.c
index bd4a4d6..82f4acd 100644
--- a/src/northbridge/intel/x4x/dq_dqs.c
+++ b/src/northbridge/intel/x4x/dq_dqs.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <device/mmio.h>
 #include <console/console.h>
diff --git a/src/northbridge/intel/x4x/iomap.h b/src/northbridge/intel/x4x/iomap.h
index c2d48a7..06eb746 100644
--- a/src/northbridge/intel/x4x/iomap.h
+++ b/src/northbridge/intel/x4x/iomap.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef X4X_IOMAP_H
 #define X4X_IOMAP_H
diff --git a/src/northbridge/intel/x4x/raminit.c b/src/northbridge/intel/x4x/raminit.c
index 817b789..90d8a44 100644
--- a/src/northbridge/intel/x4x/raminit.c
+++ b/src/northbridge/intel/x4x/raminit.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <device/pci_ops.h>
 #include <cbmem.h>
diff --git a/src/northbridge/intel/x4x/raminit_ddr23.c b/src/northbridge/intel/x4x/raminit_ddr23.c
index 81e6395..e0ce340 100644
--- a/src/northbridge/intel/x4x/raminit_ddr23.c
+++ b/src/northbridge/intel/x4x/raminit_ddr23.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <assert.h>
 #include <stdint.h>
diff --git a/src/northbridge/intel/x4x/raminit_tables.c b/src/northbridge/intel/x4x/raminit_tables.c
index f9ab7df..1f8e97f 100644
--- a/src/northbridge/intel/x4x/raminit_tables.c
+++ b/src/northbridge/intel/x4x/raminit_tables.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <stdint.h>
 #include "x4x.h"
diff --git a/src/northbridge/intel/x4x/rcven.c b/src/northbridge/intel/x4x/rcven.c
index e466eeb..3b59df2 100644
--- a/src/northbridge/intel/x4x/rcven.c
+++ b/src/northbridge/intel/x4x/rcven.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <device/mmio.h>
 #include <console/console.h>
diff --git a/src/northbridge/intel/x4x/romstage.c b/src/northbridge/intel/x4x/romstage.c
index e356066..aebec25 100644
--- a/src/northbridge/intel/x4x/romstage.c
+++ b/src/northbridge/intel/x4x/romstage.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <device/pci_ops.h>
 #include <console/console.h>
diff --git a/src/soc/intel/apollolake/acpi.c b/src/soc/intel/apollolake/acpi.c
index eb8040c..342ca6f 100644
--- a/src/soc/intel/apollolake/acpi.c
+++ b/src/soc/intel/apollolake/acpi.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <acpi/acpi.h>
 #include <acpi/acpigen.h>
diff --git a/src/soc/intel/apollolake/acpi/globalnvs.asl b/src/soc/intel/apollolake/acpi/globalnvs.asl
index 5b4a82a..43258d8 100644
--- a/src/soc/intel/apollolake/acpi/globalnvs.asl
+++ b/src/soc/intel/apollolake/acpi/globalnvs.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /*
  * NOTE: The layout of the GNVS structure below must match the layout in
diff --git a/src/soc/intel/apollolake/acpi/gpio.asl b/src/soc/intel/apollolake/acpi/gpio.asl
index 422bf2d..d1af398 100644
--- a/src/soc/intel/apollolake/acpi/gpio.asl
+++ b/src/soc/intel/apollolake/acpi/gpio.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 #include <soc/gpio.h>
 #include <intelblocks/pcr.h>
 #include <soc/pcr_ids.h>
diff --git a/src/soc/intel/apollolake/acpi/lpss.asl b/src/soc/intel/apollolake/acpi/lpss.asl
index f469417..04fa3135 100644
--- a/src/soc/intel/apollolake/acpi/lpss.asl
+++ b/src/soc/intel/apollolake/acpi/lpss.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 scope (\_SB.PCI0) {
 
diff --git a/src/soc/intel/apollolake/acpi/northbridge.asl b/src/soc/intel/apollolake/acpi/northbridge.asl
index 3148ac6..2cedbd3 100644
--- a/src/soc/intel/apollolake/acpi/northbridge.asl
+++ b/src/soc/intel/apollolake/acpi/northbridge.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 
 Name(_HID, EISAID("PNP0A08"))	/* PCIe */
diff --git a/src/soc/intel/apollolake/acpi/pci_irqs.asl b/src/soc/intel/apollolake/acpi/pci_irqs.asl
index 0373e97..28c7511 100644
--- a/src/soc/intel/apollolake/acpi/pci_irqs.asl
+++ b/src/soc/intel/apollolake/acpi/pci_irqs.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include "soc_int.asl"
 
diff --git a/src/soc/intel/apollolake/acpi/soc_int.asl b/src/soc/intel/apollolake/acpi/soc_int.asl
index e608aa8..cf937aa 100644
--- a/src/soc/intel/apollolake/acpi/soc_int.asl
+++ b/src/soc/intel/apollolake/acpi/soc_int.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef _SOC_INT_DEFINE_ASL_
 #define _SOC_INT_DEFINE_ASL_
diff --git a/src/soc/intel/apollolake/acpi/southbridge.asl b/src/soc/intel/apollolake/acpi/southbridge.asl
index 7d0c94c..abb89ed 100644
--- a/src/soc/intel/apollolake/acpi/southbridge.asl
+++ b/src/soc/intel/apollolake/acpi/southbridge.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <intelblocks/pcr.h>
 #include <soc/gpe.h>
diff --git a/src/soc/intel/apollolake/acpi/xhci_apl_ports.asl b/src/soc/intel/apollolake/acpi/xhci_apl_ports.asl
index c8bd339..cb4caf0 100644
--- a/src/soc/intel/apollolake/acpi/xhci_apl_ports.asl
+++ b/src/soc/intel/apollolake/acpi/xhci_apl_ports.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /* USB2 */
 Device (HS01) { Name (_ADR, 1) }
diff --git a/src/soc/intel/apollolake/acpi/xhci_glk_ports.asl b/src/soc/intel/apollolake/acpi/xhci_glk_ports.asl
index 6692b17..8806b41 100644
--- a/src/soc/intel/apollolake/acpi/xhci_glk_ports.asl
+++ b/src/soc/intel/apollolake/acpi/xhci_glk_ports.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /* USB2 */
 Device (HS01) { Name (_ADR, 1) }
diff --git a/src/soc/intel/apollolake/bootblock/bootblock.c b/src/soc/intel/apollolake/bootblock/bootblock.c
index b389813..a75d2e1 100644
--- a/src/soc/intel/apollolake/bootblock/bootblock.c
+++ b/src/soc/intel/apollolake/bootblock/bootblock.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <bootblock_common.h>
 #include <cpu/x86/pae.h>
diff --git a/src/soc/intel/apollolake/car.c b/src/soc/intel/apollolake/car.c
index c213461..384b441 100644
--- a/src/soc/intel/apollolake/car.c
+++ b/src/soc/intel/apollolake/car.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <assert.h>
 #include <cpu/x86/msr.h>
diff --git a/src/soc/intel/apollolake/chip.c b/src/soc/intel/apollolake/chip.c
index 7e303c7..1048bf9 100644
--- a/src/soc/intel/apollolake/chip.c
+++ b/src/soc/intel/apollolake/chip.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <acpi/acpi.h>
 #include <bootstate.h>
diff --git a/src/soc/intel/apollolake/chip.h b/src/soc/intel/apollolake/chip.h
index 3efd970..a6a4a00 100644
--- a/src/soc/intel/apollolake/chip.h
+++ b/src/soc/intel/apollolake/chip.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef _SOC_APOLLOLAKE_CHIP_H_
 #define _SOC_APOLLOLAKE_CHIP_H_
diff --git a/src/soc/intel/apollolake/cpu.c b/src/soc/intel/apollolake/cpu.c
index 4484413..739990d 100644
--- a/src/soc/intel/apollolake/cpu.c
+++ b/src/soc/intel/apollolake/cpu.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <acpi/acpi.h>
 #include <assert.h>
diff --git a/src/soc/intel/apollolake/fspcar.c b/src/soc/intel/apollolake/fspcar.c
index a9e4ed2..08b4ffd 100644
--- a/src/soc/intel/apollolake/fspcar.c
+++ b/src/soc/intel/apollolake/fspcar.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <FsptUpd.h>
 
diff --git a/src/soc/intel/apollolake/gpio_apl.c b/src/soc/intel/apollolake/gpio_apl.c
index 4a37782..d70f3e2 100644
--- a/src/soc/intel/apollolake/gpio_apl.c
+++ b/src/soc/intel/apollolake/gpio_apl.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <intelblocks/gpio.h>
 #include <intelblocks/pcr.h>
diff --git a/src/soc/intel/apollolake/gpio_glk.c b/src/soc/intel/apollolake/gpio_glk.c
index d895018..c6fd8cc 100644
--- a/src/soc/intel/apollolake/gpio_glk.c
+++ b/src/soc/intel/apollolake/gpio_glk.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <intelblocks/gpio.h>
 #include <intelblocks/pcr.h>
diff --git a/src/soc/intel/apollolake/graphics.c b/src/soc/intel/apollolake/graphics.c
index aff4c38..cf815e1 100644
--- a/src/soc/intel/apollolake/graphics.c
+++ b/src/soc/intel/apollolake/graphics.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <stdint.h>
 #include <acpi/acpi.h>
diff --git a/src/soc/intel/apollolake/gspi.c b/src/soc/intel/apollolake/gspi.c
index 80934f9..c62be58 100644
--- a/src/soc/intel/apollolake/gspi.c
+++ b/src/soc/intel/apollolake/gspi.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <intelblocks/gspi.h>
 #include <soc/pci_devs.h>
diff --git a/src/soc/intel/apollolake/heci.c b/src/soc/intel/apollolake/heci.c
index 8dad3a3..e500d31 100644
--- a/src/soc/intel/apollolake/heci.c
+++ b/src/soc/intel/apollolake/heci.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <device/device.h>
 #include <device/pci_def.h>
diff --git a/src/soc/intel/apollolake/include/soc/cpu.h b/src/soc/intel/apollolake/include/soc/cpu.h
index 332d26a..50a3413 100644
--- a/src/soc/intel/apollolake/include/soc/cpu.h
+++ b/src/soc/intel/apollolake/include/soc/cpu.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef _SOC_APOLLOLAKE_CPU_H_
 #define _SOC_APOLLOLAKE_CPU_H_
diff --git a/src/soc/intel/apollolake/include/soc/gpio.h b/src/soc/intel/apollolake/include/soc/gpio.h
index 06fc29e..2ce615d 100644
--- a/src/soc/intel/apollolake/include/soc/gpio.h
+++ b/src/soc/intel/apollolake/include/soc/gpio.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef _SOC_APL_GPIO_H_
 #define _SOC_APL_GPIO_H_
diff --git a/src/soc/intel/apollolake/include/soc/heci.h b/src/soc/intel/apollolake/include/soc/heci.h
index 41f4dab..845128f 100644
--- a/src/soc/intel/apollolake/include/soc/heci.h
+++ b/src/soc/intel/apollolake/include/soc/heci.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef _SOC_APOLLOLAKE_HECI_H_
 #define _SOC_APOLLOLAKE_HECI_H_
diff --git a/src/soc/intel/apollolake/include/soc/iomap.h b/src/soc/intel/apollolake/include/soc/iomap.h
index f254f01..3426d8b 100644
--- a/src/soc/intel/apollolake/include/soc/iomap.h
+++ b/src/soc/intel/apollolake/include/soc/iomap.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef _SOC_APOLLOLAKE_IOMAP_H_
 #define _SOC_APOLLOLAKE_IOMAP_H_
diff --git a/src/soc/intel/apollolake/include/soc/nhlt.h b/src/soc/intel/apollolake/include/soc/nhlt.h
index c578c58..1d4caa2 100644
--- a/src/soc/intel/apollolake/include/soc/nhlt.h
+++ b/src/soc/intel/apollolake/include/soc/nhlt.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef _SOC_APOLLOLAKE_NHLT_H_
 #define _SOC_APOLLOLAKE_NHLT_H_
diff --git a/src/soc/intel/apollolake/include/soc/nvs.h b/src/soc/intel/apollolake/include/soc/nvs.h
index cc97bb1..78c82eb 100644
--- a/src/soc/intel/apollolake/include/soc/nvs.h
+++ b/src/soc/intel/apollolake/include/soc/nvs.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /*
  * NOTE: The layout of the global_nvs_t structure below must match the layout
diff --git a/src/soc/intel/apollolake/include/soc/pci_devs.h b/src/soc/intel/apollolake/include/soc/pci_devs.h
index 8cb56b6..c908212 100644
--- a/src/soc/intel/apollolake/include/soc/pci_devs.h
+++ b/src/soc/intel/apollolake/include/soc/pci_devs.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef _SOC_APOLLOLAKE_PCI_DEVS_H_
 #define _SOC_APOLLOLAKE_PCI_DEVS_H_
diff --git a/src/soc/intel/apollolake/include/soc/pm.h b/src/soc/intel/apollolake/include/soc/pm.h
index 72a1496..42d599e 100644
--- a/src/soc/intel/apollolake/include/soc/pm.h
+++ b/src/soc/intel/apollolake/include/soc/pm.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef _SOC_APOLLOLAKE_PM_H_
 #define _SOC_APOLLOLAKE_PM_H_
diff --git a/src/soc/intel/apollolake/include/soc/ramstage.h b/src/soc/intel/apollolake/include/soc/ramstage.h
index 38839f3..f4c3def 100644
--- a/src/soc/intel/apollolake/include/soc/ramstage.h
+++ b/src/soc/intel/apollolake/include/soc/ramstage.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef _SOC_APOLLOLAKE_RAMSTAGE_H_
 #define _SOC_APOLLOLAKE_RAMSTAGE_H_
diff --git a/src/soc/intel/apollolake/include/soc/romstage.h b/src/soc/intel/apollolake/include/soc/romstage.h
index 8c4d1ed..0581f5e 100644
--- a/src/soc/intel/apollolake/include/soc/romstage.h
+++ b/src/soc/intel/apollolake/include/soc/romstage.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef _SOC_APOLLOLAKE_ROMSTAGE_H_
 #define _SOC_APOLLOLAKE_ROMSTAGE_H_
diff --git a/src/soc/intel/apollolake/include/soc/systemagent.h b/src/soc/intel/apollolake/include/soc/systemagent.h
index 0ac8293..75e4f9b 100644
--- a/src/soc/intel/apollolake/include/soc/systemagent.h
+++ b/src/soc/intel/apollolake/include/soc/systemagent.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef SOC_APOLLOLAKE_SYSTEMAGENT_H
 #define SOC_APOLLOLAKE_SYSTEMAGENT_H
diff --git a/src/soc/intel/apollolake/include/soc/usb.h b/src/soc/intel/apollolake/include/soc/usb.h
index 060d5bd..b2dc65d 100644
--- a/src/soc/intel/apollolake/include/soc/usb.h
+++ b/src/soc/intel/apollolake/include/soc/usb.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef _SOC_APOLLOLAKE_USB_H_
 #define _SOC_APOLLOLAKE_USB_H_
diff --git a/src/soc/intel/apollolake/lpc.c b/src/soc/intel/apollolake/lpc.c
index 541df00..217eb2c 100644
--- a/src/soc/intel/apollolake/lpc.c
+++ b/src/soc/intel/apollolake/lpc.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <device/pci.h>
 #include <intelblocks/lpc_lib.h>
diff --git a/src/soc/intel/apollolake/mmap_boot.c b/src/soc/intel/apollolake/mmap_boot.c
index f84821c..98cc242 100644
--- a/src/soc/intel/apollolake/mmap_boot.c
+++ b/src/soc/intel/apollolake/mmap_boot.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <boot_device.h>
 #include <cbfs.h>
diff --git a/src/soc/intel/apollolake/nhlt.c b/src/soc/intel/apollolake/nhlt.c
index d5ce4ae..4ff541b 100644
--- a/src/soc/intel/apollolake/nhlt.c
+++ b/src/soc/intel/apollolake/nhlt.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <nhlt.h>
 #include <soc/nhlt.h>
diff --git a/src/soc/intel/apollolake/pmc.c b/src/soc/intel/apollolake/pmc.c
index 60cc9aa..4ed8ea9 100644
--- a/src/soc/intel/apollolake/pmc.c
+++ b/src/soc/intel/apollolake/pmc.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include "chip.h"
 #include <console/console.h>
diff --git a/src/soc/intel/apollolake/pmutil.c b/src/soc/intel/apollolake/pmutil.c
index 58d34d1..cb5c353 100644
--- a/src/soc/intel/apollolake/pmutil.c
+++ b/src/soc/intel/apollolake/pmutil.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #define __SIMPLE_DEVICE__
 
diff --git a/src/soc/intel/apollolake/romstage.c b/src/soc/intel/apollolake/romstage.c
index 338aac9..34428e4 100644
--- a/src/soc/intel/apollolake/romstage.c
+++ b/src/soc/intel/apollolake/romstage.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <arch/romstage.h>
 #include <device/pci_ops.h>
diff --git a/src/soc/intel/apollolake/spi.c b/src/soc/intel/apollolake/spi.c
index 2a3c500..68ea1b1 100644
--- a/src/soc/intel/apollolake/spi.c
+++ b/src/soc/intel/apollolake/spi.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <intelblocks/spi.h>
 #include <soc/pci_devs.h>
diff --git a/src/soc/intel/apollolake/systemagent.c b/src/soc/intel/apollolake/systemagent.c
index b5ae6f3..cc3639c 100644
--- a/src/soc/intel/apollolake/systemagent.c
+++ b/src/soc/intel/apollolake/systemagent.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <cpu/cpu.h>
 #include <console/console.h>
diff --git a/src/soc/intel/apollolake/uart.c b/src/soc/intel/apollolake/uart.c
index 965e4ee..7b9450c 100644
--- a/src/soc/intel/apollolake/uart.c
+++ b/src/soc/intel/apollolake/uart.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /*
  * The sole purpose of this driver is to avoid BAR to be changed during
diff --git a/src/soc/intel/cannonlake/acpi/gfx.asl b/src/soc/intel/cannonlake/acpi/gfx.asl
index d9f265a..542d73d 100644
--- a/src/soc/intel/cannonlake/acpi/gfx.asl
+++ b/src/soc/intel/cannonlake/acpi/gfx.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of
- * the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 Device (GFX0)
 {
diff --git a/src/soc/intel/cannonlake/acpi/lpit.asl b/src/soc/intel/cannonlake/acpi/lpit.asl
index 83a64ca..3eb2e8f 100644
--- a/src/soc/intel/cannonlake/acpi/lpit.asl
+++ b/src/soc/intel/cannonlake/acpi/lpit.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 External(\_SB.MS0X, MethodObj)
 External(\_SB.PCI0.LPCB.EC0.S0IX, MethodObj)
diff --git a/src/soc/intel/cannonlake/acpi/pci_irqs.asl b/src/soc/intel/cannonlake/acpi/pci_irqs.asl
index d765ee3..f8fada3 100644
--- a/src/soc/intel/cannonlake/acpi/pci_irqs.asl
+++ b/src/soc/intel/cannonlake/acpi/pci_irqs.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <soc/irq.h>
 
diff --git a/src/soc/intel/cannonlake/acpi/southbridge.asl b/src/soc/intel/cannonlake/acpi/southbridge.asl
index 458c1aa..53558ef 100644
--- a/src/soc/intel/cannonlake/acpi/southbridge.asl
+++ b/src/soc/intel/cannonlake/acpi/southbridge.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /* PCI IRQ assignment */
 #include "pci_irqs.asl"
diff --git a/src/soc/intel/cannonlake/gpio.c b/src/soc/intel/cannonlake/gpio.c
index f641985..d71f9b3 100644
--- a/src/soc/intel/cannonlake/gpio.c
+++ b/src/soc/intel/cannonlake/gpio.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <intelblocks/gpio.h>
 #include <intelblocks/pcr.h>
diff --git a/src/soc/intel/cannonlake/gpio_cnp_h.c b/src/soc/intel/cannonlake/gpio_cnp_h.c
index 50ecb46..119b89d 100644
--- a/src/soc/intel/cannonlake/gpio_cnp_h.c
+++ b/src/soc/intel/cannonlake/gpio_cnp_h.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <intelblocks/gpio.h>
 #include <intelblocks/pcr.h>
diff --git a/src/soc/intel/cannonlake/gpio_common.c b/src/soc/intel/cannonlake/gpio_common.c
index 07dfbea..742213e 100644
--- a/src/soc/intel/cannonlake/gpio_common.c
+++ b/src/soc/intel/cannonlake/gpio_common.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <intelblocks/gpio.h>
 #include <soc/soc_chip.h>
diff --git a/src/soc/intel/cannonlake/graphics.c b/src/soc/intel/cannonlake/graphics.c
index 65dd621..05af993 100644
--- a/src/soc/intel/cannonlake/graphics.c
+++ b/src/soc/intel/cannonlake/graphics.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <acpi/acpi.h>
 #include <bootmode.h>
diff --git a/src/soc/intel/cannonlake/gspi.c b/src/soc/intel/cannonlake/gspi.c
index 43825d8..09adc47 100644
--- a/src/soc/intel/cannonlake/gspi.c
+++ b/src/soc/intel/cannonlake/gspi.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <intelblocks/gspi.h>
 #include <soc/pci_devs.h>
diff --git a/src/soc/intel/cannonlake/include/soc/nhlt.h b/src/soc/intel/cannonlake/include/soc/nhlt.h
index 3b8a353..e8eac69 100644
--- a/src/soc/intel/cannonlake/include/soc/nhlt.h
+++ b/src/soc/intel/cannonlake/include/soc/nhlt.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef _SOC_CANNONLAKE_NHLT_H_
 #define _SOC_CANNONLAKE_NHLT_H_
diff --git a/src/soc/intel/cannonlake/nhlt.c b/src/soc/intel/cannonlake/nhlt.c
index 56ad12a..a63502a 100644
--- a/src/soc/intel/cannonlake/nhlt.c
+++ b/src/soc/intel/cannonlake/nhlt.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <nhlt.h>
 #include <soc/nhlt.h>
diff --git a/src/soc/intel/cannonlake/spi.c b/src/soc/intel/cannonlake/spi.c
index 8a14d24..29dcdbe 100644
--- a/src/soc/intel/cannonlake/spi.c
+++ b/src/soc/intel/cannonlake/spi.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <intelblocks/spi.h>
 #include <soc/pci_devs.h>
diff --git a/src/soc/intel/common/acpi.h b/src/soc/intel/common/acpi.h
index 4547204..5e38c4b 100644
--- a/src/soc/intel/common/acpi.h
+++ b/src/soc/intel/common/acpi.h
@@ -1,13 +1,4 @@
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #ifndef _INTEL_COMMON_ACPI_H_
 #define _INTEL_COMMON_ACPI_H_
diff --git a/src/soc/intel/common/block/acpi/acpi.c b/src/soc/intel/common/block/acpi/acpi.c
index fd6e48c..eaf1e291 100644
--- a/src/soc/intel/common/block/acpi/acpi.c
+++ b/src/soc/intel/common/block/acpi/acpi.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <acpi/acpigen.h>
 #include <arch/ioapic.h>
diff --git a/src/soc/intel/common/block/acpi/acpi/northbridge.asl b/src/soc/intel/common/block/acpi/acpi/northbridge.asl
index 91265be..348f94a 100644
--- a/src/soc/intel/common/block/acpi/acpi/northbridge.asl
+++ b/src/soc/intel/common/block/acpi/acpi/northbridge.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <soc/iomap.h>
 
diff --git a/src/soc/intel/common/block/cpu/car/cache_as_ram_fsp.S b/src/soc/intel/common/block/cpu/car/cache_as_ram_fsp.S
index 07aebd5..ce5dc81 100644
--- a/src/soc/intel/common/block/cpu/car/cache_as_ram_fsp.S
+++ b/src/soc/intel/common/block/cpu/car/cache_as_ram_fsp.S
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <device/pci_def.h>
 #include <cpu/x86/mtrr.h>
diff --git a/src/soc/intel/common/block/gpio/gpio.c b/src/soc/intel/common/block/gpio/gpio.c
index a9304ba..b56ec6d 100644
--- a/src/soc/intel/common/block/gpio/gpio.c
+++ b/src/soc/intel/common/block/gpio/gpio.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <assert.h>
 #include <console/console.h>
diff --git a/src/soc/intel/common/block/graphics/graphics.c b/src/soc/intel/common/block/graphics/graphics.c
index 702b9a1..1be3238 100644
--- a/src/soc/intel/common/block/graphics/graphics.c
+++ b/src/soc/intel/common/block/graphics/graphics.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <assert.h>
 #include <console/console.h>
diff --git a/src/soc/intel/common/block/gspi/gspi.c b/src/soc/intel/common/block/gspi/gspi.c
index 939d2e0..ae57b31 100644
--- a/src/soc/intel/common/block/gspi/gspi.c
+++ b/src/soc/intel/common/block/gspi/gspi.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <device/mmio.h>
 #include <assert.h>
diff --git a/src/soc/intel/common/block/include/intelblocks/acpi.h b/src/soc/intel/common/block/include/intelblocks/acpi.h
index e8759ff..b2cbbf5 100644
--- a/src/soc/intel/common/block/include/intelblocks/acpi.h
+++ b/src/soc/intel/common/block/include/intelblocks/acpi.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef SOC_INTEL_COMMON_BLOCK_ACPI_H
 #define SOC_INTEL_COMMON_BLOCK_ACPI_H
diff --git a/src/soc/intel/common/block/include/intelblocks/cse.h b/src/soc/intel/common/block/include/intelblocks/cse.h
index a0998e1..308268d 100644
--- a/src/soc/intel/common/block/include/intelblocks/cse.h
+++ b/src/soc/intel/common/block/include/intelblocks/cse.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef SOC_INTEL_COMMON_CSE_H
 #define SOC_INTEL_COMMON_CSE_H
diff --git a/src/soc/intel/common/block/include/intelblocks/gpio.h b/src/soc/intel/common/block/include/intelblocks/gpio.h
index dd107a7..7e61da4 100644
--- a/src/soc/intel/common/block/include/intelblocks/gpio.h
+++ b/src/soc/intel/common/block/include/intelblocks/gpio.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef _SOC_INTELBLOCKS_GPIO_H_
 #define _SOC_INTELBLOCKS_GPIO_H_
diff --git a/src/soc/intel/common/block/include/intelblocks/gpio_defs.h b/src/soc/intel/common/block/include/intelblocks/gpio_defs.h
index 5327dba..266d093 100644
--- a/src/soc/intel/common/block/include/intelblocks/gpio_defs.h
+++ b/src/soc/intel/common/block/include/intelblocks/gpio_defs.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef _SOC_BLOCK_GPIO_DEFS_H_
 #define _SOC_BLOCK_GPIO_DEFS_H_
diff --git a/src/soc/intel/common/block/include/intelblocks/lpc_lib.h b/src/soc/intel/common/block/include/intelblocks/lpc_lib.h
index 9100f2a..f92ebcb 100644
--- a/src/soc/intel/common/block/include/intelblocks/lpc_lib.h
+++ b/src/soc/intel/common/block/include/intelblocks/lpc_lib.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef _SOC_COMMON_BLOCK_LPC_LIB_H_
 #define _SOC_COMMON_BLOCK_LPC_LIB_H_
diff --git a/src/soc/intel/common/block/lpc/lpc.c b/src/soc/intel/common/block/lpc/lpc.c
index 072963b..789470a 100644
--- a/src/soc/intel/common/block/lpc/lpc.c
+++ b/src/soc/intel/common/block/lpc/lpc.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <device/device.h>
 #include <device/pci.h>
diff --git a/src/soc/intel/common/block/lpc/lpc_def.h b/src/soc/intel/common/block/lpc/lpc_def.h
index 2d18838..14387d9 100644
--- a/src/soc/intel/common/block/lpc/lpc_def.h
+++ b/src/soc/intel/common/block/lpc/lpc_def.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef _SOC_COMMON_BLOCK_LPC_DEF_H_
 #define _SOC_COMMON_BLOCK_LPC_DEF_H_
diff --git a/src/soc/intel/common/block/lpc/lpc_lib.c b/src/soc/intel/common/block/lpc/lpc_lib.c
index f8b467a..160e8cf 100644
--- a/src/soc/intel/common/block/lpc/lpc_lib.c
+++ b/src/soc/intel/common/block/lpc/lpc_lib.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #define __SIMPLE_DEVICE__
 
diff --git a/src/soc/intel/common/block/spi/spi.c b/src/soc/intel/common/block/spi/spi.c
index ef8515c..59b876a 100644
--- a/src/soc/intel/common/block/spi/spi.c
+++ b/src/soc/intel/common/block/spi/spi.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <device/device.h>
 #include <device/pci.h>
diff --git a/src/soc/intel/common/block/sram/sram.c b/src/soc/intel/common/block/sram/sram.c
index 6dee879..ead3d9a 100644
--- a/src/soc/intel/common/block/sram/sram.c
+++ b/src/soc/intel/common/block/sram/sram.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <device/device.h>
 #include <device/pci.h>
diff --git a/src/soc/intel/common/reset.h b/src/soc/intel/common/reset.h
index e881b54..c345464 100644
--- a/src/soc/intel/common/reset.h
+++ b/src/soc/intel/common/reset.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef _INTEL_COMMON_RESET_H_
 #define _INTEL_COMMON_RESET_H_
diff --git a/src/soc/intel/denverton_ns/bootblock/bootblock.c b/src/soc/intel/denverton_ns/bootblock/bootblock.c
index 28f3121..0f72471 100644
--- a/src/soc/intel/denverton_ns/bootblock/bootblock.c
+++ b/src/soc/intel/denverton_ns/bootblock/bootblock.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <bootblock_common.h>
 #include <cpu/x86/mtrr.h>
diff --git a/src/soc/intel/denverton_ns/bootblock/uart.c b/src/soc/intel/denverton_ns/bootblock/uart.c
index 4b9fbe1..b834e8a7 100644
--- a/src/soc/intel/denverton_ns/bootblock/uart.c
+++ b/src/soc/intel/denverton_ns/bootblock/uart.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <device/mmio.h>
 #include <device/pci_ops.h>
diff --git a/src/soc/intel/denverton_ns/chip.c b/src/soc/intel/denverton_ns/chip.c
index 986459e..42d63ee 100644
--- a/src/soc/intel/denverton_ns/chip.c
+++ b/src/soc/intel/denverton_ns/chip.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <acpi/acpi.h>
 #include <bootstate.h>
diff --git a/src/soc/intel/denverton_ns/cpu.c b/src/soc/intel/denverton_ns/cpu.c
index 19dddbe..7142f32 100644
--- a/src/soc/intel/denverton_ns/cpu.c
+++ b/src/soc/intel/denverton_ns/cpu.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <console/console.h>
 #include <cpu/cpu.h>
diff --git a/src/soc/intel/denverton_ns/gpio.c b/src/soc/intel/denverton_ns/gpio.c
index 7705329..7bf4a34 100644
--- a/src/soc/intel/denverton_ns/gpio.c
+++ b/src/soc/intel/denverton_ns/gpio.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <intelblocks/gpio.h>
 #include <intelblocks/pcr.h>
diff --git a/src/soc/intel/denverton_ns/hob_display.c b/src/soc/intel/denverton_ns/hob_display.c
index b046b30..a61e6fa 100644
--- a/src/soc/intel/denverton_ns/hob_display.c
+++ b/src/soc/intel/denverton_ns/hob_display.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <console/console.h>
 #include <fsp/util.h>
diff --git a/src/soc/intel/denverton_ns/memmap.c b/src/soc/intel/denverton_ns/memmap.c
index 790275a..2700078 100644
--- a/src/soc/intel/denverton_ns/memmap.c
+++ b/src/soc/intel/denverton_ns/memmap.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <arch/romstage.h>
 #include <cbmem.h>
diff --git a/src/soc/intel/denverton_ns/spi.c b/src/soc/intel/denverton_ns/spi.c
index 4fefd36..bedba3f 100644
--- a/src/soc/intel/denverton_ns/spi.c
+++ b/src/soc/intel/denverton_ns/spi.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <intelblocks/fast_spi.h>
 #include <spi-generic.h>
diff --git a/src/soc/intel/denverton_ns/uart.c b/src/soc/intel/denverton_ns/uart.c
index 44ba033..9a42499 100644
--- a/src/soc/intel/denverton_ns/uart.c
+++ b/src/soc/intel/denverton_ns/uart.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /*
  * The sole purpose of this driver is to avoid BAR to be changed during
diff --git a/src/soc/intel/denverton_ns/uart_debug.c b/src/soc/intel/denverton_ns/uart_debug.c
index 60ff4d9..ce1a1e2 100644
--- a/src/soc/intel/denverton_ns/uart_debug.c
+++ b/src/soc/intel/denverton_ns/uart_debug.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <stdint.h>
 #include <device/pci_def.h>
diff --git a/src/soc/intel/denverton_ns/upd_display.c b/src/soc/intel/denverton_ns/upd_display.c
index 58e0ad5..46a0cf2 100644
--- a/src/soc/intel/denverton_ns/upd_display.c
+++ b/src/soc/intel/denverton_ns/upd_display.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <console/console.h>
 #include <fsp/util.h>
diff --git a/src/soc/intel/icelake/acpi/pci_irqs.asl b/src/soc/intel/icelake/acpi/pci_irqs.asl
index a6aa0ab..6712fdd 100644
--- a/src/soc/intel/icelake/acpi/pci_irqs.asl
+++ b/src/soc/intel/icelake/acpi/pci_irqs.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <soc/irq.h>
 
diff --git a/src/soc/intel/icelake/acpi/southbridge.asl b/src/soc/intel/icelake/acpi/southbridge.asl
index b98f4ef..a1e8966 100644
--- a/src/soc/intel/icelake/acpi/southbridge.asl
+++ b/src/soc/intel/icelake/acpi/southbridge.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <intelblocks/itss.h>
 #include <intelblocks/pcr.h>
diff --git a/src/soc/intel/icelake/gpio.c b/src/soc/intel/icelake/gpio.c
index f8452ea..dd865fb 100644
--- a/src/soc/intel/icelake/gpio.c
+++ b/src/soc/intel/icelake/gpio.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <intelblocks/gpio.h>
 #include <intelblocks/pcr.h>
diff --git a/src/soc/intel/icelake/graphics.c b/src/soc/intel/icelake/graphics.c
index 33e6227f..88b5869 100644
--- a/src/soc/intel/icelake/graphics.c
+++ b/src/soc/intel/icelake/graphics.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <acpi/acpi.h>
 #include <console/console.h>
diff --git a/src/soc/intel/icelake/gspi.c b/src/soc/intel/icelake/gspi.c
index 43825d8..09adc47 100644
--- a/src/soc/intel/icelake/gspi.c
+++ b/src/soc/intel/icelake/gspi.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <intelblocks/gspi.h>
 #include <soc/pci_devs.h>
diff --git a/src/soc/intel/icelake/spi.c b/src/soc/intel/icelake/spi.c
index 8a14d24..29dcdbe 100644
--- a/src/soc/intel/icelake/spi.c
+++ b/src/soc/intel/icelake/spi.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <intelblocks/spi.h>
 #include <soc/pci_devs.h>
diff --git a/src/soc/intel/jasperlake/acpi/camera_clock_ctl.asl b/src/soc/intel/jasperlake/acpi/camera_clock_ctl.asl
index cc832e4..a33804e 100644
--- a/src/soc/intel/jasperlake/acpi/camera_clock_ctl.asl
+++ b/src/soc/intel/jasperlake/acpi/camera_clock_ctl.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #define R_ICLK_PCR_CAMERA1	0x8000
 #define B_ICLK_PCR_FREQUENCY	0x1
diff --git a/src/soc/intel/jasperlake/acpi/pci_irqs.asl b/src/soc/intel/jasperlake/acpi/pci_irqs.asl
index aa5048e..845da7a 100644
--- a/src/soc/intel/jasperlake/acpi/pci_irqs.asl
+++ b/src/soc/intel/jasperlake/acpi/pci_irqs.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <soc/irq.h>
 
diff --git a/src/soc/intel/jasperlake/acpi/southbridge.asl b/src/soc/intel/jasperlake/acpi/southbridge.asl
index 549ee96..339d62b 100644
--- a/src/soc/intel/jasperlake/acpi/southbridge.asl
+++ b/src/soc/intel/jasperlake/acpi/southbridge.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <intelblocks/itss.h>
 #include <intelblocks/pcr.h>
diff --git a/src/soc/intel/jasperlake/gpio.c b/src/soc/intel/jasperlake/gpio.c
index 7850c64..1a6b8ae 100644
--- a/src/soc/intel/jasperlake/gpio.c
+++ b/src/soc/intel/jasperlake/gpio.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <intelblocks/gpio.h>
 #include <intelblocks/pcr.h>
diff --git a/src/soc/intel/jasperlake/graphics.c b/src/soc/intel/jasperlake/graphics.c
index 33e6227f..88b5869 100644
--- a/src/soc/intel/jasperlake/graphics.c
+++ b/src/soc/intel/jasperlake/graphics.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <acpi/acpi.h>
 #include <console/console.h>
diff --git a/src/soc/intel/jasperlake/gspi.c b/src/soc/intel/jasperlake/gspi.c
index 43825d8..09adc47 100644
--- a/src/soc/intel/jasperlake/gspi.c
+++ b/src/soc/intel/jasperlake/gspi.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <intelblocks/gspi.h>
 #include <soc/pci_devs.h>
diff --git a/src/soc/intel/jasperlake/spi.c b/src/soc/intel/jasperlake/spi.c
index 8a14d24..29dcdbe 100644
--- a/src/soc/intel/jasperlake/spi.c
+++ b/src/soc/intel/jasperlake/spi.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <intelblocks/spi.h>
 #include <soc/pci_devs.h>
diff --git a/src/soc/intel/skylake/gspi.c b/src/soc/intel/skylake/gspi.c
index 13e329d..3b945c8 100644
--- a/src/soc/intel/skylake/gspi.c
+++ b/src/soc/intel/skylake/gspi.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 #include <intelblocks/gspi.h>
 #include <soc/pci_devs.h>
 
diff --git a/src/soc/intel/skylake/nhlt/da7219.c b/src/soc/intel/skylake/nhlt/da7219.c
index 5ce3e35..e1673f6 100644
--- a/src/soc/intel/skylake/nhlt/da7219.c
+++ b/src/soc/intel/skylake/nhlt/da7219.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <nhlt.h>
 #include <soc/nhlt.h>
diff --git a/src/soc/intel/skylake/spi.c b/src/soc/intel/skylake/spi.c
index bebf6c4..6283001 100644
--- a/src/soc/intel/skylake/spi.c
+++ b/src/soc/intel/skylake/spi.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <intelblocks/spi.h>
 #include <soc/pci_devs.h>
diff --git a/src/soc/intel/tigerlake/acpi/camera_clock_ctl.asl b/src/soc/intel/tigerlake/acpi/camera_clock_ctl.asl
index cc832e4..a33804e 100644
--- a/src/soc/intel/tigerlake/acpi/camera_clock_ctl.asl
+++ b/src/soc/intel/tigerlake/acpi/camera_clock_ctl.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #define R_ICLK_PCR_CAMERA1	0x8000
 #define B_ICLK_PCR_FREQUENCY	0x1
diff --git a/src/soc/intel/tigerlake/acpi/pci_irqs.asl b/src/soc/intel/tigerlake/acpi/pci_irqs.asl
index a021d36..c93ef54 100644
--- a/src/soc/intel/tigerlake/acpi/pci_irqs.asl
+++ b/src/soc/intel/tigerlake/acpi/pci_irqs.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <soc/irq.h>
 
diff --git a/src/soc/intel/tigerlake/acpi/southbridge.asl b/src/soc/intel/tigerlake/acpi/southbridge.asl
index 2c99978..b5bb504 100644
--- a/src/soc/intel/tigerlake/acpi/southbridge.asl
+++ b/src/soc/intel/tigerlake/acpi/southbridge.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <intelblocks/itss.h>
 #include <intelblocks/pcr.h>
diff --git a/src/soc/intel/tigerlake/gpio.c b/src/soc/intel/tigerlake/gpio.c
index ca02cd9..85a25f2 100644
--- a/src/soc/intel/tigerlake/gpio.c
+++ b/src/soc/intel/tigerlake/gpio.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <intelblocks/gpio.h>
 #include <intelblocks/pcr.h>
diff --git a/src/soc/intel/tigerlake/graphics.c b/src/soc/intel/tigerlake/graphics.c
index f8d1125..f1a490d 100644
--- a/src/soc/intel/tigerlake/graphics.c
+++ b/src/soc/intel/tigerlake/graphics.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /*
  * This file is created based on Intel Tiger Lake Processor SA Datasheet
diff --git a/src/soc/intel/tigerlake/gspi.c b/src/soc/intel/tigerlake/gspi.c
index 9385ec1..51bc868 100644
--- a/src/soc/intel/tigerlake/gspi.c
+++ b/src/soc/intel/tigerlake/gspi.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /*
  * This file is created based on Intel Tiger Lake Processor PCH Datasheet
diff --git a/src/soc/intel/tigerlake/spi.c b/src/soc/intel/tigerlake/spi.c
index 765a24d..16dc996 100644
--- a/src/soc/intel/tigerlake/spi.c
+++ b/src/soc/intel/tigerlake/spi.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /*
  * This file is created based on Intel Tiger Lake Processor PCH Datasheet
diff --git a/src/soc/intel/xeon_sp/bootblock.c b/src/soc/intel/xeon_sp/bootblock.c
index d89143b..1718c85 100644
--- a/src/soc/intel/xeon_sp/bootblock.c
+++ b/src/soc/intel/xeon_sp/bootblock.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <bootblock_common.h>
 #include <device/pci.h>
diff --git a/src/soc/intel/xeon_sp/include/soc/iomap.h b/src/soc/intel/xeon_sp/include/soc/iomap.h
index 134d0e6..2e90054 100644
--- a/src/soc/intel/xeon_sp/include/soc/iomap.h
+++ b/src/soc/intel/xeon_sp/include/soc/iomap.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 
 #ifndef _SOC_IOMAP_H_
diff --git a/src/soc/intel/xeon_sp/include/soc/pcr_ids.h b/src/soc/intel/xeon_sp/include/soc/pcr_ids.h
index 3f3b3f1..9869ecd 100644
--- a/src/soc/intel/xeon_sp/include/soc/pcr_ids.h
+++ b/src/soc/intel/xeon_sp/include/soc/pcr_ids.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef _PCR_IDS_H_
 #define _PCR_IDS_H_
diff --git a/src/soc/intel/xeon_sp/include/soc/pm.h b/src/soc/intel/xeon_sp/include/soc/pm.h
index c4091d1..27c0067 100644
--- a/src/soc/intel/xeon_sp/include/soc/pm.h
+++ b/src/soc/intel/xeon_sp/include/soc/pm.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef _SOC_PM_H_
 #define _SOC_PM_H_
diff --git a/src/soc/intel/xeon_sp/include/soc/pmc.h b/src/soc/intel/xeon_sp/include/soc/pmc.h
index bcd476c..bebf2ac 100644
--- a/src/soc/intel/xeon_sp/include/soc/pmc.h
+++ b/src/soc/intel/xeon_sp/include/soc/pmc.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef _SOC_PMC_H_
 #define _SOC_PMC_H_
diff --git a/src/soc/intel/xeon_sp/include/soc/romstage.h b/src/soc/intel/xeon_sp/include/soc/romstage.h
index 80101f5..221d6f6 100644
--- a/src/soc/intel/xeon_sp/include/soc/romstage.h
+++ b/src/soc/intel/xeon_sp/include/soc/romstage.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 
 #ifndef _SOC_ROMSTAGE_H_
diff --git a/src/soc/intel/xeon_sp/include/soc/util.h b/src/soc/intel/xeon_sp/include/soc/util.h
index e41b771..fa368c2 100644
--- a/src/soc/intel/xeon_sp/include/soc/util.h
+++ b/src/soc/intel/xeon_sp/include/soc/util.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef _XEON_SP_SOC_UTIL_H_
 #define _XEON_SP_SOC_UTIL_H_
diff --git a/src/soc/intel/xeon_sp/lpc.c b/src/soc/intel/xeon_sp/lpc.c
index 696734e..f41c288 100644
--- a/src/soc/intel/xeon_sp/lpc.c
+++ b/src/soc/intel/xeon_sp/lpc.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <console/console.h>
 #include <arch/ioapic.h>
diff --git a/src/soc/intel/xeon_sp/reset.c b/src/soc/intel/xeon_sp/reset.c
index 259fbc3..e496006 100644
--- a/src/soc/intel/xeon_sp/reset.c
+++ b/src/soc/intel/xeon_sp/reset.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <console/console.h>
 #include <fsp/util.h>
diff --git a/src/soc/intel/xeon_sp/romstage.c b/src/soc/intel/xeon_sp/romstage.c
index c0177bd..947cd01 100644
--- a/src/soc/intel/xeon_sp/romstage.c
+++ b/src/soc/intel/xeon_sp/romstage.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <arch/romstage.h>
 #include <cbmem.h>
diff --git a/src/soc/intel/xeon_sp/skx/acpi.c b/src/soc/intel/xeon_sp/skx/acpi.c
index 6d95d51..2f4fb64 100644
--- a/src/soc/intel/xeon_sp/skx/acpi.c
+++ b/src/soc/intel/xeon_sp/skx/acpi.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <assert.h>
 #include <acpi/acpigen.h>
diff --git a/src/soc/intel/xeon_sp/skx/acpi/globalnvs.asl b/src/soc/intel/xeon_sp/skx/acpi/globalnvs.asl
index 3e19165..d57c850 100644
--- a/src/soc/intel/xeon_sp/skx/acpi/globalnvs.asl
+++ b/src/soc/intel/xeon_sp/skx/acpi/globalnvs.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 
 /* Global Variables */
diff --git a/src/soc/intel/xeon_sp/skx/acpi/iiostack.asl b/src/soc/intel/xeon_sp/skx/acpi/iiostack.asl
index 6347c2b..0a06766 100644
--- a/src/soc/intel/xeon_sp/skx/acpi/iiostack.asl
+++ b/src/soc/intel/xeon_sp/skx/acpi/iiostack.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #define MAKE_IIO_DEV(id,rt) \
 	Device (PC##id)           \
diff --git a/src/soc/intel/xeon_sp/skx/acpi/uncore.asl b/src/soc/intel/xeon_sp/skx/acpi/uncore.asl
index 4ed1c1d..eff5d9b 100644
--- a/src/soc/intel/xeon_sp/skx/acpi/uncore.asl
+++ b/src/soc/intel/xeon_sp/skx/acpi/uncore.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 
 #include <intelblocks/itss.h>
diff --git a/src/soc/intel/xeon_sp/skx/acpi/uncore_irq.asl b/src/soc/intel/xeon_sp/skx/acpi/uncore_irq.asl
index 2bb1e4a..095a878 100644
--- a/src/soc/intel/xeon_sp/skx/acpi/uncore_irq.asl
+++ b/src/soc/intel/xeon_sp/skx/acpi/uncore_irq.asl
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /*
  * Uncore devices PCI interrupt routing packages.
diff --git a/src/soc/intel/xeon_sp/skx/chip.c b/src/soc/intel/xeon_sp/skx/chip.c
index 3f9db82..875fe38 100644
--- a/src/soc/intel/xeon_sp/skx/chip.c
+++ b/src/soc/intel/xeon_sp/skx/chip.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <cbfs.h>
 #include <assert.h>
diff --git a/src/soc/intel/xeon_sp/skx/chip.h b/src/soc/intel/xeon_sp/skx/chip.h
index 8b48eb7..eb44af9 100644
--- a/src/soc/intel/xeon_sp/skx/chip.h
+++ b/src/soc/intel/xeon_sp/skx/chip.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 
 #ifndef _SOC_CHIP_H_
diff --git a/src/soc/intel/xeon_sp/skx/cpu.c b/src/soc/intel/xeon_sp/skx/cpu.c
index d19921b..431a3bd 100644
--- a/src/soc/intel/xeon_sp/skx/cpu.c
+++ b/src/soc/intel/xeon_sp/skx/cpu.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <console/console.h>
 #include <intelblocks/cpulib.h>
diff --git a/src/soc/intel/xeon_sp/skx/hob_display.c b/src/soc/intel/xeon_sp/skx/hob_display.c
index 2cc39e6..97a96cf 100644
--- a/src/soc/intel/xeon_sp/skx/hob_display.c
+++ b/src/soc/intel/xeon_sp/skx/hob_display.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <console/console.h>
 #include <fsp/util.h>
diff --git a/src/soc/intel/xeon_sp/skx/include/soc/acpi.h b/src/soc/intel/xeon_sp/skx/include/soc/acpi.h
index e7f176a..7abeeec 100644
--- a/src/soc/intel/xeon_sp/skx/include/soc/acpi.h
+++ b/src/soc/intel/xeon_sp/skx/include/soc/acpi.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 
 #ifndef _SOC_ACPI_H_
diff --git a/src/soc/intel/xeon_sp/skx/include/soc/cpu.h b/src/soc/intel/xeon_sp/skx/include/soc/cpu.h
index 08ce4ed..76d5dee 100644
--- a/src/soc/intel/xeon_sp/skx/include/soc/cpu.h
+++ b/src/soc/intel/xeon_sp/skx/include/soc/cpu.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef _SOC_CPU_H_
 #define _SOC_CPU_H_
diff --git a/src/soc/intel/xeon_sp/skx/include/soc/irq.h b/src/soc/intel/xeon_sp/skx/include/soc/irq.h
index 92bcdc8..726d332 100644
--- a/src/soc/intel/xeon_sp/skx/include/soc/irq.h
+++ b/src/soc/intel/xeon_sp/skx/include/soc/irq.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef _SOC_IRQ_H_
 #define _SOC_IRQ_H_
diff --git a/src/soc/intel/xeon_sp/skx/include/soc/msr.h b/src/soc/intel/xeon_sp/skx/include/soc/msr.h
index 31c1c02..76b42bc 100644
--- a/src/soc/intel/xeon_sp/skx/include/soc/msr.h
+++ b/src/soc/intel/xeon_sp/skx/include/soc/msr.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef _SOC_MSR_H_
 #define _SOC_MSR_H_
diff --git a/src/soc/intel/xeon_sp/skx/include/soc/pci_devs.h b/src/soc/intel/xeon_sp/skx/include/soc/pci_devs.h
index 07edad2..5c20f71 100644
--- a/src/soc/intel/xeon_sp/skx/include/soc/pci_devs.h
+++ b/src/soc/intel/xeon_sp/skx/include/soc/pci_devs.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef _SOC_PCI_DEVS_H_
 #define _SOC_PCI_DEVS_H_
diff --git a/src/soc/intel/xeon_sp/skx/include/soc/ramstage.h b/src/soc/intel/xeon_sp/skx/include/soc/ramstage.h
index ffd67b1..18373f8 100644
--- a/src/soc/intel/xeon_sp/skx/include/soc/ramstage.h
+++ b/src/soc/intel/xeon_sp/skx/include/soc/ramstage.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef _SOC_RAMSTAGE_H_
 #define _SOC_RAMSTAGE_H_
diff --git a/src/soc/intel/xeon_sp/skx/soc_util.c b/src/soc/intel/xeon_sp/skx/soc_util.c
index 9beddcc..ab1437b 100644
--- a/src/soc/intel/xeon_sp/skx/soc_util.c
+++ b/src/soc/intel/xeon_sp/skx/soc_util.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <assert.h>
 #include <commonlib/sort.h>
diff --git a/src/soc/intel/xeon_sp/skx/upd_display.c b/src/soc/intel/xeon_sp/skx/upd_display.c
index fcea838..d4e04cc 100644
--- a/src/soc/intel/xeon_sp/skx/upd_display.c
+++ b/src/soc/intel/xeon_sp/skx/upd_display.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 
 #include <console/console.h>
diff --git a/src/soc/intel/xeon_sp/spi.c b/src/soc/intel/xeon_sp/spi.c
index fbb60e8..f312a56 100644
--- a/src/soc/intel/xeon_sp/spi.c
+++ b/src/soc/intel/xeon_sp/spi.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <intelblocks/spi.h>
 #include <soc/pci_devs.h>
diff --git a/src/soc/intel/xeon_sp/uncore.c b/src/soc/intel/xeon_sp/uncore.c
index a578efe..836ac55 100644
--- a/src/soc/intel/xeon_sp/uncore.c
+++ b/src/soc/intel/xeon_sp/uncore.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <cbmem.h>
 #include <console/console.h>
diff --git a/src/soc/mediatek/mt8183/include/soc/md_ctrl.h b/src/soc/mediatek/mt8183/include/soc/md_ctrl.h
index 3d7dbb7..f60f15e 100644
--- a/src/soc/mediatek/mt8183/include/soc/md_ctrl.h
+++ b/src/soc/mediatek/mt8183/include/soc/md_ctrl.h
@@ -1,14 +1,4 @@
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #ifndef __SOC_MEDIATEK_MD_CTRL_H__
 #define __SOC_MEDIATEK_MD_CTRL_H__
diff --git a/src/soc/mediatek/mt8183/md_ctrl.c b/src/soc/mediatek/mt8183/md_ctrl.c
index d65b426..0abd2c9 100644
--- a/src/soc/mediatek/mt8183/md_ctrl.c
+++ b/src/soc/mediatek/mt8183/md_ctrl.c
@@ -1,14 +1,4 @@
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <device/mmio.h>
 #include <soc/addressmap.h>
diff --git a/src/soc/nvidia/tegra/dc.h b/src/soc/nvidia/tegra/dc.h
index 927533e..f0f5b11 100644
--- a/src/soc/nvidia/tegra/dc.h
+++ b/src/soc/nvidia/tegra/dc.h
@@ -1,14 +1,4 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef __SOC_NVIDIA_TEGRA_DC_H
 #define __SOC_NVIDIA_TEGRA_DC_H
diff --git a/src/soc/nvidia/tegra/pwm.h b/src/soc/nvidia/tegra/pwm.h
index 7e9e81a..765de08 100644
--- a/src/soc/nvidia/tegra/pwm.h
+++ b/src/soc/nvidia/tegra/pwm.h
@@ -1,14 +1,4 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef __SOC_NVIDIA_TEGRA_PWM_H
 #define __SOC_NVIDIA_TEGRA_PWM_H
diff --git a/src/soc/qualcomm/common/include/soc/mmu_common.h b/src/soc/qualcomm/common/include/soc/mmu_common.h
index 22cb71f..58f92c5 100644
--- a/src/soc/qualcomm/common/include/soc/mmu_common.h
+++ b/src/soc/qualcomm/common/include/soc/mmu_common.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #ifndef _SOC_QUALCOMM_MMU_COMMON_H_
 #define _SOC_QUALCOMM_MMU_COMMON_H_
diff --git a/src/soc/qualcomm/common/include/soc/qclib_common.h b/src/soc/qualcomm/common/include/soc/qclib_common.h
index 18a4a32..16dbdaa 100644
--- a/src/soc/qualcomm/common/include/soc/qclib_common.h
+++ b/src/soc/qualcomm/common/include/soc/qclib_common.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #ifndef _SOC_QUALCOMM_QCLIB_COMMON_H__
 #define _SOC_QUALCOMM_QCLIB_COMMON_H__
diff --git a/src/soc/qualcomm/common/include/soc/symbols_common.h b/src/soc/qualcomm/common/include/soc/symbols_common.h
index 68a9b69..60b3f4e 100644
--- a/src/soc/qualcomm/common/include/soc/symbols_common.h
+++ b/src/soc/qualcomm/common/include/soc/symbols_common.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #ifndef _SOC_QUALCOMM_SYMBOLS_COMMON_H_
 #define _SOC_QUALCOMM_SYMBOLS_COMMON_H_
diff --git a/src/soc/qualcomm/common/mmu.c b/src/soc/qualcomm/common/mmu.c
index c9967a7..76ce0b6 100644
--- a/src/soc/qualcomm/common/mmu.c
+++ b/src/soc/qualcomm/common/mmu.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <arch/mmu.h>
 #include <soc/mmu.h>
diff --git a/src/soc/qualcomm/common/qclib.c b/src/soc/qualcomm/common/qclib.c
index 93472e5..dc6a842 100644
--- a/src/soc/qualcomm/common/qclib.c
+++ b/src/soc/qualcomm/common/qclib.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <console/cbmem_console.h>
 #include <cbmem.h>
diff --git a/src/soc/qualcomm/ipq40xx/tz_wrapper.S b/src/soc/qualcomm/ipq40xx/tz_wrapper.S
index 1df9801..fab2204 100644
--- a/src/soc/qualcomm/ipq40xx/tz_wrapper.S
+++ b/src/soc/qualcomm/ipq40xx/tz_wrapper.S
@@ -1,14 +1,4 @@
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 /*
  * TZ expects the ARM core to be in 'ARM' mode. However, coreboot seems
diff --git a/src/soc/qualcomm/ipq806x/tz_wrapper.S b/src/soc/qualcomm/ipq806x/tz_wrapper.S
index 1df9801..fab2204 100644
--- a/src/soc/qualcomm/ipq806x/tz_wrapper.S
+++ b/src/soc/qualcomm/ipq806x/tz_wrapper.S
@@ -1,14 +1,4 @@
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 /*
  * TZ expects the ARM core to be in 'ARM' mode. However, coreboot seems
diff --git a/src/soc/qualcomm/qcs405/bootblock.c b/src/soc/qualcomm/qcs405/bootblock.c
index dcfc846..b7f912a 100644
--- a/src/soc/qualcomm/qcs405/bootblock.c
+++ b/src/soc/qualcomm/qcs405/bootblock.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <bootblock_common.h>
 #include <soc/mmu.h>
diff --git a/src/soc/qualcomm/qcs405/cbmem.c b/src/soc/qualcomm/qcs405/cbmem.c
index 6a0fe9d..d7f4500 100644
--- a/src/soc/qualcomm/qcs405/cbmem.c
+++ b/src/soc/qualcomm/qcs405/cbmem.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <cbmem.h>
 
diff --git a/src/soc/qualcomm/qcs405/clock.c b/src/soc/qualcomm/qcs405/clock.c
index cbc16a9..636b8b9 100644
--- a/src/soc/qualcomm/qcs405/clock.c
+++ b/src/soc/qualcomm/qcs405/clock.c
@@ -1,14 +1,5 @@
  /* This file is part of the coreboot project. */
- /*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+ /* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <console/console.h>
 #include <device/mmio.h>
diff --git a/src/soc/qualcomm/qcs405/include/soc/addressmap.h b/src/soc/qualcomm/qcs405/include/soc/addressmap.h
index 98f4467..4e283d2 100644
--- a/src/soc/qualcomm/qcs405/include/soc/addressmap.h
+++ b/src/soc/qualcomm/qcs405/include/soc/addressmap.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #ifndef __SOC_QUALCOMM_QCS405_ADDRESS_MAP_H__
 #define __SOC_QUALCOMM_QCS405_ADDRESS_MAP_H__
diff --git a/src/soc/qualcomm/qcs405/include/soc/clock.h b/src/soc/qualcomm/qcs405/include/soc/clock.h
index 1778214d..0fc27e0 100644
--- a/src/soc/qualcomm/qcs405/include/soc/clock.h
+++ b/src/soc/qualcomm/qcs405/include/soc/clock.h
@@ -1,14 +1,5 @@
  /* This file is part of the coreboot project. */
- /*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+ /* SPDX-License-Identifier: GPL-2.0-only */
 #include <soc/addressmap.h>
 #include <types.h>
 
diff --git a/src/soc/qualcomm/qcs405/include/soc/gpio.h b/src/soc/qualcomm/qcs405/include/soc/gpio.h
index 9e665ed..49787b9 100644
--- a/src/soc/qualcomm/qcs405/include/soc/gpio.h
+++ b/src/soc/qualcomm/qcs405/include/soc/gpio.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #ifndef _SOC_QUALCOMM_QCS405_GPIO_H_
 #define _SOC_QUALCOMM_QCS405_GPIO_H_
diff --git a/src/soc/qualcomm/qcs405/include/soc/memlayout.ld b/src/soc/qualcomm/qcs405/include/soc/memlayout.ld
index f138fb7..fb6edb3 100644
--- a/src/soc/qualcomm/qcs405/include/soc/memlayout.ld
+++ b/src/soc/qualcomm/qcs405/include/soc/memlayout.ld
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <memlayout.h>
 #include <arch/header.ld>
diff --git a/src/soc/qualcomm/qcs405/include/soc/mmu.h b/src/soc/qualcomm/qcs405/include/soc/mmu.h
index a6a9fea..b09abe9 100644
--- a/src/soc/qualcomm/qcs405/include/soc/mmu.h
+++ b/src/soc/qualcomm/qcs405/include/soc/mmu.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #ifndef _SOC_QUALCOMM_QCS405_MMU_H__
 #define _SOC_QUALCOMM_QCS405_MMU_H__
diff --git a/src/soc/qualcomm/qcs405/include/soc/symbols.h b/src/soc/qualcomm/qcs405/include/soc/symbols.h
index 90f7296..d952d72 100644
--- a/src/soc/qualcomm/qcs405/include/soc/symbols.h
+++ b/src/soc/qualcomm/qcs405/include/soc/symbols.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #ifndef _SOC_QUALCOMM_QCS405_SYMBOLS_H_
 #define _SOC_QUALCOMM_QCS405_SYMBOLS_H_
diff --git a/src/soc/qualcomm/qcs405/include/soc/usb.h b/src/soc/qualcomm/qcs405/include/soc/usb.h
index 04ab3b6..44c0382 100644
--- a/src/soc/qualcomm/qcs405/include/soc/usb.h
+++ b/src/soc/qualcomm/qcs405/include/soc/usb.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 #include <types.h>
 
 #ifndef _QCS405_USB_H_
diff --git a/src/soc/qualcomm/qcs405/mmu.c b/src/soc/qualcomm/qcs405/mmu.c
index e6b70c0..6517b99 100644
--- a/src/soc/qualcomm/qcs405/mmu.c
+++ b/src/soc/qualcomm/qcs405/mmu.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <symbols.h>
 #include <arch/mmu.h>
diff --git a/src/soc/qualcomm/qcs405/soc.c b/src/soc/qualcomm/qcs405/soc.c
index 5f11f73..3b8a799 100644
--- a/src/soc/qualcomm/qcs405/soc.c
+++ b/src/soc/qualcomm/qcs405/soc.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <symbols.h>
 #include <device/device.h>
diff --git a/src/soc/qualcomm/qcs405/timer.c b/src/soc/qualcomm/qcs405/timer.c
index 085344c..7e62c88 100644
--- a/src/soc/qualcomm/qcs405/timer.c
+++ b/src/soc/qualcomm/qcs405/timer.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <delay.h>
 #include <arch/lib_helpers.h>
diff --git a/src/soc/qualcomm/qcs405/usb.c b/src/soc/qualcomm/qcs405/usb.c
index 1723fac..0343b55 100644
--- a/src/soc/qualcomm/qcs405/usb.c
+++ b/src/soc/qualcomm/qcs405/usb.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <device/mmio.h>
 #include <console/console.h>
diff --git a/src/soc/qualcomm/sc7180/aop_load_reset.c b/src/soc/qualcomm/sc7180/aop_load_reset.c
index 784101a..e7c1620 100644
--- a/src/soc/qualcomm/sc7180/aop_load_reset.c
+++ b/src/soc/qualcomm/sc7180/aop_load_reset.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <cbfs.h>
 #include <halt.h>
diff --git a/src/soc/qualcomm/sc7180/bootblock.c b/src/soc/qualcomm/sc7180/bootblock.c
index 29d5d89..f7d5604 100644
--- a/src/soc/qualcomm/sc7180/bootblock.c
+++ b/src/soc/qualcomm/sc7180/bootblock.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <bootblock_common.h>
 #include <soc/clock.h>
diff --git a/src/soc/qualcomm/sc7180/cbmem.c b/src/soc/qualcomm/sc7180/cbmem.c
index 3f654fd..0065a93 100644
--- a/src/soc/qualcomm/sc7180/cbmem.c
+++ b/src/soc/qualcomm/sc7180/cbmem.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <cbmem.h>
 
diff --git a/src/soc/qualcomm/sc7180/clock.c b/src/soc/qualcomm/sc7180/clock.c
index b7fe201..ab1c20f 100644
--- a/src/soc/qualcomm/sc7180/clock.c
+++ b/src/soc/qualcomm/sc7180/clock.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <assert.h>
 #include <commonlib/helpers.h>
diff --git a/src/soc/qualcomm/sc7180/include/soc/addressmap.h b/src/soc/qualcomm/sc7180/include/soc/addressmap.h
index 0b9f439..4f0761f 100644
--- a/src/soc/qualcomm/sc7180/include/soc/addressmap.h
+++ b/src/soc/qualcomm/sc7180/include/soc/addressmap.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #ifndef _SOC_QUALCOMM_SC7180_ADDRESS_MAP_H_
 #define _SOC_QUALCOMM_SC7180_ADDRESS_MAP_H_
diff --git a/src/soc/qualcomm/sc7180/include/soc/aop.h b/src/soc/qualcomm/sc7180/include/soc/aop.h
index 1fd0261..b702e34 100644
--- a/src/soc/qualcomm/sc7180/include/soc/aop.h
+++ b/src/soc/qualcomm/sc7180/include/soc/aop.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #ifndef _SOC_QUALCOMM_SC7180_AOP_H__
 #define _SOC_QUALCOMM_SC7180_AOP_H__
diff --git a/src/soc/qualcomm/sc7180/include/soc/clock.h b/src/soc/qualcomm/sc7180/include/soc/clock.h
index a2a7a80..f7c7f38 100644
--- a/src/soc/qualcomm/sc7180/include/soc/clock.h
+++ b/src/soc/qualcomm/sc7180/include/soc/clock.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <soc/addressmap.h>
 #include <types.h>
diff --git a/src/soc/qualcomm/sc7180/include/soc/efuse.h b/src/soc/qualcomm/sc7180/include/soc/efuse.h
index fd14d89..1fe7b40 100644
--- a/src/soc/qualcomm/sc7180/include/soc/efuse.h
+++ b/src/soc/qualcomm/sc7180/include/soc/efuse.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #ifndef __SOC_QUALCOMM_SC7180_EFUSE_ADDRESS_MAP_H__
 #define __SOC_QUALCOMM_SC7180_EFUSE_ADDRESS_MAP_H__
diff --git a/src/soc/qualcomm/sc7180/include/soc/gpio.h b/src/soc/qualcomm/sc7180/include/soc/gpio.h
index b7f4fde..090fbe4 100644
--- a/src/soc/qualcomm/sc7180/include/soc/gpio.h
+++ b/src/soc/qualcomm/sc7180/include/soc/gpio.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #ifndef _SOC_QUALCOMM_SC7180_GPIO_H_
 #define _SOC_QUALCOMM_SC7180_GPIO_H_
diff --git a/src/soc/qualcomm/sc7180/include/soc/memlayout.ld b/src/soc/qualcomm/sc7180/include/soc/memlayout.ld
index 5c2736e..11a1b64 100644
--- a/src/soc/qualcomm/sc7180/include/soc/memlayout.ld
+++ b/src/soc/qualcomm/sc7180/include/soc/memlayout.ld
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <memlayout.h>
 #include <arch/header.ld>
diff --git a/src/soc/qualcomm/sc7180/include/soc/mmu.h b/src/soc/qualcomm/sc7180/include/soc/mmu.h
index 34ff5d7..1e5610c 100644
--- a/src/soc/qualcomm/sc7180/include/soc/mmu.h
+++ b/src/soc/qualcomm/sc7180/include/soc/mmu.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #ifndef _SOC_QUALCOMM_SC7180_MMU_H_
 #define _SOC_QUALCOMM_SC7180_MMU_H_
diff --git a/src/soc/qualcomm/sc7180/include/soc/qcom_qup_se.h b/src/soc/qualcomm/sc7180/include/soc/qcom_qup_se.h
index 221e44a..eaa095c 100644
--- a/src/soc/qualcomm/sc7180/include/soc/qcom_qup_se.h
+++ b/src/soc/qualcomm/sc7180/include/soc/qcom_qup_se.h
@@ -1,14 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #ifndef __SOC_QCOM_QUP_SE_H__
 #define __SOC_QCOM_QUP_SE_H__
diff --git a/src/soc/qualcomm/sc7180/include/soc/qspi.h b/src/soc/qualcomm/sc7180/include/soc/qspi.h
index 0d6fbcb..68f1558 100644
--- a/src/soc/qualcomm/sc7180/include/soc/qspi.h
+++ b/src/soc/qualcomm/sc7180/include/soc/qspi.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 #include <types.h>
 #include <soc/addressmap.h>
 #include <spi-generic.h>
diff --git a/src/soc/qualcomm/sc7180/include/soc/qupv3_i2c.h b/src/soc/qualcomm/sc7180/include/soc/qupv3_i2c.h
index 3eaf0ce..eb92496 100644
--- a/src/soc/qualcomm/sc7180/include/soc/qupv3_i2c.h
+++ b/src/soc/qualcomm/sc7180/include/soc/qupv3_i2c.h
@@ -1,14 +1,5 @@
 /* This file is part of the depthcharge project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #ifndef __I2C_QCOM_HEADER___
 #define __I2C_QCOM_HEADER___
diff --git a/src/soc/qualcomm/sc7180/include/soc/qupv3_spi.h b/src/soc/qualcomm/sc7180/include/soc/qupv3_spi.h
index 172d937..22be099 100644
--- a/src/soc/qualcomm/sc7180/include/soc/qupv3_spi.h
+++ b/src/soc/qualcomm/sc7180/include/soc/qupv3_spi.h
@@ -1,14 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #ifndef __SPI_QUP_QCOM_HEADER___
 #define __SPI_QUP_QCOM_HEADER___
diff --git a/src/soc/qualcomm/sc7180/include/soc/symbols.h b/src/soc/qualcomm/sc7180/include/soc/symbols.h
index 9082f3e..ac4593b 100644
--- a/src/soc/qualcomm/sc7180/include/soc/symbols.h
+++ b/src/soc/qualcomm/sc7180/include/soc/symbols.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #ifndef _SOC_QUALCOMM_SC7180_SYMBOLS_H_
 #define _SOC_QUALCOMM_SC7180_SYMBOLS_H_
diff --git a/src/soc/qualcomm/sc7180/include/soc/usb.h b/src/soc/qualcomm/sc7180/include/soc/usb.h
index 846b0d1..939b2cf 100644
--- a/src/soc/qualcomm/sc7180/include/soc/usb.h
+++ b/src/soc/qualcomm/sc7180/include/soc/usb.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 #include <types.h>
 
 #ifndef _SC7180_USB_H_
diff --git a/src/soc/qualcomm/sc7180/mmu.c b/src/soc/qualcomm/sc7180/mmu.c
index 5eb9b27..6b5c794 100644
--- a/src/soc/qualcomm/sc7180/mmu.c
+++ b/src/soc/qualcomm/sc7180/mmu.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <symbols.h>
 #include <arch/mmu.h>
diff --git a/src/soc/qualcomm/sc7180/qclib.c b/src/soc/qualcomm/sc7180/qclib.c
index 80cc755..c7d50c3 100644
--- a/src/soc/qualcomm/sc7180/qclib.c
+++ b/src/soc/qualcomm/sc7180/qclib.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <cbfs.h>
 #include <fmap.h>
diff --git a/src/soc/qualcomm/sc7180/qcom_qup_se.c b/src/soc/qualcomm/sc7180/qcom_qup_se.c
index 58a1b36..b3747a8 100644
--- a/src/soc/qualcomm/sc7180/qcom_qup_se.c
+++ b/src/soc/qualcomm/sc7180/qcom_qup_se.c
@@ -1,14 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <soc/qcom_qup_se.h>
 
diff --git a/src/soc/qualcomm/sc7180/qspi.c b/src/soc/qualcomm/sc7180/qspi.c
index f670f6d..cf48603 100644
--- a/src/soc/qualcomm/sc7180/qspi.c
+++ b/src/soc/qualcomm/sc7180/qspi.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <spi-generic.h>
 #include <spi_flash.h>
diff --git a/src/soc/qualcomm/sc7180/qupv3_i2c.c b/src/soc/qualcomm/sc7180/qupv3_i2c.c
index 02f92b4..eb6c3dc 100644
--- a/src/soc/qualcomm/sc7180/qupv3_i2c.c
+++ b/src/soc/qualcomm/sc7180/qupv3_i2c.c
@@ -1,14 +1,5 @@
 /* This file is part of the depthcharge project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <assert.h>
 #include <device/i2c_simple.h>
diff --git a/src/soc/qualcomm/sc7180/qupv3_spi.c b/src/soc/qualcomm/sc7180/qupv3_spi.c
index 4d26a29..69255ba 100644
--- a/src/soc/qualcomm/sc7180/qupv3_spi.c
+++ b/src/soc/qualcomm/sc7180/qupv3_spi.c
@@ -1,14 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <assert.h>
 #include <delay.h>
diff --git a/src/soc/qualcomm/sc7180/qupv3_uart.c b/src/soc/qualcomm/sc7180/qupv3_uart.c
index 916d4aa..88e7f13 100644
--- a/src/soc/qualcomm/sc7180/qupv3_uart.c
+++ b/src/soc/qualcomm/sc7180/qupv3_uart.c
@@ -1,14 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <assert.h>
 #include <boot/coreboot_tables.h>
diff --git a/src/soc/qualcomm/sc7180/soc.c b/src/soc/qualcomm/sc7180/soc.c
index 775f4e5..92a9b24 100644
--- a/src/soc/qualcomm/sc7180/soc.c
+++ b/src/soc/qualcomm/sc7180/soc.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <symbols.h>
 #include <device/device.h>
diff --git a/src/soc/qualcomm/sc7180/spi.c b/src/soc/qualcomm/sc7180/spi.c
index 5e62923..fe2e1ed 100644
--- a/src/soc/qualcomm/sc7180/spi.c
+++ b/src/soc/qualcomm/sc7180/spi.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <spi-generic.h>
 #include <spi_flash.h>
diff --git a/src/soc/qualcomm/sc7180/timer.c b/src/soc/qualcomm/sc7180/timer.c
index 085344c..7e62c88 100644
--- a/src/soc/qualcomm/sc7180/timer.c
+++ b/src/soc/qualcomm/sc7180/timer.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <delay.h>
 #include <arch/lib_helpers.h>
diff --git a/src/soc/qualcomm/sc7180/uart_bitbang.c b/src/soc/qualcomm/sc7180/uart_bitbang.c
index 645e6a4..f4ee28f 100644
--- a/src/soc/qualcomm/sc7180/uart_bitbang.c
+++ b/src/soc/qualcomm/sc7180/uart_bitbang.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <console/uart.h>
 #include <gpio.h>
diff --git a/src/soc/qualcomm/sc7180/usb.c b/src/soc/qualcomm/sc7180/usb.c
index bf3e64a..4803196 100644
--- a/src/soc/qualcomm/sc7180/usb.c
+++ b/src/soc/qualcomm/sc7180/usb.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <stdlib.h>
 #include <console/console.h>
diff --git a/src/soc/qualcomm/sdm845/aop_load_reset.c b/src/soc/qualcomm/sdm845/aop_load_reset.c
index b984780..d500567 100644
--- a/src/soc/qualcomm/sdm845/aop_load_reset.c
+++ b/src/soc/qualcomm/sdm845/aop_load_reset.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <cbfs.h>
 #include <console/console.h>
diff --git a/src/soc/qualcomm/sdm845/bootblock.c b/src/soc/qualcomm/sdm845/bootblock.c
index bdc37c1..8065c1d 100644
--- a/src/soc/qualcomm/sdm845/bootblock.c
+++ b/src/soc/qualcomm/sdm845/bootblock.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <bootblock_common.h>
 #include <soc/mmu.h>
diff --git a/src/soc/qualcomm/sdm845/cbmem.c b/src/soc/qualcomm/sdm845/cbmem.c
index 3f654fd..0065a93 100644
--- a/src/soc/qualcomm/sdm845/cbmem.c
+++ b/src/soc/qualcomm/sdm845/cbmem.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <cbmem.h>
 
diff --git a/src/soc/qualcomm/sdm845/clock.c b/src/soc/qualcomm/sdm845/clock.c
index 3816860..dcc7cd8 100644
--- a/src/soc/qualcomm/sdm845/clock.c
+++ b/src/soc/qualcomm/sdm845/clock.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <device/mmio.h>
 #include <types.h>
diff --git a/src/soc/qualcomm/sdm845/include/soc/addressmap.h b/src/soc/qualcomm/sdm845/include/soc/addressmap.h
index e8b00a2..d98c6c5 100644
--- a/src/soc/qualcomm/sdm845/include/soc/addressmap.h
+++ b/src/soc/qualcomm/sdm845/include/soc/addressmap.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #ifndef __SOC_QUALCOMM_SDM845_ADDRESS_MAP_H__
 #define __SOC_QUALCOMM_SDM845_ADDRESS_MAP_H__
diff --git a/src/soc/qualcomm/sdm845/include/soc/aop.h b/src/soc/qualcomm/sdm845/include/soc/aop.h
index 72b97b7..c01e327 100644
--- a/src/soc/qualcomm/sdm845/include/soc/aop.h
+++ b/src/soc/qualcomm/sdm845/include/soc/aop.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #ifndef _SOC_QUALCOMM_SDM845_AOP_H__
 #define _SOC_QUALCOMM_SDM845_AOP_H__
diff --git a/src/soc/qualcomm/sdm845/include/soc/clock.h b/src/soc/qualcomm/sdm845/include/soc/clock.h
index a6e451c..645a78d 100644
--- a/src/soc/qualcomm/sdm845/include/soc/clock.h
+++ b/src/soc/qualcomm/sdm845/include/soc/clock.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <soc/addressmap.h>
 #include <types.h>
diff --git a/src/soc/qualcomm/sdm845/include/soc/efuse.h b/src/soc/qualcomm/sdm845/include/soc/efuse.h
index 0b1adf6..43aeb35 100644
--- a/src/soc/qualcomm/sdm845/include/soc/efuse.h
+++ b/src/soc/qualcomm/sdm845/include/soc/efuse.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #ifndef __SOC_QUALCOMM_SDM845_EFUSE_ADDRESS_MAP_H__
 #define __SOC_QUALCOMM_SDM845_EFUSE_ADDRESS_MAP_H__
diff --git a/src/soc/qualcomm/sdm845/include/soc/gpio.h b/src/soc/qualcomm/sdm845/include/soc/gpio.h
index 8cb7476..47200c5 100644
--- a/src/soc/qualcomm/sdm845/include/soc/gpio.h
+++ b/src/soc/qualcomm/sdm845/include/soc/gpio.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #ifndef _SOC_QUALCOMM_SDM845_GPIO_H_
 #define _SOC_QUALCOMM_SDM845_GPIO_H_
diff --git a/src/soc/qualcomm/sdm845/include/soc/memlayout.ld b/src/soc/qualcomm/sdm845/include/soc/memlayout.ld
index 5c04f49..53c7824 100644
--- a/src/soc/qualcomm/sdm845/include/soc/memlayout.ld
+++ b/src/soc/qualcomm/sdm845/include/soc/memlayout.ld
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <memlayout.h>
 #include <arch/header.ld>
diff --git a/src/soc/qualcomm/sdm845/include/soc/mmu.h b/src/soc/qualcomm/sdm845/include/soc/mmu.h
index 62e9ac2..8258dcc 100644
--- a/src/soc/qualcomm/sdm845/include/soc/mmu.h
+++ b/src/soc/qualcomm/sdm845/include/soc/mmu.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #ifndef _SOC_QUALCOMM_SDM845_MMU_H__
 #define _SOC_QUALCOMM_SDM845_MMU_H__
diff --git a/src/soc/qualcomm/sdm845/include/soc/qspi.h b/src/soc/qualcomm/sdm845/include/soc/qspi.h
index 2359c10..32d514f 100644
--- a/src/soc/qualcomm/sdm845/include/soc/qspi.h
+++ b/src/soc/qualcomm/sdm845/include/soc/qspi.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 #include <types.h>
 #include <soc/addressmap.h>
 #include <spi-generic.h>
diff --git a/src/soc/qualcomm/sdm845/include/soc/symbols.h b/src/soc/qualcomm/sdm845/include/soc/symbols.h
index fa5c1a7..861ff86 100644
--- a/src/soc/qualcomm/sdm845/include/soc/symbols.h
+++ b/src/soc/qualcomm/sdm845/include/soc/symbols.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #ifndef _SOC_QUALCOMM_SDM845_SYMBOLS_H_
 #define _SOC_QUALCOMM_SDM845_SYMBOLS_H_
diff --git a/src/soc/qualcomm/sdm845/include/soc/usb.h b/src/soc/qualcomm/sdm845/include/soc/usb.h
index bb65899..10539bf 100644
--- a/src/soc/qualcomm/sdm845/include/soc/usb.h
+++ b/src/soc/qualcomm/sdm845/include/soc/usb.h
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 #include <types.h>
 
 #ifndef _SDM845_USB_H_
diff --git a/src/soc/qualcomm/sdm845/mmu.c b/src/soc/qualcomm/sdm845/mmu.c
index 906c092..5aa127b 100644
--- a/src/soc/qualcomm/sdm845/mmu.c
+++ b/src/soc/qualcomm/sdm845/mmu.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <symbols.h>
 #include <arch/mmu.h>
diff --git a/src/soc/qualcomm/sdm845/qclib.c b/src/soc/qualcomm/sdm845/qclib.c
index 8be4c9a..dafa3ad 100644
--- a/src/soc/qualcomm/sdm845/qclib.c
+++ b/src/soc/qualcomm/sdm845/qclib.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <cbfs.h>
 #include <fmap.h>
diff --git a/src/soc/qualcomm/sdm845/qspi.c b/src/soc/qualcomm/sdm845/qspi.c
index f0a52f6..7337fd9 100644
--- a/src/soc/qualcomm/sdm845/qspi.c
+++ b/src/soc/qualcomm/sdm845/qspi.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <spi-generic.h>
 #include <spi_flash.h>
diff --git a/src/soc/qualcomm/sdm845/soc.c b/src/soc/qualcomm/sdm845/soc.c
index 1f076c9..468ab54 100644
--- a/src/soc/qualcomm/sdm845/soc.c
+++ b/src/soc/qualcomm/sdm845/soc.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <symbols.h>
 #include <device/device.h>
diff --git a/src/soc/qualcomm/sdm845/spi.c b/src/soc/qualcomm/sdm845/spi.c
index ec068f5..1c98202 100644
--- a/src/soc/qualcomm/sdm845/spi.c
+++ b/src/soc/qualcomm/sdm845/spi.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <spi-generic.h>
 #include <spi_flash.h>
diff --git a/src/soc/qualcomm/sdm845/timer.c b/src/soc/qualcomm/sdm845/timer.c
index 085344c..7e62c88 100644
--- a/src/soc/qualcomm/sdm845/timer.c
+++ b/src/soc/qualcomm/sdm845/timer.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <delay.h>
 #include <arch/lib_helpers.h>
diff --git a/src/soc/qualcomm/sdm845/uart_bitbang.c b/src/soc/qualcomm/sdm845/uart_bitbang.c
index 71913d1..7f1720a 100644
--- a/src/soc/qualcomm/sdm845/uart_bitbang.c
+++ b/src/soc/qualcomm/sdm845/uart_bitbang.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <console/uart.h>
 #include <gpio.h>
diff --git a/src/soc/qualcomm/sdm845/usb.c b/src/soc/qualcomm/sdm845/usb.c
index 6aa0015..65f5ad1 100644
--- a/src/soc/qualcomm/sdm845/usb.c
+++ b/src/soc/qualcomm/sdm845/usb.c
@@ -1,15 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <console/console.h>
 #include <device/mmio.h>
diff --git a/src/soc/rockchip/rk3288/hdmi.c b/src/soc/rockchip/rk3288/hdmi.c
index 20b8752..71bc39d 100644
--- a/src/soc/rockchip/rk3288/hdmi.c
+++ b/src/soc/rockchip/rk3288/hdmi.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /*
  * Designware High-Definition Multimedia Interface (HDMI) driveG
diff --git a/src/soc/rockchip/rk3288/include/soc/hdmi.h b/src/soc/rockchip/rk3288/include/soc/hdmi.h
index eee1743..76d08a2 100644
--- a/src/soc/rockchip/rk3288/include/soc/hdmi.h
+++ b/src/soc/rockchip/rk3288/include/soc/hdmi.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef __SOC_HDMI_H__
 #define __SOC_HDMI_H__
diff --git a/src/soc/samsung/exynos5420/dmc_init_ddr3.c b/src/soc/samsung/exynos5420/dmc_init_ddr3.c
index 90ad932..5a7c45d 100644
--- a/src/soc/samsung/exynos5420/dmc_init_ddr3.c
+++ b/src/soc/samsung/exynos5420/dmc_init_ddr3.c
@@ -1,17 +1,6 @@
 /* This file is part of the coreboot project. */
 /* DDR3 mem setup file for EXYNOS5 based board */
-/*
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <device/mmio.h>
 #include <delay.h>
diff --git a/src/soc/samsung/exynos5420/dp.c b/src/soc/samsung/exynos5420/dp.c
index 101630d..7c2fd9f 100644
--- a/src/soc/samsung/exynos5420/dp.c
+++ b/src/soc/samsung/exynos5420/dp.c
@@ -1,15 +1,4 @@
-/*
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <console/console.h>
 #include <delay.h>
diff --git a/src/soc/samsung/exynos5420/dp_lowlevel.c b/src/soc/samsung/exynos5420/dp_lowlevel.c
index 6bb7351..e53adbb 100644
--- a/src/soc/samsung/exynos5420/dp_lowlevel.c
+++ b/src/soc/samsung/exynos5420/dp_lowlevel.c
@@ -1,15 +1,4 @@
-/*
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <device/mmio.h>
 #include <console/console.h>
diff --git a/src/soc/samsung/exynos5420/fimd.c b/src/soc/samsung/exynos5420/fimd.c
index 20480f4..53c9fe4 100644
--- a/src/soc/samsung/exynos5420/fimd.c
+++ b/src/soc/samsung/exynos5420/fimd.c
@@ -1,15 +1,4 @@
-/*
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <device/mmio.h>
 #include <console/console.h>
diff --git a/src/southbridge/amd/agesa/hudson/smi.c b/src/southbridge/amd/agesa/hudson/smi.c
index 081728a..972d063 100644
--- a/src/southbridge/amd/agesa/hudson/smi.c
+++ b/src/southbridge/amd/agesa/hudson/smi.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /*
  * Utilities for SMM setup
diff --git a/src/southbridge/amd/agesa/hudson/smi.h b/src/southbridge/amd/agesa/hudson/smi.h
index 4e109e4..7670fb7 100644
--- a/src/southbridge/amd/agesa/hudson/smi.h
+++ b/src/southbridge/amd/agesa/hudson/smi.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /*
  * Utilities for SMI handlers and SMM setup
diff --git a/src/southbridge/amd/agesa/hudson/smi_util.c b/src/southbridge/amd/agesa/hudson/smi_util.c
index e53bb70..7258fc2 100644
--- a/src/southbridge/amd/agesa/hudson/smi_util.c
+++ b/src/southbridge/amd/agesa/hudson/smi_util.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /*
  * SMM utilities used in both SMM and normal mode
diff --git a/src/southbridge/amd/agesa/hudson/smihandler.c b/src/southbridge/amd/agesa/hudson/smihandler.c
index 478107c..22170aa 100644
--- a/src/southbridge/amd/agesa/hudson/smihandler.c
+++ b/src/southbridge/amd/agesa/hudson/smihandler.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /*
  * SMI handler for Hudson southbridges
diff --git a/src/southbridge/amd/pi/hudson/smi.c b/src/southbridge/amd/pi/hudson/smi.c
index 081728a..972d063 100644
--- a/src/southbridge/amd/pi/hudson/smi.c
+++ b/src/southbridge/amd/pi/hudson/smi.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /*
  * Utilities for SMM setup
diff --git a/src/southbridge/amd/pi/hudson/smi.h b/src/southbridge/amd/pi/hudson/smi.h
index 19358a2b..c596fcd 100644
--- a/src/southbridge/amd/pi/hudson/smi.h
+++ b/src/southbridge/amd/pi/hudson/smi.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /*
  * Utilities for SMI handlers and SMM setup
diff --git a/src/southbridge/amd/pi/hudson/smi_util.c b/src/southbridge/amd/pi/hudson/smi_util.c
index e53bb70..7258fc2 100644
--- a/src/southbridge/amd/pi/hudson/smi_util.c
+++ b/src/southbridge/amd/pi/hudson/smi_util.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /*
  * SMM utilities used in both SMM and normal mode
diff --git a/src/southbridge/amd/pi/hudson/smihandler.c b/src/southbridge/amd/pi/hudson/smihandler.c
index 478107c..22170aa 100644
--- a/src/southbridge/amd/pi/hudson/smihandler.c
+++ b/src/southbridge/amd/pi/hudson/smihandler.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /*
  * SMI handler for Hudson southbridges
diff --git a/src/southbridge/intel/common/finalize.h b/src/southbridge/intel/common/finalize.h
index 2e70f84..67e039c 100644
--- a/src/southbridge/intel/common/finalize.h
+++ b/src/southbridge/intel/common/finalize.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef SOUTHBRIDGE_INTEL_COMMON_FINALIZE_H
 #define SOUTHBRIDGE_INTEL_COMMON_FINALIZE_H
diff --git a/src/southbridge/intel/common/spi.c b/src/southbridge/intel/common/spi.c
index 5e967af..380940c 100644
--- a/src/southbridge/intel/common/spi.c
+++ b/src/southbridge/intel/common/spi.c
@@ -1,15 +1,4 @@
-/*
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but without any warranty; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #define __SIMPLE_DEVICE__
 
diff --git a/src/southbridge/intel/common/spi.h b/src/southbridge/intel/common/spi.h
index 3c997f8..206a234 100644
--- a/src/southbridge/intel/common/spi.h
+++ b/src/southbridge/intel/common/spi.h
@@ -1,15 +1,6 @@
 /* This file is part of the coreboot project. */
 
-/* This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of
- * the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #ifndef SOUTHBRIDGE_INTEL_SPI_H
 #define SOUTHBRIDGE_INTEL_SPI_H
diff --git a/src/southbridge/intel/i82371eb/bootblock.c b/src/southbridge/intel/i82371eb/bootblock.c
index 6faaa35..db9add0 100644
--- a/src/southbridge/intel/i82371eb/bootblock.c
+++ b/src/southbridge/intel/i82371eb/bootblock.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <stdint.h>
 #include <arch/bootblock.h>
diff --git a/src/southbridge/intel/i82371eb/chip.h b/src/southbridge/intel/i82371eb/chip.h
index 6d42cc1..ab98801 100644
--- a/src/southbridge/intel/i82371eb/chip.h
+++ b/src/southbridge/intel/i82371eb/chip.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef SOUTHBRIDGE_INTEL_I82371EB_CHIP_H
 #define SOUTHBRIDGE_INTEL_I82371EB_CHIP_H
diff --git a/src/southbridge/intel/i82371eb/early_pm.c b/src/southbridge/intel/i82371eb/early_pm.c
index 168d3b2..8da7369 100644
--- a/src/southbridge/intel/i82371eb/early_pm.c
+++ b/src/southbridge/intel/i82371eb/early_pm.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <stdint.h>
 #include <device/pci_ops.h>
diff --git a/src/southbridge/intel/i82371eb/early_smbus.c b/src/southbridge/intel/i82371eb/early_smbus.c
index a7ef1eb..41c324f 100644
--- a/src/southbridge/intel/i82371eb/early_smbus.c
+++ b/src/southbridge/intel/i82371eb/early_smbus.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <stdint.h>
 #include <device/pci_ops.h>
diff --git a/src/southbridge/intel/i82371eb/i82371eb.c b/src/southbridge/intel/i82371eb/i82371eb.c
index ec8745a..f33e3ce 100644
--- a/src/southbridge/intel/i82371eb/i82371eb.c
+++ b/src/southbridge/intel/i82371eb/i82371eb.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /* Note: This code supports the 82371FB/SB/MX/AB/EB/MB and 82437MX. */
 
diff --git a/src/southbridge/intel/i82371eb/i82371eb.h b/src/southbridge/intel/i82371eb/i82371eb.h
index 3433561..d621182 100644
--- a/src/southbridge/intel/i82371eb/i82371eb.h
+++ b/src/southbridge/intel/i82371eb/i82371eb.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef SOUTHBRIDGE_INTEL_I82371EB_I82371EB_H
 #define SOUTHBRIDGE_INTEL_I82371EB_I82371EB_H
diff --git a/src/southbridge/intel/i82371eb/ide.c b/src/southbridge/intel/i82371eb/ide.c
index d2e8614..b2d2aca 100644
--- a/src/southbridge/intel/i82371eb/ide.c
+++ b/src/southbridge/intel/i82371eb/ide.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /* TODO: Check if this really works for all of the southbridges. */
 
diff --git a/src/southbridge/intel/i82371eb/isa.c b/src/southbridge/intel/i82371eb/isa.c
index 4e32c1d..9140545 100644
--- a/src/southbridge/intel/i82371eb/isa.c
+++ b/src/southbridge/intel/i82371eb/isa.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <stdint.h>
 #include <console/console.h>
diff --git a/src/southbridge/intel/i82371eb/smbus.c b/src/southbridge/intel/i82371eb/smbus.c
index 4c1594b..381904c 100644
--- a/src/southbridge/intel/i82371eb/smbus.c
+++ b/src/southbridge/intel/i82371eb/smbus.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <arch/io.h>
 #include <device/pci_ops.h>
diff --git a/src/southbridge/intel/i82371eb/usb.c b/src/southbridge/intel/i82371eb/usb.c
index 80c46b2..c9129a3 100644
--- a/src/southbridge/intel/i82371eb/usb.c
+++ b/src/southbridge/intel/i82371eb/usb.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <stdint.h>
 #include <device/device.h>
diff --git a/src/southbridge/intel/i82371eb/wakeup.c b/src/southbridge/intel/i82371eb/wakeup.c
index 9d219b0..e1f7456 100644
--- a/src/southbridge/intel/i82371eb/wakeup.c
+++ b/src/southbridge/intel/i82371eb/wakeup.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <stdint.h>
 #include <acpi/acpi.h>
diff --git a/src/southbridge/intel/i82801gx/sata.h b/src/southbridge/intel/i82801gx/sata.h
index a4fc6dc..a159f37 100644
--- a/src/southbridge/intel/i82801gx/sata.h
+++ b/src/southbridge/intel/i82801gx/sata.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef I82801GX_SATA_H
 #define I82801GX_SATA_H
diff --git a/src/southbridge/intel/ibexpeak/early_thermal.c b/src/southbridge/intel/ibexpeak/early_thermal.c
index f922698..fbbc9db 100644
--- a/src/southbridge/intel/ibexpeak/early_thermal.c
+++ b/src/southbridge/intel/ibexpeak/early_thermal.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <device/mmio.h>
 #include <device/pci_ops.h>
diff --git a/src/southbridge/ricoh/rl5c476/rl5c476.c b/src/southbridge/ricoh/rl5c476/rl5c476.c
index 3ff08b2..ca8ced8 100644
--- a/src/southbridge/ricoh/rl5c476/rl5c476.c
+++ b/src/southbridge/ricoh/rl5c476/rl5c476.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <device/device.h>
 #include <device/pci.h>
diff --git a/src/southbridge/ricoh/rl5c476/rl5c476.h b/src/southbridge/ricoh/rl5c476/rl5c476.h
index 89220ea..3cbc771 100644
--- a/src/southbridge/ricoh/rl5c476/rl5c476.h
+++ b/src/southbridge/ricoh/rl5c476/rl5c476.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
  /* rl5c476 routines and defines*/
 
diff --git a/src/southbridge/ti/pci1x2x/pci1x2x.c b/src/southbridge/ti/pci1x2x/pci1x2x.c
index 8a16653..653eabe 100644
--- a/src/southbridge/ti/pci1x2x/pci1x2x.c
+++ b/src/southbridge/ti/pci1x2x/pci1x2x.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <device/device.h>
 #include <device/pci.h>
diff --git a/src/southbridge/ti/pci7420/cardbus.c b/src/southbridge/ti/pci7420/cardbus.c
index 211b5bc..6a769ef 100644
--- a/src/southbridge/ti/pci7420/cardbus.c
+++ b/src/southbridge/ti/pci7420/cardbus.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <device/device.h>
 #include <device/pci.h>
diff --git a/src/southbridge/ti/pci7420/chip.h b/src/southbridge/ti/pci7420/chip.h
index a5349d0..114ce8d 100644
--- a/src/southbridge/ti/pci7420/chip.h
+++ b/src/southbridge/ti/pci7420/chip.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #ifndef _SOUTHBRIDGE_TI_PCI7420
 #define _SOUTHBRIDGE_TI_PCI7420
diff --git a/src/southbridge/ti/pci7420/firewire.c b/src/southbridge/ti/pci7420/firewire.c
index 037355e..b5469f2 100644
--- a/src/southbridge/ti/pci7420/firewire.c
+++ b/src/southbridge/ti/pci7420/firewire.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <device/device.h>
 #include <device/pci.h>
diff --git a/src/southbridge/ti/pci7420/pci7420.h b/src/southbridge/ti/pci7420/pci7420.h
index 8b02a50..fac7d0c 100644
--- a/src/southbridge/ti/pci7420/pci7420.h
+++ b/src/southbridge/ti/pci7420/pci7420.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 		     // 0844d060 (old)
 #define SYSCTL	0x80 // 08405061
diff --git a/util/cbfstool/fdt.h b/util/cbfstool/fdt.h
index 126ca95..0af48ab 100644
--- a/util/cbfstool/fdt.h
+++ b/util/cbfstool/fdt.h
@@ -1,15 +1,5 @@
 /* Taken from depthcharge: src/base/device_tree.h */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but without any warranty; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 struct fdt_header {
 	uint32_t magic;
diff --git a/util/ectool/ec.c b/util/ectool/ec.c
index 17a08dc..e008ac4 100644
--- a/util/ectool/ec.c
+++ b/util/ectool/ec.c
@@ -1,14 +1,5 @@
 /* This file is part of the ectool project. */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <stdio.h>
 #include <stdint.h>
diff --git a/util/ectool/ec.h b/util/ectool/ec.h
index b7bc6b9..004bd7d 100644
--- a/util/ectool/ec.h
+++ b/util/ectool/ec.h
@@ -1,15 +1,5 @@
 /* This file is part of the ectool project. */
-/*
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #ifndef _EC_H
 #define _EC_H
diff --git a/util/ectool/ectool.c b/util/ectool/ectool.c
index 21e1023..a2c3eef 100644
--- a/util/ectool/ectool.c
+++ b/util/ectool/ectool.c
@@ -1,15 +1,5 @@
 /* This file is part of the ectool project. */
-/*
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <stdio.h>
 #include <stdint.h>
diff --git a/util/intelmetool/me.c b/util/intelmetool/me.c
index e3df257..b7e2307 100644
--- a/util/intelmetool/me.c
+++ b/util/intelmetool/me.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of
- * the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <pci/pci.h>
 #include <stdio.h>
diff --git a/util/intelmetool/me.h b/util/intelmetool/me.h
index 4e0036e..57b5475 100644
--- a/util/intelmetool/me.h
+++ b/util/intelmetool/me.h
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of
- * the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #ifndef ME_H
 #define ME_H
diff --git a/util/intelmetool/me_status.c b/util/intelmetool/me_status.c
index 77c3ba6..0970394 100644
--- a/util/intelmetool/me_status.c
+++ b/util/intelmetool/me_status.c
@@ -1,16 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of
- * the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <stdio.h>
 #include "me.h"
diff --git a/util/intelmetool/mmap.c b/util/intelmetool/mmap.c
index 70bc422..6200dcb 100644
--- a/util/intelmetool/mmap.c
+++ b/util/intelmetool/mmap.c
@@ -1,15 +1,5 @@
 /* intelmetool */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include "mmap.h"
 #include <errno.h>
diff --git a/util/intelmetool/mmap.h b/util/intelmetool/mmap.h
index ecc327a..57ecca2 100644
--- a/util/intelmetool/mmap.h
+++ b/util/intelmetool/mmap.h
@@ -1,16 +1,5 @@
 /* intelmetool */
-/*
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <inttypes.h>
 #include <stdlib.h>
diff --git a/util/intelmetool/msr.c b/util/intelmetool/msr.c
index d8735a7..263a820 100644
--- a/util/intelmetool/msr.c
+++ b/util/intelmetool/msr.c
@@ -1,15 +1,5 @@
 /* intelmetool */
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <fcntl.h>
 #include <unistd.h>
diff --git a/util/intelmetool/msr.h b/util/intelmetool/msr.h
index c40700f..44008d5 100644
--- a/util/intelmetool/msr.h
+++ b/util/intelmetool/msr.h
@@ -1,16 +1,5 @@
 /* intelmetool */
-/*
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <inttypes.h>
 
diff --git a/util/intelmetool/rcba.c b/util/intelmetool/rcba.c
index d1aaa67..3716bcb 100644
--- a/util/intelmetool/rcba.c
+++ b/util/intelmetool/rcba.c
@@ -1,15 +1,4 @@
-/*
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <stdio.h>
 #include <inttypes.h>
diff --git a/util/intelmetool/rcba.h b/util/intelmetool/rcba.h
index a87fe49..50b16b6 100644
--- a/util/intelmetool/rcba.h
+++ b/util/intelmetool/rcba.h
@@ -1,15 +1,4 @@
-/*
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 int write_rcba32(uint32_t addr, uint32_t val);
 int read_rcba32(uint32_t addr, uint32_t *val);
diff --git a/util/inteltool/ahci.c b/util/inteltool/ahci.c
index 4be40ff..2080e3b 100644
--- a/util/inteltool/ahci.c
+++ b/util/inteltool/ahci.c
@@ -1,16 +1,5 @@
 /* ahci.c: dump AHCI registers */
-/*
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of the
- * License.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <stdio.h>
 #include <stdlib.h>
diff --git a/util/mainboard/google/hatch/template/include/variant/acpi/dptf.asl b/util/mainboard/google/hatch/template/include/variant/acpi/dptf.asl
index 3cc78ae..9b17d45 100644
--- a/util/mainboard/google/hatch/template/include/variant/acpi/dptf.asl
+++ b/util/mainboard/google/hatch/template/include/variant/acpi/dptf.asl
@@ -1,13 +1,4 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <baseboard/acpi/dptf.asl>
diff --git a/util/mainboard/google/hatch/template/include/variant/ec.h b/util/mainboard/google/hatch/template/include/variant/ec.h
index bbcd4a3..b9fb4f1 100644
--- a/util/mainboard/google/hatch/template/include/variant/ec.h
+++ b/util/mainboard/google/hatch/template/include/variant/ec.h
@@ -1,14 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #ifndef VARIANT_EC_H
 #define VARIANT_EC_H
diff --git a/util/mainboard/google/hatch/template/include/variant/gpio.h b/util/mainboard/google/hatch/template/include/variant/gpio.h
index 063c0f5..f37579e 100644
--- a/util/mainboard/google/hatch/template/include/variant/gpio.h
+++ b/util/mainboard/google/hatch/template/include/variant/gpio.h
@@ -1,14 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #ifndef VARIANT_GPIO_H
 #define VARIANT_GPIO_H
diff --git a/util/msrtool/cs5536.c b/util/msrtool/cs5536.c
index 3d03500..ce28c4d 100644
--- a/util/msrtool/cs5536.c
+++ b/util/msrtool/cs5536.c
@@ -1,14 +1,5 @@
 /* This file is part of msrtool. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include "msrtool.h"
 
diff --git a/util/msrtool/darwin.c b/util/msrtool/darwin.c
index efa37fc..a362086 100644
--- a/util/msrtool/darwin.c
+++ b/util/msrtool/darwin.c
@@ -1,15 +1,5 @@
 /* This file is part of msrtool. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <sys/types.h>
 #include <sys/stat.h>
diff --git a/util/msrtool/freebsd.c b/util/msrtool/freebsd.c
index 40cd9a1..1ea4eef 100644
--- a/util/msrtool/freebsd.c
+++ b/util/msrtool/freebsd.c
@@ -1,15 +1,5 @@
 /* This file is part of msrtool. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <sys/types.h>
 #include <sys/stat.h>
diff --git a/util/msrtool/geodegx2.c b/util/msrtool/geodegx2.c
index d6a845f..6f6b982 100644
--- a/util/msrtool/geodegx2.c
+++ b/util/msrtool/geodegx2.c
@@ -1,15 +1,5 @@
 /* This file is part of msrtool. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include "msrtool.h"
 
diff --git a/util/msrtool/geodelx.c b/util/msrtool/geodelx.c
index bac8ec1..aa6f8a7 100644
--- a/util/msrtool/geodelx.c
+++ b/util/msrtool/geodelx.c
@@ -1,15 +1,5 @@
 /* This file is part of msrtool. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include "msrtool.h"
 
diff --git a/util/msrtool/intel_atom.c b/util/msrtool/intel_atom.c
index ac63a26..3e58d94 100644
--- a/util/msrtool/intel_atom.c
+++ b/util/msrtool/intel_atom.c
@@ -1,15 +1,5 @@
 /* This file is part of msrtool. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include "msrtool.h"
 
diff --git a/util/msrtool/intel_core1.c b/util/msrtool/intel_core1.c
index fcb3a91..7f8717e 100644
--- a/util/msrtool/intel_core1.c
+++ b/util/msrtool/intel_core1.c
@@ -1,15 +1,5 @@
 /* This file is part of msrtool. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include "msrtool.h"
 
diff --git a/util/msrtool/intel_core2_early.c b/util/msrtool/intel_core2_early.c
index ea35ac4..4d26531 100644
--- a/util/msrtool/intel_core2_early.c
+++ b/util/msrtool/intel_core2_early.c
@@ -1,15 +1,5 @@
 /* This file is part of msrtool. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include "msrtool.h"
 
diff --git a/util/msrtool/intel_core2_later.c b/util/msrtool/intel_core2_later.c
index 7e1cdfd..ef7cfc5 100644
--- a/util/msrtool/intel_core2_later.c
+++ b/util/msrtool/intel_core2_later.c
@@ -1,15 +1,5 @@
 /* This file is part of msrtool. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include "msrtool.h"
 
diff --git a/util/msrtool/intel_nehalem.c b/util/msrtool/intel_nehalem.c
index 3f472e8..21d8f31 100644
--- a/util/msrtool/intel_nehalem.c
+++ b/util/msrtool/intel_nehalem.c
@@ -1,15 +1,5 @@
 /* This file is part of msrtool. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include "msrtool.h"
 
diff --git a/util/msrtool/intel_pentium3.c b/util/msrtool/intel_pentium3.c
index aedc440..d51d46c 100644
--- a/util/msrtool/intel_pentium3.c
+++ b/util/msrtool/intel_pentium3.c
@@ -1,15 +1,5 @@
 /* This file is part of msrtool. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include "msrtool.h"
 
diff --git a/util/msrtool/intel_pentium3_early.c b/util/msrtool/intel_pentium3_early.c
index 676f134..50cfa24 100644
--- a/util/msrtool/intel_pentium3_early.c
+++ b/util/msrtool/intel_pentium3_early.c
@@ -1,15 +1,5 @@
 /* This file is part of msrtool. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include "msrtool.h"
 
diff --git a/util/msrtool/intel_pentium4_early.c b/util/msrtool/intel_pentium4_early.c
index 249cac8..ac5a1b0 100644
--- a/util/msrtool/intel_pentium4_early.c
+++ b/util/msrtool/intel_pentium4_early.c
@@ -1,15 +1,5 @@
 /* This file is part of msrtool. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include "msrtool.h"
 
diff --git a/util/msrtool/intel_pentium4_later.c b/util/msrtool/intel_pentium4_later.c
index 0b51707..0795ed2 100644
--- a/util/msrtool/intel_pentium4_later.c
+++ b/util/msrtool/intel_pentium4_later.c
@@ -1,15 +1,5 @@
 /* This file is part of msrtool. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include "msrtool.h"
 
diff --git a/util/msrtool/intel_pentium_d.c b/util/msrtool/intel_pentium_d.c
index 28b544b..f58e5d6 100644
--- a/util/msrtool/intel_pentium_d.c
+++ b/util/msrtool/intel_pentium_d.c
@@ -1,15 +1,5 @@
 /* This file is part of msrtool. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include "msrtool.h"
 
diff --git a/util/msrtool/k8.c b/util/msrtool/k8.c
index 96aa6c5..405945d 100644
--- a/util/msrtool/k8.c
+++ b/util/msrtool/k8.c
@@ -1,15 +1,5 @@
 /* This file is part of msrtool. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include "msrtool.h"
 
diff --git a/util/msrtool/linux.c b/util/msrtool/linux.c
index ccf8dbd..428f140 100644
--- a/util/msrtool/linux.c
+++ b/util/msrtool/linux.c
@@ -1,15 +1,5 @@
 /* This file is part of msrtool. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <sys/types.h>
 #include <sys/stat.h>
diff --git a/util/msrtool/msrtool.c b/util/msrtool/msrtool.c
index 13586d8..b4d721a 100644
--- a/util/msrtool/msrtool.c
+++ b/util/msrtool/msrtool.c
@@ -1,15 +1,5 @@
 /* This file is part of msrtool. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <stdio.h>
 #include <stdlib.h>
diff --git a/util/msrtool/msrtool.h b/util/msrtool/msrtool.h
index f6ba668..d1f2eb9 100644
--- a/util/msrtool/msrtool.h
+++ b/util/msrtool/msrtool.h
@@ -1,15 +1,5 @@
 /* This file is part of msrtool. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #ifndef MSRTOOL_H
 #define MSRTOOL_H
diff --git a/util/msrtool/msrutils.c b/util/msrtool/msrutils.c
index 82199a8..58330ff 100644
--- a/util/msrtool/msrutils.c
+++ b/util/msrtool/msrutils.c
@@ -1,15 +1,5 @@
 /* This file is part of msrtool. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <stdio.h>
 #include <string.h>
diff --git a/util/msrtool/sys.c b/util/msrtool/sys.c
index f79391d..f32246e 100644
--- a/util/msrtool/sys.c
+++ b/util/msrtool/sys.c
@@ -1,15 +1,5 @@
 /* This file is part of msrtool. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <pci/pci.h>
 
diff --git a/util/msrtool/via_c7.c b/util/msrtool/via_c7.c
index 9939798..779144e 100644
--- a/util/msrtool/via_c7.c
+++ b/util/msrtool/via_c7.c
@@ -1,15 +1,5 @@
 /* This file is part of msrtool. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include "msrtool.h"
 
diff --git a/util/pgtblgen/pgtblgen.c b/util/pgtblgen/pgtblgen.c
index b8bd0ed..780c91c 100644
--- a/util/pgtblgen/pgtblgen.c
+++ b/util/pgtblgen/pgtblgen.c
@@ -1,15 +1,5 @@
 /* This file is part of pgtblgen. */
-/*
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <stdio.h>
 #include <stdlib.h>
diff --git a/util/vgabios/include/swab.h b/util/vgabios/include/swab.h
index 4b82b62..a93e926 100644
--- a/util/vgabios/include/swab.h
+++ b/util/vgabios/include/swab.h
@@ -1,14 +1,5 @@
 /* This file is part of the coreboot project. */
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 #ifndef _SWAB_H
 #define _SWAB_H