src/: Replace GPL boilerplate with SPDX headers

Used commands:
perl -i -p0e 's|\/\*[\s*]*.*is free software[:;][\s*]*you[\s*]*can[\s*]*redistribute[\s*]*it[\s*]*and\/or[\s*]*modify[\s*]*it[\s*]*under[\s*]*the[\s*]*terms[\s*]*of[\s*]*the[\s*]*GNU[\s*]*General[\s*]*Public[\s*]*License[\s*]*as[\s*]*published[\s*]*by[\s*]*the[\s*]*Free[\s*]*Software[\s*]*Foundation[;,][\s*]*version[\s*]*2[\s*]*of[\s*]*the[\s*]*License.[\s*]*This[\s*]*program[\s*]*is[\s*]*distributed[\s*]*in[\s*]*the[\s*]*hope[\s*]*that[\s*]*it[\s*]*will[\s*]*be[\s*]*useful,[\s*]*but[\s*]*WITHOUT[\s*]*ANY[\s*]*WARRANTY;[\s*]*without[\s*]*even[\s*]*the[\s*]*implied[\s*]*warranty[\s*]*of[\s*]*MERCHANTABILITY[\s*]*or[\s*]*FITNESS[\s*]*FOR[\s*]*A[\s*]*PARTICULAR[\s*]*PURPOSE.[\s*]*See[\s*]*the[\s*]*GNU[\s*]*General[\s*]*Public[\s*]*License[\s*]*for[\s*]*more[\s*]*details.[\s*]*\*\/|/* SPDX-License-Identifier: GPL-2.0-only */|' $(cat filelist)

perl -i -p0e 's|\/\*[\s*]*.*is[\s*]*free[\s*]*software[:;][\s*]*you[\s*]*can[\s*]*redistribute[\s*]*it[\s*]*and/or[\s*]*modify[\s*]*it[\s*]*under[\s*]*the[\s*]*terms[\s*]*of[\s*]*the[\s*]*GNU[\s*]*General[\s*]*Public[\s*]*License[\s*]*as[\s*]*published[\s*]*by[\s*]*the[\s*]*Free[\s*]*Software[\s*]*Foundation[;,][\s*]*either[\s*]*version[\s*]*2[\s*]*of[\s*]*the[\s*]*License,[\s*]*or[\s*]*.at[\s*]*your[\s*]*option.[\s*]*any[\s*]*later[\s*]*version.[\s*]*This[\s*]*program[\s*]*is[\s*]*distributed[\s*]*in[\s*]*the[\s*]*hope[\s*]*that[\s*]*it[\s*]*will[\s*]*be[\s*]*useful,[\s*]*but[\s*]*WITHOUT[\s*]*ANY[\s*]*WARRANTY;[\s*]*without[\s*]*even[\s*]*the[\s*]*implied[\s*]*warranty[\s*]*of[\s*]*MERCHANTABILITY[\s*]*or[\s*]*FITNESS[\s*]*FOR[\s*]*A[\s*]*PARTICULAR[\s*]*PURPOSE.[\s*]*See[\s*]*the[\s*]*GNU[\s*]*General[\s*]*Public[\s*]*License[\s*]*for[\s*]*more[\s*]*details.[\s*]*\*\/|/* SPDX-License-Identifier: GPL-2.0-or-later */|' $(cat filelist)

perl -i -p0e 's|\/\*[\s*]*.*is[\s*#]*free[\s*#]*software[;:,][\s*#]*you[\s*#]*can[\s*#]*redistribute[\s*#]*it[\s*#]*and/or[\s*#]*modify[\s*#]*it[\s*#]*under[\s*#]*the[\s*#]*terms[\s*#]*of[\s*#]*the[\s*#]*GNU[\s*#]*General[\s*#]*Public[\s*#]*License[\s*#]*as[\s*#]*published[\s*#]*by[\s*#]*the[\s*#]*Free[\s*#]*Software[\s*#]*Foundation[;:,][\s*#]*either[\s*#]*version[\s*#]*3[\s*#]*of[\s*#]*the[\s*#]*License[;:,][\s*#]*or[\s*#]*.at[\s*#]*your[\s*#]*option.[\s*#]*any[\s*#]*later[\s*#]*version.[\s*#]*This[\s*#]*program[\s*#]*is[\s*#]*distributed[\s*#]*in[\s*#]*the[\s*#]*hope[\s*#]*that[\s*#]*it[\s*#]*will[\s*#]*be[\s*#]*useful[;:,][\s*#]*but[\s*#]*WITHOUT[\s*#]*ANY[\s*#]*WARRANTY[;:,][\s*#]*without[\s*#]*even[\s*#]*the[\s*#]*implied[\s*#]*warranty[\s*#]*of[\s*#]*MERCHANTABILITY[\s*#]*or[\s*#]*FITNESS[\s*#]*FOR[\s*#]*A[\s*#]*PARTICULAR[\s*#]*PURPOSE.[\s*#]*See[\s*#]*the[\s*#]*GNU[\s*#]*General[\s*#]*Public[\s*#]*License[\s*#]*for[\s*#]*more[\s*#]*details.[\s*]*\*\/|/* SPDX-License-Identifier: GPL-3.0-or-later */|' $(cat filelist)

perl -i -p0e 's|(\#\#*)[\w]*.*is free software[:;][\#\s]*you[\#\s]*can[\#\s]*redistribute[\#\s]*it[\#\s]*and\/or[\#\s]*modify[\#\s]*it[\s\#]*under[\s \#]*the[\s\#]*terms[\s\#]*of[\s\#]*the[\s\#]*GNU[\s\#]*General[\s\#]*Public[\s\#]*License[\s\#]*as[\s\#]*published[\s\#]*by[\s\#]*the[\s\#]*Free[\s\#]*Software[\s\#]*Foundation[;,][\s\#]*version[\s\#]*2[\s\#]*of[\s\#]*the[\s\#]*License.*[\s\#]*This[\s\#]*program[\s\#]*is[\s\#]*distributed[\s\#]*in[\s\#]*the[\s\#]*hope[\s\#]*that[\s\#]*it[\s\#]*will[\#\s]*be[\#\s]*useful,[\#\s]*but[\#\s]*WITHOUT[\#\s]*ANY[\#\s]*WARRANTY;[\#\s]*without[\#\s]*even[\#\s]*the[\#\s]*implied[\#\s]*warranty[\#\s]*of[\#\s]*MERCHANTABILITY[\#\s]*or[\#\s]*FITNESS[\#\s]*FOR[\#\s]*A[\#\s]*PARTICULAR[\#\s]*PURPOSE.[\#\s]*See[\#\s]*the[\#\s]*GNU[\#\s]*General[\#\s]*Public[\#\s]*License[\#\s]*for[\#\s]*more[\#\s]*details.\s(#* *\n)*|\1 SPDX-License-Identifier: GPL-2.0-only\n\n|' $(cat filelist)

perl -i -p0e 's|(\#\#*)[\w*]*.*is free software[:;][\s*]*you[\s*]*can[\s*]*redistribute[\s*]*it[\s*]*and\/or[\s*]*modify[\s*]*it[\s*]*under[\s*]*the[\s*]*terms[\s*]*of[\s*]*the[\s*]*GNU[\s*]*General[\s*]*Public[\s*]*License[\s*]*as[\s*]*published[\s*]*by[\s*]*the[\s*]*Free[\s*]*Software[\s*]*Foundation[;,][\s*]*version[\s*]*2[\s*]*of[\s*]*the[\s*]*License.[\s*]*This[\s*]*program[\s*]*is[\s*]*distributed[\s*]*in[\s*]*the[\s*]*hope[\s*]*that[\s*]*it[\s*]*will[\s*]*be[\s*]*useful,[\s*]*but[\s*]*WITHOUT[\s*]*ANY[\s*]*WARRANTY;[\s*]*without[\s*]*even[\s*]*the[\s*]*implied[\s*]*warranty[\s*]*of[\s*]*MERCHANTABILITY[\s*]*or[\s*]*FITNESS[\s*]*FOR[\s*]*A[\s*]*PARTICULAR[\s*]*PURPOSE.[\s*]*See[\s*]*the[\s*]*GNU[\s*]*General[\s*]*Public[\s*]*License[\s*]*for[\s*]*more[\s*]*details.\s(#* *\n)*|\1 SPDX-License-Identifier: GPL-2.0-only\n\n|' $(cat filelist)

Change-Id: Ia01908544f4b92a2e06ea621eca548e582728280
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41178
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

34 files changed, 50 insertions, 299 deletions

diff --git a/src/mainboard/amd/gardenia/Kconfig b/src/mainboard/amd/gardenia/Kconfig
index 76f59abe4c..9704347353 100644
--- a/src/mainboard/amd/gardenia/Kconfig
+++ b/src/mainboard/amd/gardenia/Kconfig
@@ -2,15 +2,7 @@
 # This file is part of the coreboot project.
 #
 #
-# This program is free software; 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
 
 if BOARD_AMD_GARDENIA
 
diff --git a/src/mainboard/amd/gardenia/Makefile.inc b/src/mainboard/amd/gardenia/Makefile.inc
index 6506e151de..81fdbc5caf 100644
--- a/src/mainboard/amd/gardenia/Makefile.inc
+++ b/src/mainboard/amd/gardenia/Makefile.inc
@@ -2,15 +2,7 @@
 # This file is part of the coreboot project.
 #
 #
-# This program is free software; 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
 
 bootblock-y += bootblock/bootblock.c
 bootblock-y += bootblock/OemCustomize.c
diff --git a/src/mainboard/amd/gardenia/devicetree.cb b/src/mainboard/amd/gardenia/devicetree.cb
index 3a85c04ae0..e1ecf370d3 100644
--- a/src/mainboard/amd/gardenia/devicetree.cb
+++ b/src/mainboard/amd/gardenia/devicetree.cb
@@ -2,15 +2,8 @@
 # This file is part of the coreboot project.
 #
 #
-# This program is free software; 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
+
 chip soc/amd/stoneyridge
 
 	register "spd_addr_lookup" = "
diff --git a/src/mainboard/amd/inagua/Kconfig b/src/mainboard/amd/inagua/Kconfig
index db66a2fd21..811df4b9f2 100644
--- a/src/mainboard/amd/inagua/Kconfig
+++ b/src/mainboard/amd/inagua/Kconfig
@@ -2,15 +2,7 @@
 # This file is part of the coreboot project.
 #
 #
-# This program is free software; 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
 
 if BOARD_AMD_INAGUA
 
diff --git a/src/mainboard/amd/inagua/Makefile.inc b/src/mainboard/amd/inagua/Makefile.inc
index f0a8fe6109..ae80f5d080 100644
--- a/src/mainboard/amd/inagua/Makefile.inc
+++ b/src/mainboard/amd/inagua/Makefile.inc
@@ -2,15 +2,7 @@
 # This file is part of the coreboot project.
 #
 #
-# This program is free software; 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
 
 ifeq ($(CONFIG_AHCI_BIOS),y)
 stripped_ahcibios_id = $(call strip_quotes,$(CONFIG_AHCI_BIOS_ID))
diff --git a/src/mainboard/amd/inagua/cmos.layout b/src/mainboard/amd/inagua/cmos.layout
index 275de95ad2..08ea4436ed 100644
--- a/src/mainboard/amd/inagua/cmos.layout
+++ b/src/mainboard/amd/inagua/cmos.layout
@@ -3,14 +3,8 @@
 #  This file is part of the coreboot project.
 #
 #
-#  This program is free software; 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
+
 #*****************************************************************************
 
 entries
diff --git a/src/mainboard/amd/inagua/devicetree.cb b/src/mainboard/amd/inagua/devicetree.cb
index 3855f99048..8fb6b2f98c 100644
--- a/src/mainboard/amd/inagua/devicetree.cb
+++ b/src/mainboard/amd/inagua/devicetree.cb
@@ -2,15 +2,8 @@
 # This file is part of the coreboot project.
 #
 #
-# This program is free software; 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
+
 chip northbridge/amd/agesa/family14/root_complex
 	device cpu_cluster 0 on
 		chip cpu/amd/agesa/family14
diff --git a/src/mainboard/amd/olivehill/Kconfig b/src/mainboard/amd/olivehill/Kconfig
index 32af0f6ede..243af7abd4 100644
--- a/src/mainboard/amd/olivehill/Kconfig
+++ b/src/mainboard/amd/olivehill/Kconfig
@@ -2,15 +2,7 @@
 # This file is part of the coreboot project.
 #
 #
-# This program is free software; 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
 
 if BOARD_AMD_OLIVEHILL
 
diff --git a/src/mainboard/amd/olivehill/Makefile.inc b/src/mainboard/amd/olivehill/Makefile.inc
index 55bdeb552e..cb73c2795a 100644
--- a/src/mainboard/amd/olivehill/Makefile.inc
+++ b/src/mainboard/amd/olivehill/Makefile.inc
@@ -2,15 +2,7 @@
 # This file is part of the coreboot project.
 #
 #
-# This program is free software; 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
 
 bootblock-y += bootblock.c
 
diff --git a/src/mainboard/amd/olivehill/cmos.layout b/src/mainboard/amd/olivehill/cmos.layout
index 4a18471301..6e3f6dbe0d 100644
--- a/src/mainboard/amd/olivehill/cmos.layout
+++ b/src/mainboard/amd/olivehill/cmos.layout
@@ -3,14 +3,8 @@
 #  This file is part of the coreboot project.
 #
 #
-#  This program is free software; 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
+
 #*****************************************************************************
 
 entries
diff --git a/src/mainboard/amd/olivehill/devicetree.cb b/src/mainboard/amd/olivehill/devicetree.cb
index 924cb326dc..b620f2bb39 100644
--- a/src/mainboard/amd/olivehill/devicetree.cb
+++ b/src/mainboard/amd/olivehill/devicetree.cb
@@ -2,15 +2,8 @@
 # This file is part of the coreboot project.
 #
 #
-# This program is free software; 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
+
 chip northbridge/amd/agesa/family16kb/root_complex
 	device cpu_cluster 0 on
 		chip cpu/amd/agesa/family16kb
diff --git a/src/mainboard/amd/padmelon/Kconfig b/src/mainboard/amd/padmelon/Kconfig
index 300a3006c0..81bb380542 100644
--- a/src/mainboard/amd/padmelon/Kconfig
+++ b/src/mainboard/amd/padmelon/Kconfig
@@ -2,15 +2,7 @@
 # This file is part of the coreboot project.
 #
 #
-# This program is free software; 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
 
 if BOARD_AMD_PADMELON
 
diff --git a/src/mainboard/amd/padmelon/Makefile.inc b/src/mainboard/amd/padmelon/Makefile.inc
index 056157096a..4d378c39ab 100644
--- a/src/mainboard/amd/padmelon/Makefile.inc
+++ b/src/mainboard/amd/padmelon/Makefile.inc
@@ -2,15 +2,7 @@
 # This file is part of the coreboot project.
 #
 #
-# This program is free software; 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
 
 bootblock-y += bootblock/bootblock.c
 bootblock-y += bootblock/OemCustomize.c
diff --git a/src/mainboard/amd/padmelon/devicetree.cb b/src/mainboard/amd/padmelon/devicetree.cb
index 4306593602..01a7a473a6 100644
--- a/src/mainboard/amd/padmelon/devicetree.cb
+++ b/src/mainboard/amd/padmelon/devicetree.cb
@@ -2,15 +2,8 @@
 # This file is part of the coreboot project.
 #
 #
-# This program is free software; 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
+
 chip soc/amd/stoneyridge
 
 	register "spd_addr_lookup" = "
diff --git a/src/mainboard/amd/parmer/Kconfig b/src/mainboard/amd/parmer/Kconfig
index 4d05e761cf..f8f1086fe5 100644
--- a/src/mainboard/amd/parmer/Kconfig
+++ b/src/mainboard/amd/parmer/Kconfig
@@ -2,15 +2,7 @@
 # This file is part of the coreboot project.
 #
 #
-# This program is free software; 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
 
 if BOARD_AMD_PARMER
 
diff --git a/src/mainboard/amd/parmer/Makefile.inc b/src/mainboard/amd/parmer/Makefile.inc
index 55bdeb552e..cb73c2795a 100644
--- a/src/mainboard/amd/parmer/Makefile.inc
+++ b/src/mainboard/amd/parmer/Makefile.inc
@@ -2,15 +2,7 @@
 # This file is part of the coreboot project.
 #
 #
-# This program is free software; 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
 
 bootblock-y += bootblock.c
 
diff --git a/src/mainboard/amd/parmer/cmos.layout b/src/mainboard/amd/parmer/cmos.layout
index 4a18471301..6e3f6dbe0d 100644
--- a/src/mainboard/amd/parmer/cmos.layout
+++ b/src/mainboard/amd/parmer/cmos.layout
@@ -3,14 +3,8 @@
 #  This file is part of the coreboot project.
 #
 #
-#  This program is free software; 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
+
 #*****************************************************************************
 
 entries
diff --git a/src/mainboard/amd/parmer/devicetree.cb b/src/mainboard/amd/parmer/devicetree.cb
index a818ac3e09..0beb0b5025 100644
--- a/src/mainboard/amd/parmer/devicetree.cb
+++ b/src/mainboard/amd/parmer/devicetree.cb
@@ -2,15 +2,8 @@
 # This file is part of the coreboot project.
 #
 #
-# This program is free software; 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
+
 chip northbridge/amd/agesa/family15tn/root_complex
 
 	device cpu_cluster 0 on
diff --git a/src/mainboard/amd/persimmon/Kconfig b/src/mainboard/amd/persimmon/Kconfig
index f0ccba8395..482cce7f09 100644
--- a/src/mainboard/amd/persimmon/Kconfig
+++ b/src/mainboard/amd/persimmon/Kconfig
@@ -2,15 +2,7 @@
 # This file is part of the coreboot project.
 #
 #
-# This program is free software; 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
 
 if BOARD_AMD_PERSIMMON
 
diff --git a/src/mainboard/amd/persimmon/Makefile.inc b/src/mainboard/amd/persimmon/Makefile.inc
index f0a8fe6109..ae80f5d080 100644
--- a/src/mainboard/amd/persimmon/Makefile.inc
+++ b/src/mainboard/amd/persimmon/Makefile.inc
@@ -2,15 +2,7 @@
 # This file is part of the coreboot project.
 #
 #
-# This program is free software; 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
 
 ifeq ($(CONFIG_AHCI_BIOS),y)
 stripped_ahcibios_id = $(call strip_quotes,$(CONFIG_AHCI_BIOS_ID))
diff --git a/src/mainboard/amd/persimmon/cmos.layout b/src/mainboard/amd/persimmon/cmos.layout
index 275de95ad2..08ea4436ed 100644
--- a/src/mainboard/amd/persimmon/cmos.layout
+++ b/src/mainboard/amd/persimmon/cmos.layout
@@ -3,14 +3,8 @@
 #  This file is part of the coreboot project.
 #
 #
-#  This program is free software; 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
+
 #*****************************************************************************
 
 entries
diff --git a/src/mainboard/amd/persimmon/devicetree.cb b/src/mainboard/amd/persimmon/devicetree.cb
index 7d97d596e7..59939e853b 100644
--- a/src/mainboard/amd/persimmon/devicetree.cb
+++ b/src/mainboard/amd/persimmon/devicetree.cb
@@ -2,15 +2,8 @@
 # This file is part of the coreboot project.
 #
 #
-# This program is free software; 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
+
 chip northbridge/amd/agesa/family14/root_complex
 	device cpu_cluster 0 on
 		chip cpu/amd/agesa/family14
diff --git a/src/mainboard/amd/south_station/Kconfig b/src/mainboard/amd/south_station/Kconfig
index 070d7b4cdd..445d470d96 100644
--- a/src/mainboard/amd/south_station/Kconfig
+++ b/src/mainboard/amd/south_station/Kconfig
@@ -2,15 +2,7 @@
 # This file is part of the coreboot project.
 #
 #
-# This program is free software; 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
 
 if BOARD_AMD_SOUTHSTATION
 
diff --git a/src/mainboard/amd/south_station/Makefile.inc b/src/mainboard/amd/south_station/Makefile.inc
index 55bdeb552e..cb73c2795a 100644
--- a/src/mainboard/amd/south_station/Makefile.inc
+++ b/src/mainboard/amd/south_station/Makefile.inc
@@ -2,15 +2,7 @@
 # This file is part of the coreboot project.
 #
 #
-# This program is free software; 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
 
 bootblock-y += bootblock.c
 
diff --git a/src/mainboard/amd/south_station/cmos.layout b/src/mainboard/amd/south_station/cmos.layout
index 275de95ad2..08ea4436ed 100644
--- a/src/mainboard/amd/south_station/cmos.layout
+++ b/src/mainboard/amd/south_station/cmos.layout
@@ -3,14 +3,8 @@
 #  This file is part of the coreboot project.
 #
 #
-#  This program is free software; 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
+
 #*****************************************************************************
 
 entries
diff --git a/src/mainboard/amd/south_station/devicetree.cb b/src/mainboard/amd/south_station/devicetree.cb
index 5b23f78d71..c122e354f4 100644
--- a/src/mainboard/amd/south_station/devicetree.cb
+++ b/src/mainboard/amd/south_station/devicetree.cb
@@ -2,15 +2,8 @@
 # This file is part of the coreboot project.
 #
 #
-# This program is free software; 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
+
 chip northbridge/amd/agesa/family14/root_complex
         device cpu_cluster 0 on
                 chip cpu/amd/agesa/family14
diff --git a/src/mainboard/amd/thatcher/Kconfig b/src/mainboard/amd/thatcher/Kconfig
index b4b16431cb..e7d07685af 100644
--- a/src/mainboard/amd/thatcher/Kconfig
+++ b/src/mainboard/amd/thatcher/Kconfig
@@ -2,15 +2,7 @@
 # This file is part of the coreboot project.
 #
 #
-# This program is free software; 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
 
 if BOARD_AMD_THATCHER
 
diff --git a/src/mainboard/amd/thatcher/Makefile.inc b/src/mainboard/amd/thatcher/Makefile.inc
index 55bdeb552e..cb73c2795a 100644
--- a/src/mainboard/amd/thatcher/Makefile.inc
+++ b/src/mainboard/amd/thatcher/Makefile.inc
@@ -2,15 +2,7 @@
 # This file is part of the coreboot project.
 #
 #
-# This program is free software; 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
 
 bootblock-y += bootblock.c
 
diff --git a/src/mainboard/amd/thatcher/cmos.layout b/src/mainboard/amd/thatcher/cmos.layout
index 4a18471301..6e3f6dbe0d 100644
--- a/src/mainboard/amd/thatcher/cmos.layout
+++ b/src/mainboard/amd/thatcher/cmos.layout
@@ -3,14 +3,8 @@
 #  This file is part of the coreboot project.
 #
 #
-#  This program is free software; 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
+
 #*****************************************************************************
 
 entries
diff --git a/src/mainboard/amd/thatcher/devicetree.cb b/src/mainboard/amd/thatcher/devicetree.cb
index 0f5035ed1f..f0618907eb 100644
--- a/src/mainboard/amd/thatcher/devicetree.cb
+++ b/src/mainboard/amd/thatcher/devicetree.cb
@@ -2,15 +2,8 @@
 # This file is part of the coreboot project.
 #
 #
-# This program is free software; 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
+
 chip northbridge/amd/agesa/family15tn/root_complex
 
 	device cpu_cluster 0 on
diff --git a/src/mainboard/amd/union_station/Kconfig b/src/mainboard/amd/union_station/Kconfig
index 626d3af269..da5e6f3b95 100644
--- a/src/mainboard/amd/union_station/Kconfig
+++ b/src/mainboard/amd/union_station/Kconfig
@@ -2,15 +2,7 @@
 # This file is part of the coreboot project.
 #
 #
-# This program is free software; 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
 
 if BOARD_AMD_UNIONSTATION
 
diff --git a/src/mainboard/amd/union_station/Makefile.inc b/src/mainboard/amd/union_station/Makefile.inc
index 55bdeb552e..cb73c2795a 100644
--- a/src/mainboard/amd/union_station/Makefile.inc
+++ b/src/mainboard/amd/union_station/Makefile.inc
@@ -2,15 +2,7 @@
 # This file is part of the coreboot project.
 #
 #
-# This program is free software; 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
 
 bootblock-y += bootblock.c
 
diff --git a/src/mainboard/amd/union_station/cmos.layout b/src/mainboard/amd/union_station/cmos.layout
index 275de95ad2..08ea4436ed 100644
--- a/src/mainboard/amd/union_station/cmos.layout
+++ b/src/mainboard/amd/union_station/cmos.layout
@@ -3,14 +3,8 @@
 #  This file is part of the coreboot project.
 #
 #
-#  This program is free software; 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
+
 #*****************************************************************************
 
 entries
diff --git a/src/mainboard/amd/union_station/devicetree.cb b/src/mainboard/amd/union_station/devicetree.cb
index 9b8b2ec05f..352e2165b5 100644
--- a/src/mainboard/amd/union_station/devicetree.cb
+++ b/src/mainboard/amd/union_station/devicetree.cb
@@ -2,15 +2,8 @@
 # This file is part of the coreboot project.
 #
 #
-# This program is free software; 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
+
 chip northbridge/amd/agesa/family14/root_complex
         device cpu_cluster 0 on
                 chip cpu/amd/agesa/family14