diff --git a/src/southbridge/amd/agesa/Kconfig b/src/southbridge/amd/agesa/Kconfig
index 432d90b..03673bc 100644
--- a/src/southbridge/amd/agesa/Kconfig
+++ b/src/southbridge/amd/agesa/Kconfig
@@ -1,15 +1,4 @@
-#
 # This file is part of the coreboot project.
-#
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; 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
 
 source "src/southbridge/amd/agesa/hudson/Kconfig"
diff --git a/src/southbridge/amd/agesa/hudson/Kconfig b/src/southbridge/amd/agesa/hudson/Kconfig
index 5e56db4..5f672bb 100644
--- a/src/southbridge/amd/agesa/hudson/Kconfig
+++ b/src/southbridge/amd/agesa/hudson/Kconfig
@@ -1,16 +1,5 @@
-##
-## This file is part of the coreboot project.
-##
-##
-## This program is free software; 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.
-##
+# This file is part of the coreboot project.
+# SPDX-License-Identifier: GPL-2.0-only
 
 config SOUTHBRIDGE_AMD_AGESA_HUDSON
 	bool
diff --git a/src/southbridge/amd/cimx/Kconfig b/src/southbridge/amd/cimx/Kconfig
index 6fdd86f..0a0d402 100644
--- a/src/southbridge/amd/cimx/Kconfig
+++ b/src/southbridge/amd/cimx/Kconfig
@@ -1,16 +1,5 @@
-#
 # This file is part of the coreboot project.
-#
-#
-# This program is free software; 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
 
 config AMD_SB_CIMX
 	bool
diff --git a/src/southbridge/amd/cimx/sb800/Kconfig b/src/southbridge/amd/cimx/sb800/Kconfig
index e50f739..e9d0709 100644
--- a/src/southbridge/amd/cimx/sb800/Kconfig
+++ b/src/southbridge/amd/cimx/sb800/Kconfig
@@ -1,16 +1,5 @@
-##
-## This file is part of the coreboot project.
-##
-##
-## This program is free software; 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.
-##
+# This file is part of the coreboot project.
+# SPDX-License-Identifier: GPL-2.0-only
 
 config SOUTHBRIDGE_AMD_CIMX_SB800
 	bool
diff --git a/src/southbridge/amd/pi/Kconfig b/src/southbridge/amd/pi/Kconfig
index 0b48d19..1ede95c 100644
--- a/src/southbridge/amd/pi/Kconfig
+++ b/src/southbridge/amd/pi/Kconfig
@@ -1,15 +1,4 @@
-#
 # This file is part of the coreboot project.
-#
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; 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
 
 source "src/southbridge/amd/pi/hudson/Kconfig"
diff --git a/src/southbridge/amd/pi/hudson/Kconfig b/src/southbridge/amd/pi/hudson/Kconfig
index 84031c1..cfc9148 100644
--- a/src/southbridge/amd/pi/hudson/Kconfig
+++ b/src/southbridge/amd/pi/hudson/Kconfig
@@ -1,16 +1,5 @@
-##
-## This file is part of the coreboot project.
-##
-##
-## This program is free software; 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.
-##
+# This file is part of the coreboot project.
+# SPDX-License-Identifier: GPL-2.0-only
 
 config SOUTHBRIDGE_AMD_PI_BOLTON
 	bool
diff --git a/src/southbridge/intel/common/firmware/Kconfig b/src/southbridge/intel/common/firmware/Kconfig
index d72ff76..2af798d 100644
--- a/src/southbridge/intel/common/firmware/Kconfig
+++ b/src/southbridge/intel/common/firmware/Kconfig
@@ -1,16 +1,5 @@
-##
-## This file is part of the coreboot project.
-##
-##
-## This program is free software; 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.
-##
+# This file is part of the coreboot project.
+# SPDX-License-Identifier: GPL-2.0-only
 
 config HAVE_INTEL_FIRMWARE
 	bool
diff --git a/src/southbridge/intel/i82801dx/Kconfig b/src/southbridge/intel/i82801dx/Kconfig
index 1ed4504..007d543 100644
--- a/src/southbridge/intel/i82801dx/Kconfig
+++ b/src/southbridge/intel/i82801dx/Kconfig
@@ -1,17 +1,5 @@
-##
-## This file is part of the coreboot project.
-##
-##
-## This program is free software; 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.
-##
+# This file is part of the coreboot project.
+# SPDX-License-Identifier: GPL-2.0-only
 
 config SOUTHBRIDGE_INTEL_I82801DX
 	bool
diff --git a/src/southbridge/intel/i82801gx/Kconfig b/src/southbridge/intel/i82801gx/Kconfig
index e57a3ea..ecdecc1 100644
--- a/src/southbridge/intel/i82801gx/Kconfig
+++ b/src/southbridge/intel/i82801gx/Kconfig
@@ -1,16 +1,5 @@
-##
-## This file is part of the coreboot project.
-##
-##
-## This program is free software; 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.
-##
+# This file is part of the coreboot project.
+# SPDX-License-Identifier: GPL-2.0-only
 
 config SOUTHBRIDGE_INTEL_I82801GX
 	bool
diff --git a/src/southbridge/intel/i82801ix/Kconfig b/src/southbridge/intel/i82801ix/Kconfig
index 7f69845..8bb7ce3 100644
--- a/src/southbridge/intel/i82801ix/Kconfig
+++ b/src/southbridge/intel/i82801ix/Kconfig
@@ -1,16 +1,5 @@
-##
-## This file is part of the coreboot project.
-##
-##
-## This program is free software; 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.
-##
+# This file is part of the coreboot project.
+# SPDX-License-Identifier: GPL-2.0-only
 
 config SOUTHBRIDGE_INTEL_I82801IX
 	bool
diff --git a/src/southbridge/intel/i82801jx/Kconfig b/src/southbridge/intel/i82801jx/Kconfig
index 1d175ab..490af23 100644
--- a/src/southbridge/intel/i82801jx/Kconfig
+++ b/src/southbridge/intel/i82801jx/Kconfig
@@ -1,16 +1,5 @@
-##
-## This file is part of the coreboot project.
-##
-##
-## This program is free software; 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.
-##
+# This file is part of the coreboot project.
+# SPDX-License-Identifier: GPL-2.0-only
 
 config SOUTHBRIDGE_INTEL_I82801JX
 	bool
diff --git a/src/southbridge/intel/ibexpeak/Kconfig b/src/southbridge/intel/ibexpeak/Kconfig
index 856dc61..93f4896 100644
--- a/src/southbridge/intel/ibexpeak/Kconfig
+++ b/src/southbridge/intel/ibexpeak/Kconfig
@@ -1,16 +1,5 @@
-##
-## This file is part of the coreboot project.
-##
-##
-## This program is free software; 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.
-##
+# This file is part of the coreboot project.
+# SPDX-License-Identifier: GPL-2.0-only
 
 config SOUTHBRIDGE_INTEL_IBEXPEAK
 	bool
diff --git a/src/southbridge/ricoh/rl5c476/Kconfig b/src/southbridge/ricoh/rl5c476/Kconfig
index 77d8866..8453cfa 100644
--- a/src/southbridge/ricoh/rl5c476/Kconfig
+++ b/src/southbridge/ricoh/rl5c476/Kconfig
@@ -1,16 +1,5 @@
-##
-## This file is part of the coreboot project.
-##
-##
-## This program is free software; 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.
-##
+# This file is part of the coreboot project.
+# SPDX-License-Identifier: GPL-2.0-only
 
 config SOUTHBRIDGE_RICOH_RL5C476
 	bool
diff --git a/src/southbridge/ti/pci7420/Kconfig b/src/southbridge/ti/pci7420/Kconfig
index 3ff9f21..15c3ae0 100644
--- a/src/southbridge/ti/pci7420/Kconfig
+++ b/src/southbridge/ti/pci7420/Kconfig
@@ -1,16 +1,5 @@
-##
-## This file is part of the coreboot project.
-##
-##
-## This program is free software; 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.
-##
+# This file is part of the coreboot project.
+# SPDX-License-Identifier: GPL-2.0-only
 
 config SOUTHBRIDGE_TI_PCI7420
 	bool
diff --git a/src/southbridge/ti/pcixx12/Kconfig b/src/southbridge/ti/pcixx12/Kconfig
index 55736fb..ff96e4e 100644
--- a/src/southbridge/ti/pcixx12/Kconfig
+++ b/src/southbridge/ti/pcixx12/Kconfig
@@ -1,16 +1,5 @@
-##
-## This file is part of the coreboot project.
-##
-##
-## This program is free software; 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.
-##
+# This file is part of the coreboot project.
+# SPDX-License-Identifier: GPL-2.0-only
 
 config SOUTHBRIDGE_TI_PCIXX12
 	bool