mainboard/amd: Use SPDX for GPL-2.0-only files

Done with sed and God Lines. Only done for C-like code for now.

Change-Id: Iaabbc58a7089b28ebe23df3a04464234ff465486
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40063
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
diff --git a/src/mainboard/amd/gardenia/BiosCallOuts.c b/src/mainboard/amd/gardenia/BiosCallOuts.c
index 06185ec..9da7a55 100644
--- a/src/mainboard/amd/gardenia/BiosCallOuts.c
+++ b/src/mainboard/amd/gardenia/BiosCallOuts.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 */
+/* This file is part of the coreboot project. */
 
 #include <amdblocks/agesawrapper.h>
 #include <amdblocks/BiosCallOuts.h>
diff --git a/src/mainboard/amd/gardenia/OemCustomize.c b/src/mainboard/amd/gardenia/OemCustomize.c
index 0bb9658..88507a6 100644
--- a/src/mainboard/amd/gardenia/OemCustomize.c
+++ b/src/mainboard/amd/gardenia/OemCustomize.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 */
+/* This file is part of the coreboot project. */
 
 #include <chip.h>
 #include <amdblocks/agesawrapper.h>
diff --git a/src/mainboard/amd/gardenia/acpi/gpe.asl b/src/mainboard/amd/gardenia/acpi/gpe.asl
index 63cbd02..a4aed9a 100644
--- a/src/mainboard/amd/gardenia/acpi/gpe.asl
+++ b/src/mainboard/amd/gardenia/acpi/gpe.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 */
+/* This file is part of the coreboot project. */
 
 Scope(\_GPE) {	/* Start Scope GPE */
 
diff --git a/src/mainboard/amd/gardenia/acpi/mainboard.asl b/src/mainboard/amd/gardenia/acpi/mainboard.asl
index b74b07c..30299db 100644
--- a/src/mainboard/amd/gardenia/acpi/mainboard.asl
+++ b/src/mainboard/amd/gardenia/acpi/mainboard.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 */
+/* This file is part of the coreboot project. */
 
 /* Memory related values */
 Name(LOMH, 0x0)	/* Start of unused memory in C0000-E0000 range */
diff --git a/src/mainboard/amd/gardenia/acpi/routing.asl b/src/mainboard/amd/gardenia/acpi/routing.asl
index 7c120dd..642ef8f 100644
--- a/src/mainboard/amd/gardenia/acpi/routing.asl
+++ b/src/mainboard/amd/gardenia/acpi/routing.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 */
+/* This file is part of the coreboot project. */
 
 /*
 #include <arch/acpi.h>
diff --git a/src/mainboard/amd/gardenia/acpi/sleep.asl b/src/mainboard/amd/gardenia/acpi/sleep.asl
index b23f09d..9b0e095 100644
--- a/src/mainboard/amd/gardenia/acpi/sleep.asl
+++ b/src/mainboard/amd/gardenia/acpi/sleep.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 */
+/* This file is part of the coreboot project. */
 
 /* Wake status package */
 Name(WKST,Package(){Zero, Zero})
diff --git a/src/mainboard/amd/gardenia/acpi/usb_oc.asl b/src/mainboard/amd/gardenia/acpi/usb_oc.asl
index 69c42c0..8a4df6fb 100644
--- a/src/mainboard/amd/gardenia/acpi/usb_oc.asl
+++ b/src/mainboard/amd/gardenia/acpi/usb_oc.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 */
+/* This file is part of the coreboot project. */
 
 /* simple name description */
 /*
diff --git a/src/mainboard/amd/gardenia/bootblock/OemCustomize.c b/src/mainboard/amd/gardenia/bootblock/OemCustomize.c
index 710ff78..fdf3956 100644
--- a/src/mainboard/amd/gardenia/bootblock/OemCustomize.c
+++ b/src/mainboard/amd/gardenia/bootblock/OemCustomize.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 */
+/* This file is part of the coreboot project. */
 
 #include <amdblocks/agesawrapper.h>
 
diff --git a/src/mainboard/amd/gardenia/bootblock/bootblock.c b/src/mainboard/amd/gardenia/bootblock/bootblock.c
index c3833f7..27bdc0a 100644
--- a/src/mainboard/amd/gardenia/bootblock/bootblock.c
+++ b/src/mainboard/amd/gardenia/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; 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 */
+/* This file is part of the coreboot project. */
 
 #include <bootblock_common.h>
 #include <soc/southbridge.h>
diff --git a/src/mainboard/amd/gardenia/dsdt.asl b/src/mainboard/amd/gardenia/dsdt.asl
index 6ecea61..4f861cb 100644
--- a/src/mainboard/amd/gardenia/dsdt.asl
+++ b/src/mainboard/amd/gardenia/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; 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 */
+/* This file is part of the coreboot project. */
 
 #define MAINBOARD_HAS_SPEAKER 1
 
diff --git a/src/mainboard/amd/gardenia/gpio.c b/src/mainboard/amd/gardenia/gpio.c
index 1d58a60..b1c6106 100644
--- a/src/mainboard/amd/gardenia/gpio.c
+++ b/src/mainboard/amd/gardenia/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; 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 */
+/* This file is part of the coreboot project. */
 
 #include <soc/southbridge.h>
 #include <soc/gpio.h>
diff --git a/src/mainboard/amd/gardenia/gpio.h b/src/mainboard/amd/gardenia/gpio.h
index da75c10..08cf106 100644
--- a/src/mainboard/amd/gardenia/gpio.h
+++ b/src/mainboard/amd/gardenia/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; 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 */
+/* This file is part of the coreboot project. */
 
 #ifndef MAINBOARD_GPIO_H
 #define MAINBOARD_GPIO_H
diff --git a/src/mainboard/amd/gardenia/irq_tables.c b/src/mainboard/amd/gardenia/irq_tables.c
index 761fd06..8a8cacf 100644
--- a/src/mainboard/amd/gardenia/irq_tables.c
+++ b/src/mainboard/amd/gardenia/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; 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 */
+/* This file is part of the coreboot project. */
 
 #include <console/console.h>
 #include <device/pci_def.h>
diff --git a/src/mainboard/amd/gardenia/mainboard.c b/src/mainboard/amd/gardenia/mainboard.c
index 01c7061..fcbac2f 100644
--- a/src/mainboard/amd/gardenia/mainboard.c
+++ b/src/mainboard/amd/gardenia/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 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 */
+/* This file is part of the coreboot project. */
 
 #include <console/console.h>
 #include <device/device.h>
diff --git a/src/mainboard/amd/gardenia/mptable.c b/src/mainboard/amd/gardenia/mptable.c
index 130a728..008639a 100644
--- a/src/mainboard/amd/gardenia/mptable.c
+++ b/src/mainboard/amd/gardenia/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; 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 */
+/* This file is part of the coreboot project. */
 
 #include <arch/smp/mpspec.h>
 #include <arch/ioapic.h>
diff --git a/src/mainboard/amd/gardenia/romstage.c b/src/mainboard/amd/gardenia/romstage.c
index 979facc..9f66ee0 100644
--- a/src/mainboard/amd/gardenia/romstage.c
+++ b/src/mainboard/amd/gardenia/romstage.c
@@ -1,13 +1,2 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; 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 */
+/* This file is part of the coreboot project. */
diff --git a/src/mainboard/amd/inagua/BiosCallOuts.c b/src/mainboard/amd/inagua/BiosCallOuts.c
index f88929a..1efe362 100644
--- a/src/mainboard/amd/inagua/BiosCallOuts.c
+++ b/src/mainboard/amd/inagua/BiosCallOuts.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 */
+/* This file is part of the coreboot project. */
 
 #include <AGESA.h>
 #include <amdlib.h>
diff --git a/src/mainboard/amd/inagua/OemCustomize.c b/src/mainboard/amd/inagua/OemCustomize.c
index 4e02ba0..ae52246 100644
--- a/src/mainboard/amd/inagua/OemCustomize.c
+++ b/src/mainboard/amd/inagua/OemCustomize.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 */
+/* This file is part of the coreboot project. */
 
 
 #include <AGESA.h>
diff --git a/src/mainboard/amd/inagua/OptionsIds.h b/src/mainboard/amd/inagua/OptionsIds.h
index b4fe940..076c1c2 100644
--- a/src/mainboard/amd/inagua/OptionsIds.h
+++ b/src/mainboard/amd/inagua/OptionsIds.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 */
+/* This file is part of the coreboot project. */
 
 /**
  * @file
diff --git a/src/mainboard/amd/inagua/acpi/gpe.asl b/src/mainboard/amd/inagua/acpi/gpe.asl
index af4e2e4..5788140 100644
--- a/src/mainboard/amd/inagua/acpi/gpe.asl
+++ b/src/mainboard/amd/inagua/acpi/gpe.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 */
+/* This file is part of the coreboot project. */
 
 Scope(\_GPE) {	/* Start Scope GPE */
 
diff --git a/src/mainboard/amd/inagua/acpi/ide.asl b/src/mainboard/amd/inagua/acpi/ide.asl
index 6286ade..c5f0980 100644
--- a/src/mainboard/amd/inagua/acpi/ide.asl
+++ b/src/mainboard/amd/inagua/acpi/ide.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 */
+/* This file is part of the coreboot project. */
 
 /*
 Scope (_SB) {
diff --git a/src/mainboard/amd/inagua/acpi/mainboard.asl b/src/mainboard/amd/inagua/acpi/mainboard.asl
index 3d4abb5..86d8e53 100644
--- a/src/mainboard/amd/inagua/acpi/mainboard.asl
+++ b/src/mainboard/amd/inagua/acpi/mainboard.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 */
+/* This file is part of the coreboot project. */
 
 /* Data to be patched by the BIOS during POST */
 /* FIXME the patching is not done yet! */
diff --git a/src/mainboard/amd/inagua/acpi/routing.asl b/src/mainboard/amd/inagua/acpi/routing.asl
index 51215f5..88024a7 100644
--- a/src/mainboard/amd/inagua/acpi/routing.asl
+++ b/src/mainboard/amd/inagua/acpi/routing.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 */
+/* This file is part of the coreboot project. */
 
 /*
 #include <arch/acpi.h>
diff --git a/src/mainboard/amd/inagua/acpi/sata.asl b/src/mainboard/amd/inagua/acpi/sata.asl
index 9729500..04d1b75 100644
--- a/src/mainboard/amd/inagua/acpi/sata.asl
+++ b/src/mainboard/amd/inagua/acpi/sata.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 */
+/* This file is part of the coreboot project. */
 
 /* simple name description */
 
diff --git a/src/mainboard/amd/inagua/acpi/sleep.asl b/src/mainboard/amd/inagua/acpi/sleep.asl
index 08144ff..0c973a4 100644
--- a/src/mainboard/amd/inagua/acpi/sleep.asl
+++ b/src/mainboard/amd/inagua/acpi/sleep.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 */
+/* This file is part of the coreboot project. */
 
 /* Wake status package */
 Name(WKST,Package(){Zero, Zero})
diff --git a/src/mainboard/amd/inagua/acpi/usb_oc.asl b/src/mainboard/amd/inagua/acpi/usb_oc.asl
index 5b22875..27a737c 100644
--- a/src/mainboard/amd/inagua/acpi/usb_oc.asl
+++ b/src/mainboard/amd/inagua/acpi/usb_oc.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 */
+/* This file is part of the coreboot project. */
 
 /* simple name description */
 /*
diff --git a/src/mainboard/amd/inagua/acpi_tables.c b/src/mainboard/amd/inagua/acpi_tables.c
index 9e30324..02afbdb 100644
--- a/src/mainboard/amd/inagua/acpi_tables.c
+++ b/src/mainboard/amd/inagua/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 */
+/* This file is part of the coreboot project. */
 
 #include <arch/acpi.h>
 #include <arch/ioapic.h>
diff --git a/src/mainboard/amd/inagua/bootblock.c b/src/mainboard/amd/inagua/bootblock.c
index 711d075..0a18ca9 100644
--- a/src/mainboard/amd/inagua/bootblock.c
+++ b/src/mainboard/amd/inagua/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; 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 */
+/* This file is part of the coreboot project. */
 
 #include <bootblock_common.h>
 #include <superio/smsc/kbc1100/kbc1100.h>
diff --git a/src/mainboard/amd/inagua/buildOpts.c b/src/mainboard/amd/inagua/buildOpts.c
index 6ef93c7..512c224 100644
--- a/src/mainboard/amd/inagua/buildOpts.c
+++ b/src/mainboard/amd/inagua/buildOpts.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 */
+/* This file is part of the coreboot project. */
 
 /**
  * @file
diff --git a/src/mainboard/amd/inagua/dsdt.asl b/src/mainboard/amd/inagua/dsdt.asl
index 13df85b..ca149ba 100644
--- a/src/mainboard/amd/inagua/dsdt.asl
+++ b/src/mainboard/amd/inagua/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; 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 */
+/* This file is part of the coreboot project. */
 
 /* DefinitionBlock Statement */
 #include <arch/acpi.h>
diff --git a/src/mainboard/amd/inagua/irq_tables.c b/src/mainboard/amd/inagua/irq_tables.c
index f962314..c9f8f277 100644
--- a/src/mainboard/amd/inagua/irq_tables.c
+++ b/src/mainboard/amd/inagua/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; 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 */
+/* This file is part of the coreboot project. */
 
 #include <console/console.h>
 #include <device/pci_def.h>
diff --git a/src/mainboard/amd/inagua/mainboard.c b/src/mainboard/amd/inagua/mainboard.c
index 87c2602..140528d 100644
--- a/src/mainboard/amd/inagua/mainboard.c
+++ b/src/mainboard/amd/inagua/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 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 */
+/* This file is part of the coreboot project. */
 
 #include <amdblocks/acpimmio.h>
 #include <console/console.h>
diff --git a/src/mainboard/amd/inagua/mptable.c b/src/mainboard/amd/inagua/mptable.c
index e49ccf1..20e249d 100644
--- a/src/mainboard/amd/inagua/mptable.c
+++ b/src/mainboard/amd/inagua/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; 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 */
+/* This file is part of the coreboot project. */
 
 #include <arch/smp/mpspec.h>
 #include <arch/io.h>
diff --git a/src/mainboard/amd/inagua/platform_cfg.h b/src/mainboard/amd/inagua/platform_cfg.h
index f1898e2..28b8df0 100644
--- a/src/mainboard/amd/inagua/platform_cfg.h
+++ b/src/mainboard/amd/inagua/platform_cfg.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 */
+/* This file is part of the coreboot project. */
 
 
 #ifndef _PLATFORM_CFG_H_
diff --git a/src/mainboard/amd/olivehill/BiosCallOuts.c b/src/mainboard/amd/olivehill/BiosCallOuts.c
index c86a227..5202c43 100644
--- a/src/mainboard/amd/olivehill/BiosCallOuts.c
+++ b/src/mainboard/amd/olivehill/BiosCallOuts.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 */
+/* This file is part of the coreboot project. */
 
 #include <AGESA.h>
 #include <northbridge/amd/agesa/BiosCallOuts.h>
diff --git a/src/mainboard/amd/olivehill/OemCustomize.c b/src/mainboard/amd/olivehill/OemCustomize.c
index e207c03..e261171 100644
--- a/src/mainboard/amd/olivehill/OemCustomize.c
+++ b/src/mainboard/amd/olivehill/OemCustomize.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 */
+/* This file is part of the coreboot project. */
 
 #include <AGESA.h>
 #include <PlatformMemoryConfiguration.h>
diff --git a/src/mainboard/amd/olivehill/OptionsIds.h b/src/mainboard/amd/olivehill/OptionsIds.h
index bf0588d..a7e18bb 100644
--- a/src/mainboard/amd/olivehill/OptionsIds.h
+++ b/src/mainboard/amd/olivehill/OptionsIds.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 */
+/* This file is part of the coreboot project. */
 
 /**
  * @file
diff --git a/src/mainboard/amd/olivehill/acpi/gpe.asl b/src/mainboard/amd/olivehill/acpi/gpe.asl
index 72bcf76..4e66be0 100644
--- a/src/mainboard/amd/olivehill/acpi/gpe.asl
+++ b/src/mainboard/amd/olivehill/acpi/gpe.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 */
+/* This file is part of the coreboot project. */
 
 Scope(\_GPE) {	/* Start Scope GPE */
 
diff --git a/src/mainboard/amd/olivehill/acpi/ide.asl b/src/mainboard/amd/olivehill/acpi/ide.asl
index e17d93b..8523767 100644
--- a/src/mainboard/amd/olivehill/acpi/ide.asl
+++ b/src/mainboard/amd/olivehill/acpi/ide.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 */
+/* This file is part of the coreboot project. */
 
 /* No IDE functionality */
 
diff --git a/src/mainboard/amd/olivehill/acpi/mainboard.asl b/src/mainboard/amd/olivehill/acpi/mainboard.asl
index 837292b..e94c9f5 100644
--- a/src/mainboard/amd/olivehill/acpi/mainboard.asl
+++ b/src/mainboard/amd/olivehill/acpi/mainboard.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 */
+/* This file is part of the coreboot project. */
 
 /* Memory related values */
 Name(LOMH, 0x0)	/* Start of unused memory in C0000-E0000 range */
diff --git a/src/mainboard/amd/olivehill/acpi/routing.asl b/src/mainboard/amd/olivehill/acpi/routing.asl
index 0411c2a..7167de7 100644
--- a/src/mainboard/amd/olivehill/acpi/routing.asl
+++ b/src/mainboard/amd/olivehill/acpi/routing.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 */
+/* This file is part of the coreboot project. */
 
 /*
 #include <arch/acpi.h>
diff --git a/src/mainboard/amd/olivehill/acpi/sata.asl b/src/mainboard/amd/olivehill/acpi/sata.asl
index 00d855a..864eb9e 100644
--- a/src/mainboard/amd/olivehill/acpi/sata.asl
+++ b/src/mainboard/amd/olivehill/acpi/sata.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 */
+/* This file is part of the coreboot project. */
 
 /* No SATA functionality */
 
diff --git a/src/mainboard/amd/olivehill/acpi/si.asl b/src/mainboard/amd/olivehill/acpi/si.asl
index 0f8d8b1..3a9e84f 100644
--- a/src/mainboard/amd/olivehill/acpi/si.asl
+++ b/src/mainboard/amd/olivehill/acpi/si.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 */
+/* This file is part of the coreboot project. */
 
 Scope(\_SI) {
 	Method(_SST, 1) {
diff --git a/src/mainboard/amd/olivehill/acpi/sleep.asl b/src/mainboard/amd/olivehill/acpi/sleep.asl
index 9f1f4c7..118e8b6 100644
--- a/src/mainboard/amd/olivehill/acpi/sleep.asl
+++ b/src/mainboard/amd/olivehill/acpi/sleep.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 */
+/* This file is part of the coreboot project. */
 
 /* Wake status package */
 Name(WKST,Package(){Zero, Zero})
diff --git a/src/mainboard/amd/olivehill/acpi/usb_oc.asl b/src/mainboard/amd/olivehill/acpi/usb_oc.asl
index 7ceb70c..4ea18f5 100644
--- a/src/mainboard/amd/olivehill/acpi/usb_oc.asl
+++ b/src/mainboard/amd/olivehill/acpi/usb_oc.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 */
+/* This file is part of the coreboot project. */
 
 /* simple name description */
 /*
diff --git a/src/mainboard/amd/olivehill/acpi_tables.c b/src/mainboard/amd/olivehill/acpi_tables.c
index a40e86f..243a4a6 100644
--- a/src/mainboard/amd/olivehill/acpi_tables.c
+++ b/src/mainboard/amd/olivehill/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 */
+/* This file is part of the coreboot project. */
 
 #include <arch/acpi.h>
 #include <arch/ioapic.h>
diff --git a/src/mainboard/amd/olivehill/bootblock.c b/src/mainboard/amd/olivehill/bootblock.c
index d1f8d60..8a8a319 100644
--- a/src/mainboard/amd/olivehill/bootblock.c
+++ b/src/mainboard/amd/olivehill/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 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 */
+/* This file is part of the coreboot project. */
 
 #include <amdblocks/acpimmio.h>
 #include <bootblock_common.h>
diff --git a/src/mainboard/amd/olivehill/buildOpts.c b/src/mainboard/amd/olivehill/buildOpts.c
index 0b89298..335d759 100644
--- a/src/mainboard/amd/olivehill/buildOpts.c
+++ b/src/mainboard/amd/olivehill/buildOpts.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 */
+/* This file is part of the coreboot project. */
 
 /**
  * @file
diff --git a/src/mainboard/amd/olivehill/dsdt.asl b/src/mainboard/amd/olivehill/dsdt.asl
index 15b241f..1b822e6 100644
--- a/src/mainboard/amd/olivehill/dsdt.asl
+++ b/src/mainboard/amd/olivehill/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; 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 */
+/* This file is part of the coreboot project. */
 
 /* DefinitionBlock Statement */
 #include <arch/acpi.h>
diff --git a/src/mainboard/amd/olivehill/irq_tables.c b/src/mainboard/amd/olivehill/irq_tables.c
index 5f0654a..b8077ff 100644
--- a/src/mainboard/amd/olivehill/irq_tables.c
+++ b/src/mainboard/amd/olivehill/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; 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 */
+/* This file is part of the coreboot project. */
 
 #include <console/console.h>
 #include <device/pci_def.h>
diff --git a/src/mainboard/amd/olivehill/mainboard.c b/src/mainboard/amd/olivehill/mainboard.c
index b3e47f8..963f894 100644
--- a/src/mainboard/amd/olivehill/mainboard.c
+++ b/src/mainboard/amd/olivehill/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 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 */
+/* This file is part of the coreboot project. */
 
 #include <console/console.h>
 #include <device/device.h>
diff --git a/src/mainboard/amd/olivehill/mptable.c b/src/mainboard/amd/olivehill/mptable.c
index 6e1d402..73e6cc4 100644
--- a/src/mainboard/amd/olivehill/mptable.c
+++ b/src/mainboard/amd/olivehill/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; 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 */
+/* This file is part of the coreboot project. */
 
 #include <arch/smp/mpspec.h>
 #include <arch/io.h>
diff --git a/src/mainboard/amd/padmelon/BiosCallOuts.c b/src/mainboard/amd/padmelon/BiosCallOuts.c
index 9ba0a63..c50fefd 100644
--- a/src/mainboard/amd/padmelon/BiosCallOuts.c
+++ b/src/mainboard/amd/padmelon/BiosCallOuts.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 */
+/* This file is part of the coreboot project. */
 
 #include <amdblocks/BiosCallOuts.h>
 
diff --git a/src/mainboard/amd/padmelon/BiosCallOuts.h b/src/mainboard/amd/padmelon/BiosCallOuts.h
index 661aa5a..48e42ce 100644
--- a/src/mainboard/amd/padmelon/BiosCallOuts.h
+++ b/src/mainboard/amd/padmelon/BiosCallOuts.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 */
+/* This file is part of the coreboot project. */
 
 #define FAN_INPUT_INTERNAL_DIODE	0
 #define FAN_INPUT_TEMP0			1
diff --git a/src/mainboard/amd/padmelon/OemCustomize.c b/src/mainboard/amd/padmelon/OemCustomize.c
index 099f41f..074fbff 100644
--- a/src/mainboard/amd/padmelon/OemCustomize.c
+++ b/src/mainboard/amd/padmelon/OemCustomize.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 */
+/* This file is part of the coreboot project. */
 
 #include <chip.h>
 #include <amdblocks/agesawrapper.h>
diff --git a/src/mainboard/amd/padmelon/acpi/gpe.asl b/src/mainboard/amd/padmelon/acpi/gpe.asl
index e306202..3fd653e 100644
--- a/src/mainboard/amd/padmelon/acpi/gpe.asl
+++ b/src/mainboard/amd/padmelon/acpi/gpe.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 */
+/* This file is part of the coreboot project. */
 
 Scope(\_GPE) {	/* Start Scope GPE */
 
diff --git a/src/mainboard/amd/padmelon/acpi/mainboard.asl b/src/mainboard/amd/padmelon/acpi/mainboard.asl
index b74b07c..30299db 100644
--- a/src/mainboard/amd/padmelon/acpi/mainboard.asl
+++ b/src/mainboard/amd/padmelon/acpi/mainboard.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 */
+/* This file is part of the coreboot project. */
 
 /* Memory related values */
 Name(LOMH, 0x0)	/* Start of unused memory in C0000-E0000 range */
diff --git a/src/mainboard/amd/padmelon/acpi/routing.asl b/src/mainboard/amd/padmelon/acpi/routing.asl
index b99befa..fcc65a6 100644
--- a/src/mainboard/amd/padmelon/acpi/routing.asl
+++ b/src/mainboard/amd/padmelon/acpi/routing.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 */
+/* This file is part of the coreboot project. */
 
 /* Routing is in System Bus scope */
 Name(PR0, Package(){
diff --git a/src/mainboard/amd/padmelon/acpi/sleep.asl b/src/mainboard/amd/padmelon/acpi/sleep.asl
index b23f09d..9b0e095 100644
--- a/src/mainboard/amd/padmelon/acpi/sleep.asl
+++ b/src/mainboard/amd/padmelon/acpi/sleep.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 */
+/* This file is part of the coreboot project. */
 
 /* Wake status package */
 Name(WKST,Package(){Zero, Zero})
diff --git a/src/mainboard/amd/padmelon/acpi/usb_oc.asl b/src/mainboard/amd/padmelon/acpi/usb_oc.asl
index e1dc35d..fb88faa 100644
--- a/src/mainboard/amd/padmelon/acpi/usb_oc.asl
+++ b/src/mainboard/amd/padmelon/acpi/usb_oc.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 */
+/* This file is part of the coreboot project. */
 
 /* USB overcurrent mapping pins.   */
 Name(UOM0, 0)
diff --git a/src/mainboard/amd/padmelon/bootblock/OemCustomize.c b/src/mainboard/amd/padmelon/bootblock/OemCustomize.c
index 469b937..3a16d56 100644
--- a/src/mainboard/amd/padmelon/bootblock/OemCustomize.c
+++ b/src/mainboard/amd/padmelon/bootblock/OemCustomize.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 */
+/* This file is part of the coreboot project. */
 
 #include <amdblocks/agesawrapper.h>
 
diff --git a/src/mainboard/amd/padmelon/bootblock/bootblock.c b/src/mainboard/amd/padmelon/bootblock/bootblock.c
index e6bd7d7..df6e591 100644
--- a/src/mainboard/amd/padmelon/bootblock/bootblock.c
+++ b/src/mainboard/amd/padmelon/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; 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 */
+/* This file is part of the coreboot project. */
 
 #include <bootblock_common.h>
 #include <soc/southbridge.h>
diff --git a/src/mainboard/amd/padmelon/dsdt.asl b/src/mainboard/amd/padmelon/dsdt.asl
index 0e45e07..aa8c2c3 100644
--- a/src/mainboard/amd/padmelon/dsdt.asl
+++ b/src/mainboard/amd/padmelon/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; 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 */
+/* This file is part of the coreboot project. */
 
 /* DefinitionBlock Statement */
 #include <arch/acpi.h>
diff --git a/src/mainboard/amd/padmelon/fan_init.c b/src/mainboard/amd/padmelon/fan_init.c
index b6cfd23..398057c 100644
--- a/src/mainboard/amd/padmelon/fan_init.c
+++ b/src/mainboard/amd/padmelon/fan_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; 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 */
+/* This file is part of the coreboot project. */
 
 #include <bootstate.h>
 #include <superio/fintek/common/fan_control.h>
diff --git a/src/mainboard/amd/padmelon/gpio.c b/src/mainboard/amd/padmelon/gpio.c
index ea031bd..8160231 100644
--- a/src/mainboard/amd/padmelon/gpio.c
+++ b/src/mainboard/amd/padmelon/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; 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 */
+/* This file is part of the coreboot project. */
 
 #include <amdblocks/agesawrapper.h>
 #include <amdblocks/BiosCallOuts.h>
diff --git a/src/mainboard/amd/padmelon/gpio.h b/src/mainboard/amd/padmelon/gpio.h
index d95390c..774502a 100644
--- a/src/mainboard/amd/padmelon/gpio.h
+++ b/src/mainboard/amd/padmelon/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; 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 */
+/* This file is part of the coreboot project. */
 
 #ifndef MAINBOARD_GPIO_H
 #define MAINBOARD_GPIO_H
diff --git a/src/mainboard/amd/padmelon/mainboard.c b/src/mainboard/amd/padmelon/mainboard.c
index 4aae6c4..7edd3be 100644
--- a/src/mainboard/amd/padmelon/mainboard.c
+++ b/src/mainboard/amd/padmelon/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 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 */
+/* This file is part of the coreboot project. */
 
 #include <console/console.h>
 #include <device/device.h>
diff --git a/src/mainboard/amd/parmer/BiosCallOuts.c b/src/mainboard/amd/parmer/BiosCallOuts.c
index 690dcb2..7020c65 100644
--- a/src/mainboard/amd/parmer/BiosCallOuts.c
+++ b/src/mainboard/amd/parmer/BiosCallOuts.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 */
+/* This file is part of the coreboot project. */
 
 #include <AGESA.h>
 #include <northbridge/amd/agesa/BiosCallOuts.h>
diff --git a/src/mainboard/amd/parmer/OemCustomize.c b/src/mainboard/amd/parmer/OemCustomize.c
index 2ca9481..208f8b0 100644
--- a/src/mainboard/amd/parmer/OemCustomize.c
+++ b/src/mainboard/amd/parmer/OemCustomize.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 */
+/* This file is part of the coreboot project. */
 
 #include <AGESA.h>
 #include <PlatformMemoryConfiguration.h>
diff --git a/src/mainboard/amd/parmer/OptionsIds.h b/src/mainboard/amd/parmer/OptionsIds.h
index bf0588d..a7e18bb 100644
--- a/src/mainboard/amd/parmer/OptionsIds.h
+++ b/src/mainboard/amd/parmer/OptionsIds.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 */
+/* This file is part of the coreboot project. */
 
 /**
  * @file
diff --git a/src/mainboard/amd/parmer/acpi/gpe.asl b/src/mainboard/amd/parmer/acpi/gpe.asl
index f8e34a8..2e62f8e 100644
--- a/src/mainboard/amd/parmer/acpi/gpe.asl
+++ b/src/mainboard/amd/parmer/acpi/gpe.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 */
+/* This file is part of the coreboot project. */
 
 Scope(\_GPE) {	/* Start Scope GPE */
 
diff --git a/src/mainboard/amd/parmer/acpi/mainboard.asl b/src/mainboard/amd/parmer/acpi/mainboard.asl
index e97cdec..f4330cd 100644
--- a/src/mainboard/amd/parmer/acpi/mainboard.asl
+++ b/src/mainboard/amd/parmer/acpi/mainboard.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 */
+/* This file is part of the coreboot project. */
 
 	/* Data to be patched by the BIOS during POST */
 	/* FIXME the patching is not done yet! */
diff --git a/src/mainboard/amd/parmer/acpi/routing.asl b/src/mainboard/amd/parmer/acpi/routing.asl
index 10b1972..6c5acf3 100644
--- a/src/mainboard/amd/parmer/acpi/routing.asl
+++ b/src/mainboard/amd/parmer/acpi/routing.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 */
+/* This file is part of the coreboot project. */
 
 	/* Routing is in System Bus scope */
 	Name(PR0, Package(){
diff --git a/src/mainboard/amd/parmer/acpi/si.asl b/src/mainboard/amd/parmer/acpi/si.asl
index cc27e98..e46f267 100644
--- a/src/mainboard/amd/parmer/acpi/si.asl
+++ b/src/mainboard/amd/parmer/acpi/si.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 */
+/* This file is part of the coreboot project. */
 	Scope(\_SI) {
 		Method(_SST, 1) {
 			/* DBGO("\\_SI\\_SST\n") */
diff --git a/src/mainboard/amd/parmer/acpi/sleep.asl b/src/mainboard/amd/parmer/acpi/sleep.asl
index d5a1f68..c65979d 100644
--- a/src/mainboard/amd/parmer/acpi/sleep.asl
+++ b/src/mainboard/amd/parmer/acpi/sleep.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 */
+/* This file is part of the coreboot project. */
 
 /* Wake status package */
 Name(WKST,Package(){Zero, Zero})
diff --git a/src/mainboard/amd/parmer/acpi/usb_oc.asl b/src/mainboard/amd/parmer/acpi/usb_oc.asl
index e1dc35d..fb88faa 100644
--- a/src/mainboard/amd/parmer/acpi/usb_oc.asl
+++ b/src/mainboard/amd/parmer/acpi/usb_oc.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 */
+/* This file is part of the coreboot project. */
 
 /* USB overcurrent mapping pins.   */
 Name(UOM0, 0)
diff --git a/src/mainboard/amd/parmer/acpi_tables.c b/src/mainboard/amd/parmer/acpi_tables.c
index be2669e..3eb63c8 100644
--- a/src/mainboard/amd/parmer/acpi_tables.c
+++ b/src/mainboard/amd/parmer/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 */
+/* This file is part of the coreboot project. */
 
 #include <arch/acpi.h>
 #include <arch/ioapic.h>
diff --git a/src/mainboard/amd/parmer/bootblock.c b/src/mainboard/amd/parmer/bootblock.c
index 01587d07..78141dc 100644
--- a/src/mainboard/amd/parmer/bootblock.c
+++ b/src/mainboard/amd/parmer/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; 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 */
+/* This file is part of the coreboot project. */
 
 #include <bootblock_common.h>
 #include <device/pci_ops.h>
diff --git a/src/mainboard/amd/parmer/buildOpts.c b/src/mainboard/amd/parmer/buildOpts.c
index 6f74eac..f3ed24f 100644
--- a/src/mainboard/amd/parmer/buildOpts.c
+++ b/src/mainboard/amd/parmer/buildOpts.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 */
+/* This file is part of the coreboot project. */
 
 /**
  * @file
diff --git a/src/mainboard/amd/parmer/dsdt.asl b/src/mainboard/amd/parmer/dsdt.asl
index 459d18f..20e550f 100644
--- a/src/mainboard/amd/parmer/dsdt.asl
+++ b/src/mainboard/amd/parmer/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; 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 */
+/* This file is part of the coreboot project. */
 
 /* DefinitionBlock Statement */
 #include <arch/acpi.h>
diff --git a/src/mainboard/amd/parmer/irq_tables.c b/src/mainboard/amd/parmer/irq_tables.c
index 5f0654a..b8077ff 100644
--- a/src/mainboard/amd/parmer/irq_tables.c
+++ b/src/mainboard/amd/parmer/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; 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 */
+/* This file is part of the coreboot project. */
 
 #include <console/console.h>
 #include <device/pci_def.h>
diff --git a/src/mainboard/amd/parmer/mainboard.c b/src/mainboard/amd/parmer/mainboard.c
index 79954ac..ee8f49f 100644
--- a/src/mainboard/amd/parmer/mainboard.c
+++ b/src/mainboard/amd/parmer/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 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 */
+/* This file is part of the coreboot project. */
 
 #include <console/console.h>
 #include <device/device.h>
diff --git a/src/mainboard/amd/parmer/mptable.c b/src/mainboard/amd/parmer/mptable.c
index 8ffd517..38009d0 100644
--- a/src/mainboard/amd/parmer/mptable.c
+++ b/src/mainboard/amd/parmer/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; 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 */
+/* This file is part of the coreboot project. */
 
 #include <arch/smp/mpspec.h>
 #include <arch/io.h>
diff --git a/src/mainboard/amd/persimmon/BiosCallOuts.c b/src/mainboard/amd/persimmon/BiosCallOuts.c
index 152860f..8734bfe 100644
--- a/src/mainboard/amd/persimmon/BiosCallOuts.c
+++ b/src/mainboard/amd/persimmon/BiosCallOuts.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 */
+/* This file is part of the coreboot project. */
 
 #include <AGESA.h>
 #include <amdlib.h>
diff --git a/src/mainboard/amd/persimmon/OemCustomize.c b/src/mainboard/amd/persimmon/OemCustomize.c
index 7249a16..3ed6e36 100644
--- a/src/mainboard/amd/persimmon/OemCustomize.c
+++ b/src/mainboard/amd/persimmon/OemCustomize.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 */
+/* This file is part of the coreboot project. */
 
 
 #include <AGESA.h>
diff --git a/src/mainboard/amd/persimmon/OptionsIds.h b/src/mainboard/amd/persimmon/OptionsIds.h
index b4fe940..076c1c2 100644
--- a/src/mainboard/amd/persimmon/OptionsIds.h
+++ b/src/mainboard/amd/persimmon/OptionsIds.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 */
+/* This file is part of the coreboot project. */
 
 /**
  * @file
diff --git a/src/mainboard/amd/persimmon/acpi/gpe.asl b/src/mainboard/amd/persimmon/acpi/gpe.asl
index af4e2e4..5788140 100644
--- a/src/mainboard/amd/persimmon/acpi/gpe.asl
+++ b/src/mainboard/amd/persimmon/acpi/gpe.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 */
+/* This file is part of the coreboot project. */
 
 Scope(\_GPE) {	/* Start Scope GPE */
 
diff --git a/src/mainboard/amd/persimmon/acpi/ide.asl b/src/mainboard/amd/persimmon/acpi/ide.asl
index 6286ade..c5f0980 100644
--- a/src/mainboard/amd/persimmon/acpi/ide.asl
+++ b/src/mainboard/amd/persimmon/acpi/ide.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 */
+/* This file is part of the coreboot project. */
 
 /*
 Scope (_SB) {
diff --git a/src/mainboard/amd/persimmon/acpi/mainboard.asl b/src/mainboard/amd/persimmon/acpi/mainboard.asl
index 3d4abb5..86d8e53 100644
--- a/src/mainboard/amd/persimmon/acpi/mainboard.asl
+++ b/src/mainboard/amd/persimmon/acpi/mainboard.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 */
+/* This file is part of the coreboot project. */
 
 /* Data to be patched by the BIOS during POST */
 /* FIXME the patching is not done yet! */
diff --git a/src/mainboard/amd/persimmon/acpi/routing.asl b/src/mainboard/amd/persimmon/acpi/routing.asl
index 70c5da5..d7dc69a 100644
--- a/src/mainboard/amd/persimmon/acpi/routing.asl
+++ b/src/mainboard/amd/persimmon/acpi/routing.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 */
+/* This file is part of the coreboot project. */
 
 /*
 #include <arch/acpi.h>
diff --git a/src/mainboard/amd/persimmon/acpi/sata.asl b/src/mainboard/amd/persimmon/acpi/sata.asl
index 9729500..04d1b75 100644
--- a/src/mainboard/amd/persimmon/acpi/sata.asl
+++ b/src/mainboard/amd/persimmon/acpi/sata.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 */
+/* This file is part of the coreboot project. */
 
 /* simple name description */
 
diff --git a/src/mainboard/amd/persimmon/acpi/sleep.asl b/src/mainboard/amd/persimmon/acpi/sleep.asl
index 08144ff..0c973a4 100644
--- a/src/mainboard/amd/persimmon/acpi/sleep.asl
+++ b/src/mainboard/amd/persimmon/acpi/sleep.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 */
+/* This file is part of the coreboot project. */
 
 /* Wake status package */
 Name(WKST,Package(){Zero, Zero})
diff --git a/src/mainboard/amd/persimmon/acpi/superio.asl b/src/mainboard/amd/persimmon/acpi/superio.asl
index daf6e91..21fdfe9 100644
--- a/src/mainboard/amd/persimmon/acpi/superio.asl
+++ b/src/mainboard/amd/persimmon/acpi/superio.asl
@@ -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 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 */
+/* This file is part of the coreboot project. */
 
 /* No Super I/O device or functionality yet */
diff --git a/src/mainboard/amd/persimmon/acpi/usb_oc.asl b/src/mainboard/amd/persimmon/acpi/usb_oc.asl
index 5b22875..27a737c 100644
--- a/src/mainboard/amd/persimmon/acpi/usb_oc.asl
+++ b/src/mainboard/amd/persimmon/acpi/usb_oc.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 */
+/* This file is part of the coreboot project. */
 
 /* simple name description */
 /*
diff --git a/src/mainboard/amd/persimmon/acpi_tables.c b/src/mainboard/amd/persimmon/acpi_tables.c
index 9e30324..02afbdb 100644
--- a/src/mainboard/amd/persimmon/acpi_tables.c
+++ b/src/mainboard/amd/persimmon/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 */
+/* This file is part of the coreboot project. */
 
 #include <arch/acpi.h>
 #include <arch/ioapic.h>
diff --git a/src/mainboard/amd/persimmon/bootblock.c b/src/mainboard/amd/persimmon/bootblock.c
index 4afb097..b0bb317 100644
--- a/src/mainboard/amd/persimmon/bootblock.c
+++ b/src/mainboard/amd/persimmon/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; 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 */
+/* This file is part of the coreboot project. */
 
 #include <bootblock_common.h>
 #include <superio/fintek/common/fintek.h>
diff --git a/src/mainboard/amd/persimmon/buildOpts.c b/src/mainboard/amd/persimmon/buildOpts.c
index ceb6b88..8c97f07 100644
--- a/src/mainboard/amd/persimmon/buildOpts.c
+++ b/src/mainboard/amd/persimmon/buildOpts.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 */
+/* This file is part of the coreboot project. */
 
 /**
  * @file
diff --git a/src/mainboard/amd/persimmon/dsdt.asl b/src/mainboard/amd/persimmon/dsdt.asl
index 13df85b..ca149ba 100644
--- a/src/mainboard/amd/persimmon/dsdt.asl
+++ b/src/mainboard/amd/persimmon/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; 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 */
+/* This file is part of the coreboot project. */
 
 /* DefinitionBlock Statement */
 #include <arch/acpi.h>
diff --git a/src/mainboard/amd/persimmon/irq_tables.c b/src/mainboard/amd/persimmon/irq_tables.c
index f962314..c9f8f277 100644
--- a/src/mainboard/amd/persimmon/irq_tables.c
+++ b/src/mainboard/amd/persimmon/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; 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 */
+/* This file is part of the coreboot project. */
 
 #include <console/console.h>
 #include <device/pci_def.h>
diff --git a/src/mainboard/amd/persimmon/mainboard.c b/src/mainboard/amd/persimmon/mainboard.c
index 2180241..c3df321 100644
--- a/src/mainboard/amd/persimmon/mainboard.c
+++ b/src/mainboard/amd/persimmon/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 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 */
+/* This file is part of the coreboot project. */
 
 #include <amdblocks/acpimmio.h>
 #include <console/console.h>
diff --git a/src/mainboard/amd/persimmon/mptable.c b/src/mainboard/amd/persimmon/mptable.c
index 7b8476d..e932f93 100644
--- a/src/mainboard/amd/persimmon/mptable.c
+++ b/src/mainboard/amd/persimmon/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; 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 */
+/* This file is part of the coreboot project. */
 
 #include <arch/smp/mpspec.h>
 #include <stdint.h>
diff --git a/src/mainboard/amd/persimmon/platform_cfg.h b/src/mainboard/amd/persimmon/platform_cfg.h
index 212c4bd..8e78f48 100644
--- a/src/mainboard/amd/persimmon/platform_cfg.h
+++ b/src/mainboard/amd/persimmon/platform_cfg.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 */
+/* This file is part of the coreboot project. */
 
 
 #ifndef _PLATFORM_CFG_H_
diff --git a/src/mainboard/amd/south_station/BiosCallOuts.c b/src/mainboard/amd/south_station/BiosCallOuts.c
index 751822b..acdbb62 100644
--- a/src/mainboard/amd/south_station/BiosCallOuts.c
+++ b/src/mainboard/amd/south_station/BiosCallOuts.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 */
+/* This file is part of the coreboot project. */
 
 #include <AGESA.h>
 #include <amdlib.h>
diff --git a/src/mainboard/amd/south_station/OemCustomize.c b/src/mainboard/amd/south_station/OemCustomize.c
index 722d749..7887402 100644
--- a/src/mainboard/amd/south_station/OemCustomize.c
+++ b/src/mainboard/amd/south_station/OemCustomize.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 */
+/* This file is part of the coreboot project. */
 
 
 #include <AGESA.h>
diff --git a/src/mainboard/amd/south_station/OptionsIds.h b/src/mainboard/amd/south_station/OptionsIds.h
index b4fe940..076c1c2 100644
--- a/src/mainboard/amd/south_station/OptionsIds.h
+++ b/src/mainboard/amd/south_station/OptionsIds.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 */
+/* This file is part of the coreboot project. */
 
 /**
  * @file
diff --git a/src/mainboard/amd/south_station/acpi/gpe.asl b/src/mainboard/amd/south_station/acpi/gpe.asl
index c8ff6ea..fb0db3a 100644
--- a/src/mainboard/amd/south_station/acpi/gpe.asl
+++ b/src/mainboard/amd/south_station/acpi/gpe.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 */
+/* This file is part of the coreboot project. */
 
 Scope(\_GPE) {	/* Start Scope GPE */
 
diff --git a/src/mainboard/amd/south_station/acpi/ide.asl b/src/mainboard/amd/south_station/acpi/ide.asl
index 6286ade..c5f0980 100644
--- a/src/mainboard/amd/south_station/acpi/ide.asl
+++ b/src/mainboard/amd/south_station/acpi/ide.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 */
+/* This file is part of the coreboot project. */
 
 /*
 Scope (_SB) {
diff --git a/src/mainboard/amd/south_station/acpi/mainboard.asl b/src/mainboard/amd/south_station/acpi/mainboard.asl
index 3d4abb5..86d8e53 100644
--- a/src/mainboard/amd/south_station/acpi/mainboard.asl
+++ b/src/mainboard/amd/south_station/acpi/mainboard.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 */
+/* This file is part of the coreboot project. */
 
 /* Data to be patched by the BIOS during POST */
 /* FIXME the patching is not done yet! */
diff --git a/src/mainboard/amd/south_station/acpi/routing.asl b/src/mainboard/amd/south_station/acpi/routing.asl
index 51215f5..88024a7 100644
--- a/src/mainboard/amd/south_station/acpi/routing.asl
+++ b/src/mainboard/amd/south_station/acpi/routing.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 */
+/* This file is part of the coreboot project. */
 
 /*
 #include <arch/acpi.h>
diff --git a/src/mainboard/amd/south_station/acpi/sata.asl b/src/mainboard/amd/south_station/acpi/sata.asl
index 9729500..04d1b75 100644
--- a/src/mainboard/amd/south_station/acpi/sata.asl
+++ b/src/mainboard/amd/south_station/acpi/sata.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 */
+/* This file is part of the coreboot project. */
 
 /* simple name description */
 
diff --git a/src/mainboard/amd/south_station/acpi/sleep.asl b/src/mainboard/amd/south_station/acpi/sleep.asl
index f54fe2a..5b059d4 100644
--- a/src/mainboard/amd/south_station/acpi/sleep.asl
+++ b/src/mainboard/amd/south_station/acpi/sleep.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 */
+/* This file is part of the coreboot project. */
 
 /* Wake status package */
 Name(WKST,Package(){Zero, Zero})
diff --git a/src/mainboard/amd/south_station/acpi/usb_oc.asl b/src/mainboard/amd/south_station/acpi/usb_oc.asl
index 8112d85..b38f7fd 100644
--- a/src/mainboard/amd/south_station/acpi/usb_oc.asl
+++ b/src/mainboard/amd/south_station/acpi/usb_oc.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 */
+/* This file is part of the coreboot project. */
 
 /* simple name description */
 /*
diff --git a/src/mainboard/amd/south_station/acpi_tables.c b/src/mainboard/amd/south_station/acpi_tables.c
index 9e30324..02afbdb 100644
--- a/src/mainboard/amd/south_station/acpi_tables.c
+++ b/src/mainboard/amd/south_station/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 */
+/* This file is part of the coreboot project. */
 
 #include <arch/acpi.h>
 #include <arch/ioapic.h>
diff --git a/src/mainboard/amd/south_station/bootblock.c b/src/mainboard/amd/south_station/bootblock.c
index 4afb097..b0bb317 100644
--- a/src/mainboard/amd/south_station/bootblock.c
+++ b/src/mainboard/amd/south_station/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; 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 */
+/* This file is part of the coreboot project. */
 
 #include <bootblock_common.h>
 #include <superio/fintek/common/fintek.h>
diff --git a/src/mainboard/amd/south_station/buildOpts.c b/src/mainboard/amd/south_station/buildOpts.c
index e6e3e8e..7bcb93b 100644
--- a/src/mainboard/amd/south_station/buildOpts.c
+++ b/src/mainboard/amd/south_station/buildOpts.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 */
+/* This file is part of the coreboot project. */
 
 /**
  * @file
diff --git a/src/mainboard/amd/south_station/dsdt.asl b/src/mainboard/amd/south_station/dsdt.asl
index 13df85b..ca149ba 100644
--- a/src/mainboard/amd/south_station/dsdt.asl
+++ b/src/mainboard/amd/south_station/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; 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 */
+/* This file is part of the coreboot project. */
 
 /* DefinitionBlock Statement */
 #include <arch/acpi.h>
diff --git a/src/mainboard/amd/south_station/irq_tables.c b/src/mainboard/amd/south_station/irq_tables.c
index f962314..c9f8f277 100644
--- a/src/mainboard/amd/south_station/irq_tables.c
+++ b/src/mainboard/amd/south_station/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; 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 */
+/* This file is part of the coreboot project. */
 
 #include <console/console.h>
 #include <device/pci_def.h>
diff --git a/src/mainboard/amd/south_station/mainboard.c b/src/mainboard/amd/south_station/mainboard.c
index 0e86c73..7fc3a90 100644
--- a/src/mainboard/amd/south_station/mainboard.c
+++ b/src/mainboard/amd/south_station/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 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 */
+/* This file is part of the coreboot project. */
 
 #include <amdblocks/acpimmio.h>
 #include <console/console.h>
diff --git a/src/mainboard/amd/south_station/mptable.c b/src/mainboard/amd/south_station/mptable.c
index 5f1413d..87747b7 100644
--- a/src/mainboard/amd/south_station/mptable.c
+++ b/src/mainboard/amd/south_station/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; 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 */
+/* This file is part of the coreboot project. */
 
 #include <arch/smp/mpspec.h>
 #include <arch/io.h>
diff --git a/src/mainboard/amd/south_station/platform_cfg.h b/src/mainboard/amd/south_station/platform_cfg.h
index f1898e2..28b8df0 100644
--- a/src/mainboard/amd/south_station/platform_cfg.h
+++ b/src/mainboard/amd/south_station/platform_cfg.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 */
+/* This file is part of the coreboot project. */
 
 
 #ifndef _PLATFORM_CFG_H_
diff --git a/src/mainboard/amd/thatcher/BiosCallOuts.c b/src/mainboard/amd/thatcher/BiosCallOuts.c
index 77ae68a..21ffa05 100644
--- a/src/mainboard/amd/thatcher/BiosCallOuts.c
+++ b/src/mainboard/amd/thatcher/BiosCallOuts.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 */
+/* This file is part of the coreboot project. */
 
 #include <AGESA.h>
 #include <northbridge/amd/agesa/BiosCallOuts.h>
diff --git a/src/mainboard/amd/thatcher/OemCustomize.c b/src/mainboard/amd/thatcher/OemCustomize.c
index 3133c9e..69a8528 100644
--- a/src/mainboard/amd/thatcher/OemCustomize.c
+++ b/src/mainboard/amd/thatcher/OemCustomize.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 */
+/* This file is part of the coreboot project. */
 
 #include <AGESA.h>
 #include <PlatformMemoryConfiguration.h>
diff --git a/src/mainboard/amd/thatcher/OptionsIds.h b/src/mainboard/amd/thatcher/OptionsIds.h
index bf0588d..a7e18bb 100644
--- a/src/mainboard/amd/thatcher/OptionsIds.h
+++ b/src/mainboard/amd/thatcher/OptionsIds.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 */
+/* This file is part of the coreboot project. */
 
 /**
  * @file
diff --git a/src/mainboard/amd/thatcher/acpi/cpstate.asl b/src/mainboard/amd/thatcher/acpi/cpstate.asl
index 4a49f6b..8636152 100644
--- a/src/mainboard/amd/thatcher/acpi/cpstate.asl
+++ b/src/mainboard/amd/thatcher/acpi/cpstate.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 */
+/* This file is part of the coreboot project. */
 
 /* This file defines the processor and performance state capability
  * for each core in the system.  It is included into the DSDT for each
diff --git a/src/mainboard/amd/thatcher/acpi/gpe.asl b/src/mainboard/amd/thatcher/acpi/gpe.asl
index f8e34a8..2e62f8e 100644
--- a/src/mainboard/amd/thatcher/acpi/gpe.asl
+++ b/src/mainboard/amd/thatcher/acpi/gpe.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 */
+/* This file is part of the coreboot project. */
 
 Scope(\_GPE) {	/* Start Scope GPE */
 
diff --git a/src/mainboard/amd/thatcher/acpi/mainboard.asl b/src/mainboard/amd/thatcher/acpi/mainboard.asl
index e97cdec..f4330cd 100644
--- a/src/mainboard/amd/thatcher/acpi/mainboard.asl
+++ b/src/mainboard/amd/thatcher/acpi/mainboard.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 */
+/* This file is part of the coreboot project. */
 
 	/* Data to be patched by the BIOS during POST */
 	/* FIXME the patching is not done yet! */
diff --git a/src/mainboard/amd/thatcher/acpi/routing.asl b/src/mainboard/amd/thatcher/acpi/routing.asl
index 10b1972..6c5acf3 100644
--- a/src/mainboard/amd/thatcher/acpi/routing.asl
+++ b/src/mainboard/amd/thatcher/acpi/routing.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 */
+/* This file is part of the coreboot project. */
 
 	/* Routing is in System Bus scope */
 	Name(PR0, Package(){
diff --git a/src/mainboard/amd/thatcher/acpi/si.asl b/src/mainboard/amd/thatcher/acpi/si.asl
index cc27e98..e46f267 100644
--- a/src/mainboard/amd/thatcher/acpi/si.asl
+++ b/src/mainboard/amd/thatcher/acpi/si.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 */
+/* This file is part of the coreboot project. */
 	Scope(\_SI) {
 		Method(_SST, 1) {
 			/* DBGO("\\_SI\\_SST\n") */
diff --git a/src/mainboard/amd/thatcher/acpi/sleep.asl b/src/mainboard/amd/thatcher/acpi/sleep.asl
index 1d86801..46fd0c7 100644
--- a/src/mainboard/amd/thatcher/acpi/sleep.asl
+++ b/src/mainboard/amd/thatcher/acpi/sleep.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 */
+/* This file is part of the coreboot project. */
 
 /* Wake status package */
 Name(WKST,Package(){Zero, Zero})
diff --git a/src/mainboard/amd/thatcher/acpi/usb_oc.asl b/src/mainboard/amd/thatcher/acpi/usb_oc.asl
index e1dc35d..fb88faa 100644
--- a/src/mainboard/amd/thatcher/acpi/usb_oc.asl
+++ b/src/mainboard/amd/thatcher/acpi/usb_oc.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 */
+/* This file is part of the coreboot project. */
 
 /* USB overcurrent mapping pins.   */
 Name(UOM0, 0)
diff --git a/src/mainboard/amd/thatcher/acpi_tables.c b/src/mainboard/amd/thatcher/acpi_tables.c
index be2669e..3eb63c8 100644
--- a/src/mainboard/amd/thatcher/acpi_tables.c
+++ b/src/mainboard/amd/thatcher/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 */
+/* This file is part of the coreboot project. */
 
 #include <arch/acpi.h>
 #include <arch/ioapic.h>
diff --git a/src/mainboard/amd/thatcher/bootblock.c b/src/mainboard/amd/thatcher/bootblock.c
index d251025..9afafaf 100644
--- a/src/mainboard/amd/thatcher/bootblock.c
+++ b/src/mainboard/amd/thatcher/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 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 */
+/* This file is part of the coreboot project. */
 
 #include <amdblocks/acpimmio.h>
 #include <bootblock_common.h>
diff --git a/src/mainboard/amd/thatcher/buildOpts.c b/src/mainboard/amd/thatcher/buildOpts.c
index 417548b..23eb0a1 100644
--- a/src/mainboard/amd/thatcher/buildOpts.c
+++ b/src/mainboard/amd/thatcher/buildOpts.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 */
+/* This file is part of the coreboot project. */
 
 /**
  * @file
diff --git a/src/mainboard/amd/thatcher/dsdt.asl b/src/mainboard/amd/thatcher/dsdt.asl
index 459d18f..20e550f 100644
--- a/src/mainboard/amd/thatcher/dsdt.asl
+++ b/src/mainboard/amd/thatcher/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; 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 */
+/* This file is part of the coreboot project. */
 
 /* DefinitionBlock Statement */
 #include <arch/acpi.h>
diff --git a/src/mainboard/amd/thatcher/irq_tables.c b/src/mainboard/amd/thatcher/irq_tables.c
index 5f0654a..b8077ff 100644
--- a/src/mainboard/amd/thatcher/irq_tables.c
+++ b/src/mainboard/amd/thatcher/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; 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 */
+/* This file is part of the coreboot project. */
 
 #include <console/console.h>
 #include <device/pci_def.h>
diff --git a/src/mainboard/amd/thatcher/mainboard.c b/src/mainboard/amd/thatcher/mainboard.c
index 7218afa..b481c09 100644
--- a/src/mainboard/amd/thatcher/mainboard.c
+++ b/src/mainboard/amd/thatcher/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 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 */
+/* This file is part of the coreboot project. */
 
 #include <console/console.h>
 #include <device/device.h>
diff --git a/src/mainboard/amd/thatcher/mptable.c b/src/mainboard/amd/thatcher/mptable.c
index e23b017..7d15eb3 100644
--- a/src/mainboard/amd/thatcher/mptable.c
+++ b/src/mainboard/amd/thatcher/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; 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 */
+/* This file is part of the coreboot project. */
 
 #include <arch/smp/mpspec.h>
 #include <arch/io.h>
diff --git a/src/mainboard/amd/union_station/BiosCallOuts.c b/src/mainboard/amd/union_station/BiosCallOuts.c
index 3175f4c..fc31ed0 100644
--- a/src/mainboard/amd/union_station/BiosCallOuts.c
+++ b/src/mainboard/amd/union_station/BiosCallOuts.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 */
+/* This file is part of the coreboot project. */
 
 #include <AGESA.h>
 #include <amdlib.h>
diff --git a/src/mainboard/amd/union_station/OemCustomize.c b/src/mainboard/amd/union_station/OemCustomize.c
index 8192510..57004f1 100644
--- a/src/mainboard/amd/union_station/OemCustomize.c
+++ b/src/mainboard/amd/union_station/OemCustomize.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 */
+/* This file is part of the coreboot project. */
 
 #include <AGESA.h>
 #include <PlatformMemoryConfiguration.h>
diff --git a/src/mainboard/amd/union_station/OptionsIds.h b/src/mainboard/amd/union_station/OptionsIds.h
index b4fe940..076c1c2 100644
--- a/src/mainboard/amd/union_station/OptionsIds.h
+++ b/src/mainboard/amd/union_station/OptionsIds.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 */
+/* This file is part of the coreboot project. */
 
 /**
  * @file
diff --git a/src/mainboard/amd/union_station/acpi/gpe.asl b/src/mainboard/amd/union_station/acpi/gpe.asl
index c8ff6ea..fb0db3a 100644
--- a/src/mainboard/amd/union_station/acpi/gpe.asl
+++ b/src/mainboard/amd/union_station/acpi/gpe.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 */
+/* This file is part of the coreboot project. */
 
 Scope(\_GPE) {	/* Start Scope GPE */
 
diff --git a/src/mainboard/amd/union_station/acpi/ide.asl b/src/mainboard/amd/union_station/acpi/ide.asl
index 6286ade..c5f0980 100644
--- a/src/mainboard/amd/union_station/acpi/ide.asl
+++ b/src/mainboard/amd/union_station/acpi/ide.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 */
+/* This file is part of the coreboot project. */
 
 /*
 Scope (_SB) {
diff --git a/src/mainboard/amd/union_station/acpi/mainboard.asl b/src/mainboard/amd/union_station/acpi/mainboard.asl
index 3d4abb5..86d8e53 100644
--- a/src/mainboard/amd/union_station/acpi/mainboard.asl
+++ b/src/mainboard/amd/union_station/acpi/mainboard.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 */
+/* This file is part of the coreboot project. */
 
 /* Data to be patched by the BIOS during POST */
 /* FIXME the patching is not done yet! */
diff --git a/src/mainboard/amd/union_station/acpi/routing.asl b/src/mainboard/amd/union_station/acpi/routing.asl
index 51215f5..88024a7 100644
--- a/src/mainboard/amd/union_station/acpi/routing.asl
+++ b/src/mainboard/amd/union_station/acpi/routing.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 */
+/* This file is part of the coreboot project. */
 
 /*
 #include <arch/acpi.h>
diff --git a/src/mainboard/amd/union_station/acpi/sata.asl b/src/mainboard/amd/union_station/acpi/sata.asl
index 9729500..04d1b75 100644
--- a/src/mainboard/amd/union_station/acpi/sata.asl
+++ b/src/mainboard/amd/union_station/acpi/sata.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 */
+/* This file is part of the coreboot project. */
 
 /* simple name description */
 
diff --git a/src/mainboard/amd/union_station/acpi/sleep.asl b/src/mainboard/amd/union_station/acpi/sleep.asl
index f54fe2a..5b059d4 100644
--- a/src/mainboard/amd/union_station/acpi/sleep.asl
+++ b/src/mainboard/amd/union_station/acpi/sleep.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 */
+/* This file is part of the coreboot project. */
 
 /* Wake status package */
 Name(WKST,Package(){Zero, Zero})
diff --git a/src/mainboard/amd/union_station/acpi/usb_oc.asl b/src/mainboard/amd/union_station/acpi/usb_oc.asl
index 8112d85..b38f7fd 100644
--- a/src/mainboard/amd/union_station/acpi/usb_oc.asl
+++ b/src/mainboard/amd/union_station/acpi/usb_oc.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 */
+/* This file is part of the coreboot project. */
 
 /* simple name description */
 /*
diff --git a/src/mainboard/amd/union_station/acpi_tables.c b/src/mainboard/amd/union_station/acpi_tables.c
index 9e30324..02afbdb 100644
--- a/src/mainboard/amd/union_station/acpi_tables.c
+++ b/src/mainboard/amd/union_station/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 */
+/* This file is part of the coreboot project. */
 
 #include <arch/acpi.h>
 #include <arch/ioapic.h>
diff --git a/src/mainboard/amd/union_station/bootblock.c b/src/mainboard/amd/union_station/bootblock.c
index ec565a8..fea6a69 100644
--- a/src/mainboard/amd/union_station/bootblock.c
+++ b/src/mainboard/amd/union_station/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; 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 */
+/* This file is part of the coreboot project. */
 
 #include <bootblock_common.h>
 
diff --git a/src/mainboard/amd/union_station/buildOpts.c b/src/mainboard/amd/union_station/buildOpts.c
index e6e3e8e..7bcb93b 100644
--- a/src/mainboard/amd/union_station/buildOpts.c
+++ b/src/mainboard/amd/union_station/buildOpts.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 */
+/* This file is part of the coreboot project. */
 
 /**
  * @file
diff --git a/src/mainboard/amd/union_station/dsdt.asl b/src/mainboard/amd/union_station/dsdt.asl
index 13df85b..ca149ba 100644
--- a/src/mainboard/amd/union_station/dsdt.asl
+++ b/src/mainboard/amd/union_station/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; 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 */
+/* This file is part of the coreboot project. */
 
 /* DefinitionBlock Statement */
 #include <arch/acpi.h>
diff --git a/src/mainboard/amd/union_station/irq_tables.c b/src/mainboard/amd/union_station/irq_tables.c
index f962314..c9f8f277 100644
--- a/src/mainboard/amd/union_station/irq_tables.c
+++ b/src/mainboard/amd/union_station/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; 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 */
+/* This file is part of the coreboot project. */
 
 #include <console/console.h>
 #include <device/pci_def.h>
diff --git a/src/mainboard/amd/union_station/mainboard.c b/src/mainboard/amd/union_station/mainboard.c
index 2c7626a..c649ef6 100644
--- a/src/mainboard/amd/union_station/mainboard.c
+++ b/src/mainboard/amd/union_station/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 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 */
+/* This file is part of the coreboot project. */
 
 #include <amdblocks/acpimmio.h>
 #include <console/console.h>
diff --git a/src/mainboard/amd/union_station/mptable.c b/src/mainboard/amd/union_station/mptable.c
index 5f1413d..87747b7 100644
--- a/src/mainboard/amd/union_station/mptable.c
+++ b/src/mainboard/amd/union_station/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; 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 */
+/* This file is part of the coreboot project. */
 
 #include <arch/smp/mpspec.h>
 #include <arch/io.h>
diff --git a/src/mainboard/amd/union_station/platform_cfg.h b/src/mainboard/amd/union_station/platform_cfg.h
index f1898e2..28b8df0 100644
--- a/src/mainboard/amd/union_station/platform_cfg.h
+++ b/src/mainboard/amd/union_station/platform_cfg.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 */
+/* This file is part of the coreboot project. */
 
 
 #ifndef _PLATFORM_CFG_H_