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authorMartin Roth <gaumless@gmail.com>2023-08-04 12:16:41 -0600
committerMartin L Roth <gaumless@gmail.com>2023-08-06 19:28:50 +0000
commit8ebd8cc34868127f5b13c668321670d1677225b5 (patch)
treebf54124de12744c4170c5fbf20452cef3ea1b044
parent8324fe92111844d1afe2a87d6d38302520793909 (diff)
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mainboard: Add SPDX license headers to Makefiles
To help identify the licenses of the various files contained in the coreboot source, we've added SPDX headers to the top of all of the .c and .h files. This extends that practice to Makefiles. Any file in the coreboot project without a specific license is bound to the license of the overall coreboot project, GPL Version 2. This patch adds the GPL V2 license identifier to the top of all makefiles in the mainboard directory that don't already have an SPDX license line at the top. Signed-off-by: Martin Roth <gaumless@gmail.com> Change-Id: Ic451e68b1ad9ccdf34484dd98bd7fca7e177ef22 Reviewed-on: https://review.coreboot.org/c/coreboot/+/68982 Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de> Reviewed-by: Yidi Lin <yidilin@google.com> Reviewed-by: Yu-Ping Wu <yupingso@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com> Reviewed-by: Tim Crawford <tcrawford@system76.com> Reviewed-by: Elyes Haouas <ehaouas@noos.fr>
-rw-r--r--src/mainboard/apple/macbook21/Makefile.inc2
-rw-r--r--src/mainboard/apple/macbookair4_2/Makefile.inc2
-rw-r--r--src/mainboard/asrock/b85m_pro4/Makefile.inc2
-rw-r--r--src/mainboard/asrock/g41c-gs/Makefile.inc2
-rw-r--r--src/mainboard/asus/p2b/Makefile.inc2
-rw-r--r--src/mainboard/asus/p5gc-mx/Makefile.inc2
-rw-r--r--src/mainboard/asus/p5qpl-am/Makefile.inc2
-rw-r--r--src/mainboard/biostar/th61-itx/Makefile.inc2
-rw-r--r--src/mainboard/bytedance/bd_egs/Makefile.inc2
-rw-r--r--src/mainboard/clevo/cml-u/Makefile.inc2
-rw-r--r--src/mainboard/clevo/cml-u/variants/l140cu/Makefile.inc2
-rw-r--r--src/mainboard/clevo/tgl-u/Makefile.inc2
-rw-r--r--src/mainboard/clevo/tgl-u/variants/l140mu/Makefile.inc2
-rw-r--r--src/mainboard/compulab/intense_pc/Makefile.inc2
-rw-r--r--src/mainboard/emulation/qemu-i440fx/Makefile.inc2
-rw-r--r--src/mainboard/emulation/qemu-q35/Makefile.inc2
-rw-r--r--src/mainboard/foxconn/d41s/Makefile.inc2
-rw-r--r--src/mainboard/foxconn/g41s-k/Makefile.inc2
-rw-r--r--src/mainboard/gigabyte/ga-945gcm-s2l/Makefile.inc2
-rw-r--r--src/mainboard/gigabyte/ga-g41m-es2l/Makefile.inc2
-rw-r--r--src/mainboard/gigabyte/ga-h61m-series/Makefile.inc2
-rw-r--r--src/mainboard/google/asurada/Makefile.inc2
-rw-r--r--src/mainboard/google/asurada/sdram_params/Makefile.inc2
-rw-r--r--src/mainboard/google/brya/Makefile.inc2
-rw-r--r--src/mainboard/google/brya/variants/aurash/Makefile.inc2
-rw-r--r--src/mainboard/google/brya/variants/baseboard/brask/Makefile.inc2
-rw-r--r--src/mainboard/google/brya/variants/baseboard/brya/Makefile.inc2
-rw-r--r--src/mainboard/google/brya/variants/baseboard/hades/Makefile.inc2
-rw-r--r--src/mainboard/google/brya/variants/baseboard/nissa/Makefile.inc2
-rw-r--r--src/mainboard/google/brya/variants/brya0/Makefile.inc2
-rw-r--r--src/mainboard/google/brya/variants/crota/Makefile.inc2
-rw-r--r--src/mainboard/google/brya/variants/gaelin/Makefile.inc2
-rw-r--r--src/mainboard/google/brya/variants/gothrax/Makefile.inc2
-rw-r--r--src/mainboard/google/brya/variants/hades/Makefile.inc2
-rw-r--r--src/mainboard/google/brya/variants/moli/Makefile.inc2
-rw-r--r--src/mainboard/google/brya/variants/skolas/Makefile.inc2
-rw-r--r--src/mainboard/google/brya/variants/skolas4es/Makefile.inc2
-rw-r--r--src/mainboard/google/brya/variants/taeko/Makefile.inc2
-rw-r--r--src/mainboard/google/brya/variants/taeko4es/Makefile.inc2
-rw-r--r--src/mainboard/google/brya/variants/taniks/Makefile.inc2
-rw-r--r--src/mainboard/google/cherry/Makefile.inc2
-rw-r--r--src/mainboard/google/corsola/Makefile.inc2
-rw-r--r--src/mainboard/google/dedede/Makefile.inc2
-rw-r--r--src/mainboard/google/dedede/variants/baseboard/Makefile.inc2
-rw-r--r--src/mainboard/google/fizz/variants/baseboard/Makefile.inc2
-rw-r--r--src/mainboard/google/fizz/variants/endeavour/Makefile.inc2
-rw-r--r--src/mainboard/google/fizz/variants/karma/Makefile.inc2
-rw-r--r--src/mainboard/google/geralt/Makefile.inc2
-rw-r--r--src/mainboard/google/guybrush/variants/baseboard/Makefile.inc2
-rw-r--r--src/mainboard/google/kukui/Makefile.inc2
-rw-r--r--src/mainboard/google/kukui/sdram_params/Makefile.inc2
-rw-r--r--src/mainboard/google/mistral/Makefile.inc1
-rw-r--r--src/mainboard/google/myst/variants/baseboard/Makefile.inc2
-rw-r--r--src/mainboard/google/octopus/Makefile.inc2
-rw-r--r--src/mainboard/google/octopus/variants/ampton/Makefile.inc2
-rw-r--r--src/mainboard/google/octopus/variants/baseboard/Makefile.inc2
-rw-r--r--src/mainboard/google/octopus/variants/bloog/Makefile.inc2
-rw-r--r--src/mainboard/google/octopus/variants/bobba/Makefile.inc2
-rw-r--r--src/mainboard/google/octopus/variants/casta/Makefile.inc2
-rw-r--r--src/mainboard/google/octopus/variants/dood/Makefile.inc2
-rw-r--r--src/mainboard/google/octopus/variants/fleex/Makefile.inc2
-rw-r--r--src/mainboard/google/octopus/variants/foob/Makefile.inc2
-rw-r--r--src/mainboard/google/octopus/variants/garg/Makefile.inc2
-rw-r--r--src/mainboard/google/octopus/variants/lick/Makefile.inc2
-rw-r--r--src/mainboard/google/octopus/variants/meep/Makefile.inc2
-rw-r--r--src/mainboard/google/octopus/variants/phaser/Makefile.inc2
-rw-r--r--src/mainboard/google/octopus/variants/yorp/Makefile.inc2
-rw-r--r--src/mainboard/google/poppy/spd/Makefile.inc1
-rw-r--r--src/mainboard/google/poppy/variants/atlas/Makefile.inc1
-rw-r--r--src/mainboard/google/poppy/variants/baseboard/Makefile.inc2
-rw-r--r--src/mainboard/google/poppy/variants/nami/Makefile.inc1
-rw-r--r--src/mainboard/google/poppy/variants/nautilus/Makefile.inc1
-rw-r--r--src/mainboard/google/poppy/variants/nocturne/Makefile.inc1
-rw-r--r--src/mainboard/google/poppy/variants/poppy/Makefile.inc1
-rw-r--r--src/mainboard/google/poppy/variants/rammus/Makefile.inc2
-rw-r--r--src/mainboard/google/poppy/variants/soraka/Makefile.inc1
-rw-r--r--src/mainboard/google/reef/Makefile.inc2
-rw-r--r--src/mainboard/google/reef/variants/baseboard/Makefile.inc2
-rw-r--r--src/mainboard/google/reef/variants/coral/Makefile.inc2
-rw-r--r--src/mainboard/google/reef/variants/pyro/Makefile.inc2
-rw-r--r--src/mainboard/google/reef/variants/snappy/Makefile.inc2
-rw-r--r--src/mainboard/google/rex/Makefile.inc2
-rw-r--r--src/mainboard/google/rex/variants/baseboard/ovis/Makefile.inc2
-rw-r--r--src/mainboard/google/rex/variants/baseboard/rex/Makefile.inc2
-rw-r--r--src/mainboard/google/rex/variants/karis/Makefile.inc2
-rw-r--r--src/mainboard/google/rex/variants/ovis/Makefile.inc2
-rw-r--r--src/mainboard/google/rex/variants/rex0/Makefile.inc2
-rw-r--r--src/mainboard/google/rex/variants/screebo/Makefile.inc2
-rw-r--r--src/mainboard/google/skyrim/variants/baseboard/Makefile.inc2
-rw-r--r--src/mainboard/hp/compaq_8200_elite_sff/Makefile.inc2
-rw-r--r--src/mainboard/hp/compaq_elite_8300_usdt/Makefile.inc2
-rw-r--r--src/mainboard/hp/folio_9480m/Makefile.inc2
-rw-r--r--src/mainboard/hp/z220_series/Makefile.inc2
-rw-r--r--src/mainboard/ibase/mb899/Makefile.inc2
-rw-r--r--src/mainboard/ibm/sbp1/Makefile.inc2
-rw-r--r--src/mainboard/intel/apollolake_rvp/Makefile.inc2
-rw-r--r--src/mainboard/intel/archercity_crb/Makefile.inc2
-rw-r--r--src/mainboard/intel/cedarisland_crb/Makefile.inc2
-rw-r--r--src/mainboard/intel/coffeelake_rvp/variants/baseboard/Makefile.inc2
-rw-r--r--src/mainboard/intel/d510mo/Makefile.inc2
-rw-r--r--src/mainboard/intel/d945gclf/Makefile.inc2
-rw-r--r--src/mainboard/intel/dcp847ske/Makefile.inc2
-rw-r--r--src/mainboard/intel/dg41wv/Makefile.inc2
-rw-r--r--src/mainboard/intel/dq67sw/Makefile.inc2
-rw-r--r--src/mainboard/intel/glkrvp/Makefile.inc2
-rw-r--r--src/mainboard/intel/glkrvp/variants/baseboard/Makefile.inc2
-rw-r--r--src/mainboard/intel/leafhill/Makefile.inc2
-rw-r--r--src/mainboard/intel/minnow3/Makefile.inc2
-rw-r--r--src/mainboard/inventec/transformers/Makefile.inc2
-rw-r--r--src/mainboard/kontron/986lcd-m/Makefile.inc2
-rw-r--r--src/mainboard/kontron/ktqm77/Makefile.inc2
-rw-r--r--src/mainboard/kontron/mal10/Makefile.inc2
-rw-r--r--src/mainboard/kontron/mal10/carriers/t10-tni/Makefile.inc2
-rw-r--r--src/mainboard/kontron/mal10/variants/mal10/Makefile.inc2
-rw-r--r--src/mainboard/lenovo/haswell/Makefile.inc2
-rw-r--r--src/mainboard/lenovo/haswell/variants/t440p/Makefile.inc2
-rw-r--r--src/mainboard/lenovo/s230u/Makefile.inc2
-rw-r--r--src/mainboard/lenovo/t430/Makefile.inc2
-rw-r--r--src/mainboard/lenovo/thinkcentre_a58/Makefile.inc2
-rw-r--r--src/mainboard/msi/h81m-p33/Makefile.inc2
-rw-r--r--src/mainboard/msi/ms7707/Makefile.inc2
-rw-r--r--src/mainboard/siemens/mc_apl1/Makefile.inc2
-rw-r--r--src/mainboard/siemens/mc_apl1/variants/baseboard/Makefile.inc1
-rw-r--r--src/mainboard/siemens/mc_apl1/variants/mc_apl1/Makefile.inc2
-rw-r--r--src/mainboard/siemens/mc_apl1/variants/mc_apl2/Makefile.inc2
-rw-r--r--src/mainboard/siemens/mc_apl1/variants/mc_apl3/Makefile.inc2
-rw-r--r--src/mainboard/siemens/mc_apl1/variants/mc_apl4/Makefile.inc2
-rw-r--r--src/mainboard/siemens/mc_apl1/variants/mc_apl5/Makefile.inc2
-rw-r--r--src/mainboard/siemens/mc_apl1/variants/mc_apl6/Makefile.inc2
-rw-r--r--src/mainboard/siemens/mc_apl1/variants/mc_apl7/Makefile.inc2
-rw-r--r--src/mainboard/supermicro/x9scl/Makefile.inc2
-rw-r--r--src/mainboard/system76/addw1/Makefile.inc2
-rw-r--r--src/mainboard/system76/adl/Makefile.inc2
-rw-r--r--src/mainboard/system76/bonw14/Makefile.inc2
-rw-r--r--src/mainboard/system76/cml-u/Makefile.inc2
-rw-r--r--src/mainboard/system76/gaze15/Makefile.inc2
-rw-r--r--src/mainboard/system76/kbl-u/Makefile.inc2
-rw-r--r--src/mainboard/system76/oryp5/Makefile.inc2
-rw-r--r--src/mainboard/system76/oryp6/Makefile.inc2
-rw-r--r--src/mainboard/system76/tgl-u/Makefile.inc2
-rw-r--r--src/mainboard/system76/whl-u/Makefile.inc2
-rw-r--r--src/mainboard/up/squared/Makefile.inc2
142 files changed, 275 insertions, 0 deletions
diff --git a/src/mainboard/apple/macbook21/Makefile.inc b/src/mainboard/apple/macbook21/Makefile.inc
index 58198971cdee..115d7e9cbd93 100644
--- a/src/mainboard/apple/macbook21/Makefile.inc
+++ b/src/mainboard/apple/macbook21/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
romstage-y += gpio.c
bootblock-y += early_init.c
romstage-y += early_init.c
diff --git a/src/mainboard/apple/macbookair4_2/Makefile.inc b/src/mainboard/apple/macbookair4_2/Makefile.inc
index 665a95f1955d..36e42581cf58 100644
--- a/src/mainboard/apple/macbookair4_2/Makefile.inc
+++ b/src/mainboard/apple/macbookair4_2/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
romstage-y += gpio.c
ramstage-y += gnvs.c
diff --git a/src/mainboard/asrock/b85m_pro4/Makefile.inc b/src/mainboard/asrock/b85m_pro4/Makefile.inc
index d9a8d18d0de0..54643607ce06 100644
--- a/src/mainboard/asrock/b85m_pro4/Makefile.inc
+++ b/src/mainboard/asrock/b85m_pro4/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
romstage-y += gpio.c
ramstage-$(CONFIG_MAINBOARD_USE_LIBGFXINIT) += gma-mainboard.ads
diff --git a/src/mainboard/asrock/g41c-gs/Makefile.inc b/src/mainboard/asrock/g41c-gs/Makefile.inc
index ab352cb73db1..bb906a65a084 100644
--- a/src/mainboard/asrock/g41c-gs/Makefile.inc
+++ b/src/mainboard/asrock/g41c-gs/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
ramstage-y += cstates.c
romstage-y += variants/$(VARIANT_DIR)/gpio.c
diff --git a/src/mainboard/asus/p2b/Makefile.inc b/src/mainboard/asus/p2b/Makefile.inc
index eb48944b6ef2..6e1fb3fef1a2 100644
--- a/src/mainboard/asus/p2b/Makefile.inc
+++ b/src/mainboard/asus/p2b/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += bootblock.c
romstage-$(CONFIG_BOARD_ASUS_P3B_F) += variants/$(VARIANT_DIR)/romstage.c
diff --git a/src/mainboard/asus/p5gc-mx/Makefile.inc b/src/mainboard/asus/p5gc-mx/Makefile.inc
index a34f3f31c78e..95250e28a6b3 100644
--- a/src/mainboard/asus/p5gc-mx/Makefile.inc
+++ b/src/mainboard/asus/p5gc-mx/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
ramstage-y += cstates.c
romstage-y += gpio.c
bootblock-y += early_init.c
diff --git a/src/mainboard/asus/p5qpl-am/Makefile.inc b/src/mainboard/asus/p5qpl-am/Makefile.inc
index ab352cb73db1..bb906a65a084 100644
--- a/src/mainboard/asus/p5qpl-am/Makefile.inc
+++ b/src/mainboard/asus/p5qpl-am/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
ramstage-y += cstates.c
romstage-y += variants/$(VARIANT_DIR)/gpio.c
diff --git a/src/mainboard/biostar/th61-itx/Makefile.inc b/src/mainboard/biostar/th61-itx/Makefile.inc
index 549a84fd128f..33b55d2d4ff0 100644
--- a/src/mainboard/biostar/th61-itx/Makefile.inc
+++ b/src/mainboard/biostar/th61-itx/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
romstage-y += gpio.c
diff --git a/src/mainboard/bytedance/bd_egs/Makefile.inc b/src/mainboard/bytedance/bd_egs/Makefile.inc
index e6e739e4e1e0..be3ae0c8a292 100644
--- a/src/mainboard/bytedance/bd_egs/Makefile.inc
+++ b/src/mainboard/bytedance/bd_egs/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += bootblock.c gpio.c
romstage-y += romstage.c
ramstage-y += ramstage.c gpio.c
diff --git a/src/mainboard/clevo/cml-u/Makefile.inc b/src/mainboard/clevo/cml-u/Makefile.inc
index e71e87a07d07..babadf538a3a 100644
--- a/src/mainboard/clevo/cml-u/Makefile.inc
+++ b/src/mainboard/clevo/cml-u/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
CPPFLAGS_common += -I$(src)/mainboard/$(MAINBOARDDIR)/include
CPPFLAGS_common += -I$(src)/mainboard/$(MAINBOARDDIR)/variants/$(VARIANT_DIR)/acpi
diff --git a/src/mainboard/clevo/cml-u/variants/l140cu/Makefile.inc b/src/mainboard/clevo/cml-u/variants/l140cu/Makefile.inc
index 09089b43adaf..7f547fb03a5b 100644
--- a/src/mainboard/clevo/cml-u/variants/l140cu/Makefile.inc
+++ b/src/mainboard/clevo/cml-u/variants/l140cu/Makefile.inc
@@ -1 +1,3 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
SPD_SOURCES = samsung-K4AAG165WA-BCTD
diff --git a/src/mainboard/clevo/tgl-u/Makefile.inc b/src/mainboard/clevo/tgl-u/Makefile.inc
index 0d57383595a7..ae492df4298d 100644
--- a/src/mainboard/clevo/tgl-u/Makefile.inc
+++ b/src/mainboard/clevo/tgl-u/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
CPPFLAGS_common += -I$(src)/mainboard/$(MAINBOARDDIR)/include
CPPFLAGS_common += -I$(src)/mainboard/$(MAINBOARDDIR)/variants/$(VARIANT_DIR)/acpi
diff --git a/src/mainboard/clevo/tgl-u/variants/l140mu/Makefile.inc b/src/mainboard/clevo/tgl-u/variants/l140mu/Makefile.inc
index 10cb4fb8af40..361cbcd7bc9d 100644
--- a/src/mainboard/clevo/tgl-u/variants/l140mu/Makefile.inc
+++ b/src/mainboard/clevo/tgl-u/variants/l140mu/Makefile.inc
@@ -1 +1,3 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
SPD_SOURCES = samsung-M471A1G44AB0-CWE
diff --git a/src/mainboard/compulab/intense_pc/Makefile.inc b/src/mainboard/compulab/intense_pc/Makefile.inc
index e402ffa605ce..e4b6fbf0f0a5 100644
--- a/src/mainboard/compulab/intense_pc/Makefile.inc
+++ b/src/mainboard/compulab/intense_pc/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
romstage-y += gpio.c
diff --git a/src/mainboard/emulation/qemu-i440fx/Makefile.inc b/src/mainboard/emulation/qemu-i440fx/Makefile.inc
index 7bd1c0212149..7d6041b62d5c 100644
--- a/src/mainboard/emulation/qemu-i440fx/Makefile.inc
+++ b/src/mainboard/emulation/qemu-i440fx/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
romstage-y += memmap.c
postcar-y += memmap.c
diff --git a/src/mainboard/emulation/qemu-q35/Makefile.inc b/src/mainboard/emulation/qemu-q35/Makefile.inc
index dc4e79436882..f4a89be06f7f 100644
--- a/src/mainboard/emulation/qemu-q35/Makefile.inc
+++ b/src/mainboard/emulation/qemu-q35/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += bootblock.c
bootblock-y += memmap.c
diff --git a/src/mainboard/foxconn/d41s/Makefile.inc b/src/mainboard/foxconn/d41s/Makefile.inc
index 057b5bfcd337..6e0b91475cd5 100644
--- a/src/mainboard/foxconn/d41s/Makefile.inc
+++ b/src/mainboard/foxconn/d41s/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
romstage-y += early_init.c
bootblock-y += early_init.c
ramstage-y += cstates.c
diff --git a/src/mainboard/foxconn/g41s-k/Makefile.inc b/src/mainboard/foxconn/g41s-k/Makefile.inc
index 161c623eaaa1..b4e5dcc3d794 100644
--- a/src/mainboard/foxconn/g41s-k/Makefile.inc
+++ b/src/mainboard/foxconn/g41s-k/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
ramstage-y += cstates.c
romstage-y += gpio.c
diff --git a/src/mainboard/gigabyte/ga-945gcm-s2l/Makefile.inc b/src/mainboard/gigabyte/ga-945gcm-s2l/Makefile.inc
index a34f3f31c78e..95250e28a6b3 100644
--- a/src/mainboard/gigabyte/ga-945gcm-s2l/Makefile.inc
+++ b/src/mainboard/gigabyte/ga-945gcm-s2l/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
ramstage-y += cstates.c
romstage-y += gpio.c
bootblock-y += early_init.c
diff --git a/src/mainboard/gigabyte/ga-g41m-es2l/Makefile.inc b/src/mainboard/gigabyte/ga-g41m-es2l/Makefile.inc
index 4100476891a2..de8c51494dc2 100644
--- a/src/mainboard/gigabyte/ga-g41m-es2l/Makefile.inc
+++ b/src/mainboard/gigabyte/ga-g41m-es2l/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
ramstage-y += cstates.c
romstage-y += gpio.c
diff --git a/src/mainboard/gigabyte/ga-h61m-series/Makefile.inc b/src/mainboard/gigabyte/ga-h61m-series/Makefile.inc
index 9916927d252b..6b13e84fbcc4 100644
--- a/src/mainboard/gigabyte/ga-h61m-series/Makefile.inc
+++ b/src/mainboard/gigabyte/ga-h61m-series/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += variants/$(VARIANT_DIR)/gpio.c
romstage-y += variants/$(VARIANT_DIR)/gpio.c
diff --git a/src/mainboard/google/asurada/Makefile.inc b/src/mainboard/google/asurada/Makefile.inc
index 84600b69cae2..63073bcbf7cb 100644
--- a/src/mainboard/google/asurada/Makefile.inc
+++ b/src/mainboard/google/asurada/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
subdirs-y += sdram_params/
bootblock-y += memlayout.ld
diff --git a/src/mainboard/google/asurada/sdram_params/Makefile.inc b/src/mainboard/google/asurada/sdram_params/Makefile.inc
index 20df2ba6cbdc..2ce244252acc 100644
--- a/src/mainboard/google/asurada/sdram_params/Makefile.inc
+++ b/src/mainboard/google/asurada/sdram_params/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
sdram-params :=
# Generic parameters
diff --git a/src/mainboard/google/brya/Makefile.inc b/src/mainboard/google/brya/Makefile.inc
index b98c3ee87c27..8c7e42d5f7ea 100644
--- a/src/mainboard/google/brya/Makefile.inc
+++ b/src/mainboard/google/brya/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += bootblock.c
verstage-$(CONFIG_CHROMEOS) += chromeos.c
diff --git a/src/mainboard/google/brya/variants/aurash/Makefile.inc b/src/mainboard/google/brya/variants/aurash/Makefile.inc
index b799b4d7b85d..35cff38dc823 100644
--- a/src/mainboard/google/brya/variants/aurash/Makefile.inc
+++ b/src/mainboard/google/brya/variants/aurash/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
romstage-y += gpio.c
diff --git a/src/mainboard/google/brya/variants/baseboard/brask/Makefile.inc b/src/mainboard/google/brya/variants/baseboard/brask/Makefile.inc
index 8121d7e3ae71..96950d7b7d3f 100644
--- a/src/mainboard/google/brya/variants/baseboard/brask/Makefile.inc
+++ b/src/mainboard/google/brya/variants/baseboard/brask/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
romstage-y += memory.c
diff --git a/src/mainboard/google/brya/variants/baseboard/brya/Makefile.inc b/src/mainboard/google/brya/variants/baseboard/brya/Makefile.inc
index f2efc1de3055..3a6695828f71 100644
--- a/src/mainboard/google/brya/variants/baseboard/brya/Makefile.inc
+++ b/src/mainboard/google/brya/variants/baseboard/brya/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
romstage-y += memory.c
diff --git a/src/mainboard/google/brya/variants/baseboard/hades/Makefile.inc b/src/mainboard/google/brya/variants/baseboard/hades/Makefile.inc
index 7c75e20e41e0..47123cd318ad 100644
--- a/src/mainboard/google/brya/variants/baseboard/hades/Makefile.inc
+++ b/src/mainboard/google/brya/variants/baseboard/hades/Makefile.inc
@@ -1,2 +1,4 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
romstage-y += memory.c
ramstage-y += ramstage.c
diff --git a/src/mainboard/google/brya/variants/baseboard/nissa/Makefile.inc b/src/mainboard/google/brya/variants/baseboard/nissa/Makefile.inc
index 53aaa4114886..3743228e8e8b 100644
--- a/src/mainboard/google/brya/variants/baseboard/nissa/Makefile.inc
+++ b/src/mainboard/google/brya/variants/baseboard/nissa/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
romstage-y += memory.c
diff --git a/src/mainboard/google/brya/variants/brya0/Makefile.inc b/src/mainboard/google/brya/variants/brya0/Makefile.inc
index 52d03980daf0..4a7ff71e4566 100644
--- a/src/mainboard/google/brya/variants/brya0/Makefile.inc
+++ b/src/mainboard/google/brya/variants/brya0/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
romstage-y += gpio.c
ramstage-$(CONFIG_FW_CONFIG) += fw_config.c
diff --git a/src/mainboard/google/brya/variants/crota/Makefile.inc b/src/mainboard/google/brya/variants/crota/Makefile.inc
index f9d5990acec0..ebdc2e38e26a 100644
--- a/src/mainboard/google/brya/variants/crota/Makefile.inc
+++ b/src/mainboard/google/brya/variants/crota/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
romstage-y += gpio.c
diff --git a/src/mainboard/google/brya/variants/gaelin/Makefile.inc b/src/mainboard/google/brya/variants/gaelin/Makefile.inc
index 7d1f88652da7..2cddd114addc 100644
--- a/src/mainboard/google/brya/variants/gaelin/Makefile.inc
+++ b/src/mainboard/google/brya/variants/gaelin/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
romstage-y += gpio.c
diff --git a/src/mainboard/google/brya/variants/gothrax/Makefile.inc b/src/mainboard/google/brya/variants/gothrax/Makefile.inc
index 6c2934647040..a49954cc3513 100644
--- a/src/mainboard/google/brya/variants/gothrax/Makefile.inc
+++ b/src/mainboard/google/brya/variants/gothrax/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
romstage-y += gpio.c
diff --git a/src/mainboard/google/brya/variants/hades/Makefile.inc b/src/mainboard/google/brya/variants/hades/Makefile.inc
index 81d298a70823..e272dc2d765f 100644
--- a/src/mainboard/google/brya/variants/hades/Makefile.inc
+++ b/src/mainboard/google/brya/variants/hades/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
romstage-y += gpio.c
ramstage-y += gpio.c
diff --git a/src/mainboard/google/brya/variants/moli/Makefile.inc b/src/mainboard/google/brya/variants/moli/Makefile.inc
index b799b4d7b85d..35cff38dc823 100644
--- a/src/mainboard/google/brya/variants/moli/Makefile.inc
+++ b/src/mainboard/google/brya/variants/moli/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
romstage-y += gpio.c
diff --git a/src/mainboard/google/brya/variants/skolas/Makefile.inc b/src/mainboard/google/brya/variants/skolas/Makefile.inc
index 52d03980daf0..4a7ff71e4566 100644
--- a/src/mainboard/google/brya/variants/skolas/Makefile.inc
+++ b/src/mainboard/google/brya/variants/skolas/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
romstage-y += gpio.c
ramstage-$(CONFIG_FW_CONFIG) += fw_config.c
diff --git a/src/mainboard/google/brya/variants/skolas4es/Makefile.inc b/src/mainboard/google/brya/variants/skolas4es/Makefile.inc
index 52d03980daf0..4a7ff71e4566 100644
--- a/src/mainboard/google/brya/variants/skolas4es/Makefile.inc
+++ b/src/mainboard/google/brya/variants/skolas4es/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
romstage-y += gpio.c
ramstage-$(CONFIG_FW_CONFIG) += fw_config.c
diff --git a/src/mainboard/google/brya/variants/taeko/Makefile.inc b/src/mainboard/google/brya/variants/taeko/Makefile.inc
index 396e5be222c9..47f0432aeb12 100644
--- a/src/mainboard/google/brya/variants/taeko/Makefile.inc
+++ b/src/mainboard/google/brya/variants/taeko/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
romstage-y += gpio.c
diff --git a/src/mainboard/google/brya/variants/taeko4es/Makefile.inc b/src/mainboard/google/brya/variants/taeko4es/Makefile.inc
index 396e5be222c9..47f0432aeb12 100644
--- a/src/mainboard/google/brya/variants/taeko4es/Makefile.inc
+++ b/src/mainboard/google/brya/variants/taeko4es/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
romstage-y += gpio.c
diff --git a/src/mainboard/google/brya/variants/taniks/Makefile.inc b/src/mainboard/google/brya/variants/taniks/Makefile.inc
index 3ee0dc9e0dc8..61a70ec0ef6f 100644
--- a/src/mainboard/google/brya/variants/taniks/Makefile.inc
+++ b/src/mainboard/google/brya/variants/taniks/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
romstage-y += gpio.c
diff --git a/src/mainboard/google/cherry/Makefile.inc b/src/mainboard/google/cherry/Makefile.inc
index 4edbd38799f3..5fe133919cd8 100644
--- a/src/mainboard/google/cherry/Makefile.inc
+++ b/src/mainboard/google/cherry/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += memlayout.ld
bootblock-y += bootblock.c
bootblock-y += chromeos.c
diff --git a/src/mainboard/google/corsola/Makefile.inc b/src/mainboard/google/corsola/Makefile.inc
index da6775af2ee2..dce226f20cfe 100644
--- a/src/mainboard/google/corsola/Makefile.inc
+++ b/src/mainboard/google/corsola/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += memlayout.ld
bootblock-y += bootblock.c
bootblock-y += chromeos.c
diff --git a/src/mainboard/google/dedede/Makefile.inc b/src/mainboard/google/dedede/Makefile.inc
index ec1c065107b6..fdc26306bbc9 100644
--- a/src/mainboard/google/dedede/Makefile.inc
+++ b/src/mainboard/google/dedede/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += bootblock.c
bootblock-$(CONFIG_CHROMEOS) += chromeos.c
diff --git a/src/mainboard/google/dedede/variants/baseboard/Makefile.inc b/src/mainboard/google/dedede/variants/baseboard/Makefile.inc
index 2c3f2f698916..a58371afe952 100644
--- a/src/mainboard/google/dedede/variants/baseboard/Makefile.inc
+++ b/src/mainboard/google/dedede/variants/baseboard/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
romstage-y += gpio.c
diff --git a/src/mainboard/google/fizz/variants/baseboard/Makefile.inc b/src/mainboard/google/fizz/variants/baseboard/Makefile.inc
index 0ad298b5f46e..476f28f18ce3 100644
--- a/src/mainboard/google/fizz/variants/baseboard/Makefile.inc
+++ b/src/mainboard/google/fizz/variants/baseboard/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
ramstage-y += gpio.c
diff --git a/src/mainboard/google/fizz/variants/endeavour/Makefile.inc b/src/mainboard/google/fizz/variants/endeavour/Makefile.inc
index ded8a3572a2d..6ff6456dd03c 100644
--- a/src/mainboard/google/fizz/variants/endeavour/Makefile.inc
+++ b/src/mainboard/google/fizz/variants/endeavour/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
ramstage-y += gpio.c
diff --git a/src/mainboard/google/fizz/variants/karma/Makefile.inc b/src/mainboard/google/fizz/variants/karma/Makefile.inc
index ec115e465571..8d74101bb856 100644
--- a/src/mainboard/google/fizz/variants/karma/Makefile.inc
+++ b/src/mainboard/google/fizz/variants/karma/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
ramstage-y += gpio.c
diff --git a/src/mainboard/google/geralt/Makefile.inc b/src/mainboard/google/geralt/Makefile.inc
index d2fda23b875a..9a3549650243 100644
--- a/src/mainboard/google/geralt/Makefile.inc
+++ b/src/mainboard/google/geralt/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += memlayout.ld
bootblock-y += bootblock.c
bootblock-y += chromeos.c
diff --git a/src/mainboard/google/guybrush/variants/baseboard/Makefile.inc b/src/mainboard/google/guybrush/variants/baseboard/Makefile.inc
index cfd3faa6a64b..74d030dd74f7 100644
--- a/src/mainboard/google/guybrush/variants/baseboard/Makefile.inc
+++ b/src/mainboard/google/guybrush/variants/baseboard/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
bootblock-y += helpers.c
diff --git a/src/mainboard/google/kukui/Makefile.inc b/src/mainboard/google/kukui/Makefile.inc
index 968ee19627d6..7b0298d61eda 100644
--- a/src/mainboard/google/kukui/Makefile.inc
+++ b/src/mainboard/google/kukui/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
subdirs-y += sdram_params/
subdirs-y += panel_params/
diff --git a/src/mainboard/google/kukui/sdram_params/Makefile.inc b/src/mainboard/google/kukui/sdram_params/Makefile.inc
index cb8f427413c7..e7fc110973d4 100644
--- a/src/mainboard/google/kukui/sdram_params/Makefile.inc
+++ b/src/mainboard/google/kukui/sdram_params/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
sdram-params :=
sdram-params += sdram-lpddr4x-K4UBE3D4AA-MGCR-4GB
sdram-params += sdram-lpddr4x-H9HCNNNCPMALHR-4GB
diff --git a/src/mainboard/google/mistral/Makefile.inc b/src/mainboard/google/mistral/Makefile.inc
index 48faadf2e830..1cbaa8b3fac9 100644
--- a/src/mainboard/google/mistral/Makefile.inc
+++ b/src/mainboard/google/mistral/Makefile.inc
@@ -1,3 +1,4 @@
+## SPDX-License-Identifier: GPL-2.0-only
bootblock-y += chromeos.c
bootblock-y += reset.c
diff --git a/src/mainboard/google/myst/variants/baseboard/Makefile.inc b/src/mainboard/google/myst/variants/baseboard/Makefile.inc
index 9e9ec0dc53d2..d5e133a9ec72 100644
--- a/src/mainboard/google/myst/variants/baseboard/Makefile.inc
+++ b/src/mainboard/google/myst/variants/baseboard/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
ramstage-$(CONFIG_FW_CONFIG) += fw_config.c
diff --git a/src/mainboard/google/octopus/Makefile.inc b/src/mainboard/google/octopus/Makefile.inc
index dd49610f89cc..accb4633f37c 100644
--- a/src/mainboard/google/octopus/Makefile.inc
+++ b/src/mainboard/google/octopus/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += bootblock.c
bootblock-y += ec.c
diff --git a/src/mainboard/google/octopus/variants/ampton/Makefile.inc b/src/mainboard/google/octopus/variants/ampton/Makefile.inc
index dc1c1fe1eb4f..c717243faea9 100644
--- a/src/mainboard/google/octopus/variants/ampton/Makefile.inc
+++ b/src/mainboard/google/octopus/variants/ampton/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
romstage-y += gpio.c
diff --git a/src/mainboard/google/octopus/variants/baseboard/Makefile.inc b/src/mainboard/google/octopus/variants/baseboard/Makefile.inc
index 06f125c862a2..ace6dee6303b 100644
--- a/src/mainboard/google/octopus/variants/baseboard/Makefile.inc
+++ b/src/mainboard/google/octopus/variants/baseboard/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
romstage-y += memory.c
diff --git a/src/mainboard/google/octopus/variants/bloog/Makefile.inc b/src/mainboard/google/octopus/variants/bloog/Makefile.inc
index 5228e706f14e..86a53c078ef6 100644
--- a/src/mainboard/google/octopus/variants/bloog/Makefile.inc
+++ b/src/mainboard/google/octopus/variants/bloog/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
romstage-y += gpio.c
diff --git a/src/mainboard/google/octopus/variants/bobba/Makefile.inc b/src/mainboard/google/octopus/variants/bobba/Makefile.inc
index a854b669d3b0..17f22e52aaba 100644
--- a/src/mainboard/google/octopus/variants/bobba/Makefile.inc
+++ b/src/mainboard/google/octopus/variants/bobba/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
romstage-y += gpio.c
diff --git a/src/mainboard/google/octopus/variants/casta/Makefile.inc b/src/mainboard/google/octopus/variants/casta/Makefile.inc
index ba865e9f826a..3c26f0ae6879 100644
--- a/src/mainboard/google/octopus/variants/casta/Makefile.inc
+++ b/src/mainboard/google/octopus/variants/casta/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
ramstage-y += gpio.c
diff --git a/src/mainboard/google/octopus/variants/dood/Makefile.inc b/src/mainboard/google/octopus/variants/dood/Makefile.inc
index a854b669d3b0..17f22e52aaba 100644
--- a/src/mainboard/google/octopus/variants/dood/Makefile.inc
+++ b/src/mainboard/google/octopus/variants/dood/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
romstage-y += gpio.c
diff --git a/src/mainboard/google/octopus/variants/fleex/Makefile.inc b/src/mainboard/google/octopus/variants/fleex/Makefile.inc
index 9a649bda6a34..ac62f6b7bae1 100644
--- a/src/mainboard/google/octopus/variants/fleex/Makefile.inc
+++ b/src/mainboard/google/octopus/variants/fleex/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
romstage-y += gpio.c
diff --git a/src/mainboard/google/octopus/variants/foob/Makefile.inc b/src/mainboard/google/octopus/variants/foob/Makefile.inc
index 86a10df2a08f..a2f85b09f615 100644
--- a/src/mainboard/google/octopus/variants/foob/Makefile.inc
+++ b/src/mainboard/google/octopus/variants/foob/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
romstage-y += gpio.c
ramstage-y += gpio.c
diff --git a/src/mainboard/google/octopus/variants/garg/Makefile.inc b/src/mainboard/google/octopus/variants/garg/Makefile.inc
index 16211b7eaba6..6d41a6d35cd1 100644
--- a/src/mainboard/google/octopus/variants/garg/Makefile.inc
+++ b/src/mainboard/google/octopus/variants/garg/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
romstage-y += gpio.c
diff --git a/src/mainboard/google/octopus/variants/lick/Makefile.inc b/src/mainboard/google/octopus/variants/lick/Makefile.inc
index 9fb63f5f433b..9f8b7815b535 100644
--- a/src/mainboard/google/octopus/variants/lick/Makefile.inc
+++ b/src/mainboard/google/octopus/variants/lick/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
ramstage-y += gpio.c
diff --git a/src/mainboard/google/octopus/variants/meep/Makefile.inc b/src/mainboard/google/octopus/variants/meep/Makefile.inc
index 7277888358a0..4526e12ac6d0 100644
--- a/src/mainboard/google/octopus/variants/meep/Makefile.inc
+++ b/src/mainboard/google/octopus/variants/meep/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
romstage-y += gpio.c
diff --git a/src/mainboard/google/octopus/variants/phaser/Makefile.inc b/src/mainboard/google/octopus/variants/phaser/Makefile.inc
index 1b171c5e31c8..eda39ac58d73 100644
--- a/src/mainboard/google/octopus/variants/phaser/Makefile.inc
+++ b/src/mainboard/google/octopus/variants/phaser/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
romstage-y += gpio.c
diff --git a/src/mainboard/google/octopus/variants/yorp/Makefile.inc b/src/mainboard/google/octopus/variants/yorp/Makefile.inc
index 0ec849f5b563..f1a61afdcc4a 100644
--- a/src/mainboard/google/octopus/variants/yorp/Makefile.inc
+++ b/src/mainboard/google/octopus/variants/yorp/Makefile.inc
@@ -1,2 +1,4 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
romstage-y += gpio.c
diff --git a/src/mainboard/google/poppy/spd/Makefile.inc b/src/mainboard/google/poppy/spd/Makefile.inc
index 997352cd0cec..83fbfc5cc649 100644
--- a/src/mainboard/google/poppy/spd/Makefile.inc
+++ b/src/mainboard/google/poppy/spd/Makefile.inc
@@ -1,3 +1,4 @@
+## SPDX-License-Identifier: GPL-2.0-only
SEC_SPD_BIN = $(obj)/sec-spd.bin
diff --git a/src/mainboard/google/poppy/variants/atlas/Makefile.inc b/src/mainboard/google/poppy/variants/atlas/Makefile.inc
index 397ef687e910..dc9062ced6b1 100644
--- a/src/mainboard/google/poppy/variants/atlas/Makefile.inc
+++ b/src/mainboard/google/poppy/variants/atlas/Makefile.inc
@@ -1,3 +1,4 @@
+## SPDX-License-Identifier: GPL-2.0-only
SPD_SOURCES = empty # 0b0000
SPD_SOURCES += samsung_dimm_K4E8E324EB-EGCF # 0b0001
diff --git a/src/mainboard/google/poppy/variants/baseboard/Makefile.inc b/src/mainboard/google/poppy/variants/baseboard/Makefile.inc
index 41669f2114f2..0d70ca23ddf5 100644
--- a/src/mainboard/google/poppy/variants/baseboard/Makefile.inc
+++ b/src/mainboard/google/poppy/variants/baseboard/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
romstage-y += memory.c
diff --git a/src/mainboard/google/poppy/variants/nami/Makefile.inc b/src/mainboard/google/poppy/variants/nami/Makefile.inc
index 7c1e4808a6dc..7d9e81edc2b1 100644
--- a/src/mainboard/google/poppy/variants/nami/Makefile.inc
+++ b/src/mainboard/google/poppy/variants/nami/Makefile.inc
@@ -1,3 +1,4 @@
+## SPDX-License-Identifier: GPL-2.0-only
# IMPORTANT!! When a new memory SPD is added here, please ensure that ddp_bitmap
# is correctly updated in memory.c to indicate if memory id is using DDP.
diff --git a/src/mainboard/google/poppy/variants/nautilus/Makefile.inc b/src/mainboard/google/poppy/variants/nautilus/Makefile.inc
index 3a36b83bdade..80e43fd6a247 100644
--- a/src/mainboard/google/poppy/variants/nautilus/Makefile.inc
+++ b/src/mainboard/google/poppy/variants/nautilus/Makefile.inc
@@ -1,3 +1,4 @@
+## SPDX-License-Identifier: GPL-2.0-only
SPD_SOURCES = samsung_dimm_K4E8E324EB-EGCF # 0b0000
SPD_SOURCES += samsung_dimm_K4E6E304EB-EGCF # 0b0001
diff --git a/src/mainboard/google/poppy/variants/nocturne/Makefile.inc b/src/mainboard/google/poppy/variants/nocturne/Makefile.inc
index 371655a94e37..f5544f6f6ac8 100644
--- a/src/mainboard/google/poppy/variants/nocturne/Makefile.inc
+++ b/src/mainboard/google/poppy/variants/nocturne/Makefile.inc
@@ -1,3 +1,4 @@
+## SPDX-License-Identifier: GPL-2.0-only
SPD_SOURCES = empty # 0b0000
SPD_SOURCES += samsung_dimm_K4E8E324EB-EGCF # 0b0001 4GB
diff --git a/src/mainboard/google/poppy/variants/poppy/Makefile.inc b/src/mainboard/google/poppy/variants/poppy/Makefile.inc
index ecd1451ea2a3..15d803a8c0c2 100644
--- a/src/mainboard/google/poppy/variants/poppy/Makefile.inc
+++ b/src/mainboard/google/poppy/variants/poppy/Makefile.inc
@@ -1,3 +1,4 @@
+## SPDX-License-Identifier: GPL-2.0-only
SPD_SOURCES = empty # 0b0000
SPD_SOURCES += micron_dimm_MT52L256M64D2PP-107 # 0b0001
diff --git a/src/mainboard/google/poppy/variants/rammus/Makefile.inc b/src/mainboard/google/poppy/variants/rammus/Makefile.inc
index 2baeb52494cb..6bee4f878d3d 100644
--- a/src/mainboard/google/poppy/variants/rammus/Makefile.inc
+++ b/src/mainboard/google/poppy/variants/rammus/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
SPD_SOURCES = micron_dimm_MT52L512M32D2PF-093 # 0b0000
SPD_SOURCES += samsung_dimm_K4E8E324EB-EGCF # 0b0001
SPD_SOURCES += micron_dimm_MT52L256M32D1PF-093 # 0b0010
diff --git a/src/mainboard/google/poppy/variants/soraka/Makefile.inc b/src/mainboard/google/poppy/variants/soraka/Makefile.inc
index 9b14da6c81ed..ec06f40e9d9e 100644
--- a/src/mainboard/google/poppy/variants/soraka/Makefile.inc
+++ b/src/mainboard/google/poppy/variants/soraka/Makefile.inc
@@ -1,3 +1,4 @@
+## SPDX-License-Identifier: GPL-2.0-only
SPD_SOURCES = empty # 0b0000
SPD_SOURCES += micron_dimm_MT52L256M64D2PP-107 # 0b0001
diff --git a/src/mainboard/google/reef/Makefile.inc b/src/mainboard/google/reef/Makefile.inc
index dd49610f89cc..accb4633f37c 100644
--- a/src/mainboard/google/reef/Makefile.inc
+++ b/src/mainboard/google/reef/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += bootblock.c
bootblock-y += ec.c
diff --git a/src/mainboard/google/reef/variants/baseboard/Makefile.inc b/src/mainboard/google/reef/variants/baseboard/Makefile.inc
index 1484261aede6..8ee85aff936c 100644
--- a/src/mainboard/google/reef/variants/baseboard/Makefile.inc
+++ b/src/mainboard/google/reef/variants/baseboard/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
romstage-y += gpio.c
diff --git a/src/mainboard/google/reef/variants/coral/Makefile.inc b/src/mainboard/google/reef/variants/coral/Makefile.inc
index 440ec9c545d2..9ec0276a096f 100644
--- a/src/mainboard/google/reef/variants/coral/Makefile.inc
+++ b/src/mainboard/google/reef/variants/coral/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
ramstage-y += mainboard.c
diff --git a/src/mainboard/google/reef/variants/pyro/Makefile.inc b/src/mainboard/google/reef/variants/pyro/Makefile.inc
index fd45b948ff46..be05cd4e5c6c 100644
--- a/src/mainboard/google/reef/variants/pyro/Makefile.inc
+++ b/src/mainboard/google/reef/variants/pyro/Makefile.inc
@@ -1 +1,3 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
romstage-y += memory.c
diff --git a/src/mainboard/google/reef/variants/snappy/Makefile.inc b/src/mainboard/google/reef/variants/snappy/Makefile.inc
index f3c87b231856..ffdfd17716b0 100644
--- a/src/mainboard/google/reef/variants/snappy/Makefile.inc
+++ b/src/mainboard/google/reef/variants/snappy/Makefile.inc
@@ -1 +1,3 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
ramstage-y += mainboard.c
diff --git a/src/mainboard/google/rex/Makefile.inc b/src/mainboard/google/rex/Makefile.inc
index cd6be1373870..8c60c591aa42 100644
--- a/src/mainboard/google/rex/Makefile.inc
+++ b/src/mainboard/google/rex/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += bootblock.c
verstage-$(CONFIG_CHROMEOS) += chromeos.c
diff --git a/src/mainboard/google/rex/variants/baseboard/ovis/Makefile.inc b/src/mainboard/google/rex/variants/baseboard/ovis/Makefile.inc
index bb3620adae7c..2bf1925f37f0 100644
--- a/src/mainboard/google/rex/variants/baseboard/ovis/Makefile.inc
+++ b/src/mainboard/google/rex/variants/baseboard/ovis/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
romstage-y += memory.c
ramstage-y += ramstage.c
diff --git a/src/mainboard/google/rex/variants/baseboard/rex/Makefile.inc b/src/mainboard/google/rex/variants/baseboard/rex/Makefile.inc
index bb3620adae7c..2bf1925f37f0 100644
--- a/src/mainboard/google/rex/variants/baseboard/rex/Makefile.inc
+++ b/src/mainboard/google/rex/variants/baseboard/rex/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
romstage-y += memory.c
ramstage-y += ramstage.c
diff --git a/src/mainboard/google/rex/variants/karis/Makefile.inc b/src/mainboard/google/rex/variants/karis/Makefile.inc
index 6c2934647040..a49954cc3513 100644
--- a/src/mainboard/google/rex/variants/karis/Makefile.inc
+++ b/src/mainboard/google/rex/variants/karis/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
romstage-y += gpio.c
diff --git a/src/mainboard/google/rex/variants/ovis/Makefile.inc b/src/mainboard/google/rex/variants/ovis/Makefile.inc
index b7851227d7db..4c33dad4dbbc 100644
--- a/src/mainboard/google/rex/variants/ovis/Makefile.inc
+++ b/src/mainboard/google/rex/variants/ovis/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
romstage-y += gpio.c
romstage-y += memory.c
diff --git a/src/mainboard/google/rex/variants/rex0/Makefile.inc b/src/mainboard/google/rex/variants/rex0/Makefile.inc
index cdbf407ca585..0f9a28b2b577 100644
--- a/src/mainboard/google/rex/variants/rex0/Makefile.inc
+++ b/src/mainboard/google/rex/variants/rex0/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
romstage-y += gpio.c
ramstage-y += gpio.c
diff --git a/src/mainboard/google/rex/variants/screebo/Makefile.inc b/src/mainboard/google/rex/variants/screebo/Makefile.inc
index 192041b425ff..8bea0ff3904d 100644
--- a/src/mainboard/google/rex/variants/screebo/Makefile.inc
+++ b/src/mainboard/google/rex/variants/screebo/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
romstage-y += gpio.c
diff --git a/src/mainboard/google/skyrim/variants/baseboard/Makefile.inc b/src/mainboard/google/skyrim/variants/baseboard/Makefile.inc
index 7828cf1bff70..0f7cc89975d4 100644
--- a/src/mainboard/google/skyrim/variants/baseboard/Makefile.inc
+++ b/src/mainboard/google/skyrim/variants/baseboard/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
romstage-y += gpio.c
diff --git a/src/mainboard/hp/compaq_8200_elite_sff/Makefile.inc b/src/mainboard/hp/compaq_8200_elite_sff/Makefile.inc
index f0b34f984011..2099428db978 100644
--- a/src/mainboard/hp/compaq_8200_elite_sff/Makefile.inc
+++ b/src/mainboard/hp/compaq_8200_elite_sff/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
romstage-y += gpio.c
ramstage-$(CONFIG_MAINBOARD_USE_LIBGFXINIT) += gma-mainboard.ads
diff --git a/src/mainboard/hp/compaq_elite_8300_usdt/Makefile.inc b/src/mainboard/hp/compaq_elite_8300_usdt/Makefile.inc
index 18391d8b18dd..fb492d358372 100644
--- a/src/mainboard/hp/compaq_elite_8300_usdt/Makefile.inc
+++ b/src/mainboard/hp/compaq_elite_8300_usdt/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += early_init.c
bootblock-y += gpio.c
romstage-y += early_init.c
diff --git a/src/mainboard/hp/folio_9480m/Makefile.inc b/src/mainboard/hp/folio_9480m/Makefile.inc
index ebe01aea99c1..6f4727ab814f 100644
--- a/src/mainboard/hp/folio_9480m/Makefile.inc
+++ b/src/mainboard/hp/folio_9480m/Makefile.inc
@@ -1,2 +1,4 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
romstage-y += gpio.c
ramstage-$(CONFIG_MAINBOARD_USE_LIBGFXINIT) += gma-mainboard.ads
diff --git a/src/mainboard/hp/z220_series/Makefile.inc b/src/mainboard/hp/z220_series/Makefile.inc
index 00426a88b947..69ef08873b63 100644
--- a/src/mainboard/hp/z220_series/Makefile.inc
+++ b/src/mainboard/hp/z220_series/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += variants/$(VARIANT_DIR)/gpio.c
romstage-y += variants/$(VARIANT_DIR)/gpio.c
ramstage-$(CONFIG_MAINBOARD_USE_LIBGFXINIT) += gma-mainboard.ads
diff --git a/src/mainboard/ibase/mb899/Makefile.inc b/src/mainboard/ibase/mb899/Makefile.inc
index 992c3736a752..ad8a084da82f 100644
--- a/src/mainboard/ibase/mb899/Makefile.inc
+++ b/src/mainboard/ibase/mb899/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
ramstage-y += superio_hwm.c
ramstage-y += cstates.c
romstage-y += gpio.c
diff --git a/src/mainboard/ibm/sbp1/Makefile.inc b/src/mainboard/ibm/sbp1/Makefile.inc
index 0688aa1973d9..4c7a7beee194 100644
--- a/src/mainboard/ibm/sbp1/Makefile.inc
+++ b/src/mainboard/ibm/sbp1/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += bootblock.c
romstage-y += romstage.c
ramstage-y += ramstage.c
diff --git a/src/mainboard/intel/apollolake_rvp/Makefile.inc b/src/mainboard/intel/apollolake_rvp/Makefile.inc
index 8501868fbfe4..d604d021c51c 100644
--- a/src/mainboard/intel/apollolake_rvp/Makefile.inc
+++ b/src/mainboard/intel/apollolake_rvp/Makefile.inc
@@ -1 +1,3 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += bootblock.c
diff --git a/src/mainboard/intel/archercity_crb/Makefile.inc b/src/mainboard/intel/archercity_crb/Makefile.inc
index 0688aa1973d9..4c7a7beee194 100644
--- a/src/mainboard/intel/archercity_crb/Makefile.inc
+++ b/src/mainboard/intel/archercity_crb/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += bootblock.c
romstage-y += romstage.c
ramstage-y += ramstage.c
diff --git a/src/mainboard/intel/cedarisland_crb/Makefile.inc b/src/mainboard/intel/cedarisland_crb/Makefile.inc
index 3da456e436d7..bf162bb01ed7 100644
--- a/src/mainboard/intel/cedarisland_crb/Makefile.inc
+++ b/src/mainboard/intel/cedarisland_crb/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += bootblock.c
romstage-y += romstage.c
ramstage-y += ramstage.c
diff --git a/src/mainboard/intel/coffeelake_rvp/variants/baseboard/Makefile.inc b/src/mainboard/intel/coffeelake_rvp/variants/baseboard/Makefile.inc
index 0ad298b5f46e..476f28f18ce3 100644
--- a/src/mainboard/intel/coffeelake_rvp/variants/baseboard/Makefile.inc
+++ b/src/mainboard/intel/coffeelake_rvp/variants/baseboard/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
ramstage-y += gpio.c
diff --git a/src/mainboard/intel/d510mo/Makefile.inc b/src/mainboard/intel/d510mo/Makefile.inc
index f87689b8a1d1..e546b9d6a504 100644
--- a/src/mainboard/intel/d510mo/Makefile.inc
+++ b/src/mainboard/intel/d510mo/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += early_init.c
romstage-y += early_init.c
ramstage-y += cstates.c
diff --git a/src/mainboard/intel/d945gclf/Makefile.inc b/src/mainboard/intel/d945gclf/Makefile.inc
index a34f3f31c78e..95250e28a6b3 100644
--- a/src/mainboard/intel/d945gclf/Makefile.inc
+++ b/src/mainboard/intel/d945gclf/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
ramstage-y += cstates.c
romstage-y += gpio.c
bootblock-y += early_init.c
diff --git a/src/mainboard/intel/dcp847ske/Makefile.inc b/src/mainboard/intel/dcp847ske/Makefile.inc
index 08aa2ddde796..f8c155e4c3f6 100644
--- a/src/mainboard/intel/dcp847ske/Makefile.inc
+++ b/src/mainboard/intel/dcp847ske/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += early_southbridge.c
romstage-y += early_southbridge.c
bootblock-y += gpio.c
diff --git a/src/mainboard/intel/dg41wv/Makefile.inc b/src/mainboard/intel/dg41wv/Makefile.inc
index 4100476891a2..de8c51494dc2 100644
--- a/src/mainboard/intel/dg41wv/Makefile.inc
+++ b/src/mainboard/intel/dg41wv/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
ramstage-y += cstates.c
romstage-y += gpio.c
diff --git a/src/mainboard/intel/dq67sw/Makefile.inc b/src/mainboard/intel/dq67sw/Makefile.inc
index 18391d8b18dd..fb492d358372 100644
--- a/src/mainboard/intel/dq67sw/Makefile.inc
+++ b/src/mainboard/intel/dq67sw/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += early_init.c
bootblock-y += gpio.c
romstage-y += early_init.c
diff --git a/src/mainboard/intel/glkrvp/Makefile.inc b/src/mainboard/intel/glkrvp/Makefile.inc
index 72247b2341df..965a6f86ffe1 100644
--- a/src/mainboard/intel/glkrvp/Makefile.inc
+++ b/src/mainboard/intel/glkrvp/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += bootblock.c
bootblock-y += ec.c
diff --git a/src/mainboard/intel/glkrvp/variants/baseboard/Makefile.inc b/src/mainboard/intel/glkrvp/variants/baseboard/Makefile.inc
index d2d344c5e0e5..b0d35e84bcf0 100644
--- a/src/mainboard/intel/glkrvp/variants/baseboard/Makefile.inc
+++ b/src/mainboard/intel/glkrvp/variants/baseboard/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
romstage-y += boardid.c
diff --git a/src/mainboard/intel/leafhill/Makefile.inc b/src/mainboard/intel/leafhill/Makefile.inc
index c3077e7c7ec4..ec5b26252afc 100644
--- a/src/mainboard/intel/leafhill/Makefile.inc
+++ b/src/mainboard/intel/leafhill/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += bootblock.c
romstage-y += romstage.c
diff --git a/src/mainboard/intel/minnow3/Makefile.inc b/src/mainboard/intel/minnow3/Makefile.inc
index 3e9bf68af534..a90af2962bd5 100644
--- a/src/mainboard/intel/minnow3/Makefile.inc
+++ b/src/mainboard/intel/minnow3/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += bootblock.c
bootblock-y += gpio.c
diff --git a/src/mainboard/inventec/transformers/Makefile.inc b/src/mainboard/inventec/transformers/Makefile.inc
index 7619419f674b..ecb6ef2217fc 100644
--- a/src/mainboard/inventec/transformers/Makefile.inc
+++ b/src/mainboard/inventec/transformers/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += bootblock.c
romstage-y += romstage.c
romstage-$(CONFIG_IPMI_KCS_ROMSTAGE) += ipmi.c
diff --git a/src/mainboard/kontron/986lcd-m/Makefile.inc b/src/mainboard/kontron/986lcd-m/Makefile.inc
index a34f3f31c78e..95250e28a6b3 100644
--- a/src/mainboard/kontron/986lcd-m/Makefile.inc
+++ b/src/mainboard/kontron/986lcd-m/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
ramstage-y += cstates.c
romstage-y += gpio.c
bootblock-y += early_init.c
diff --git a/src/mainboard/kontron/ktqm77/Makefile.inc b/src/mainboard/kontron/ktqm77/Makefile.inc
index e402ffa605ce..e4b6fbf0f0a5 100644
--- a/src/mainboard/kontron/ktqm77/Makefile.inc
+++ b/src/mainboard/kontron/ktqm77/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
romstage-y += gpio.c
diff --git a/src/mainboard/kontron/mal10/Makefile.inc b/src/mainboard/kontron/mal10/Makefile.inc
index 7fbab00337bd..2a21e0314669 100644
--- a/src/mainboard/kontron/mal10/Makefile.inc
+++ b/src/mainboard/kontron/mal10/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += bootblock.c
ramstage-y += ramstage.c
ramstage-$(CONFIG_MAINBOARD_USE_LIBGFXINIT) += variants/$(VARIANT_DIR)/gma-mainboard.ads
diff --git a/src/mainboard/kontron/mal10/carriers/t10-tni/Makefile.inc b/src/mainboard/kontron/mal10/carriers/t10-tni/Makefile.inc
index c291d45ebd07..5d3bcc436e5c 100644
--- a/src/mainboard/kontron/mal10/carriers/t10-tni/Makefile.inc
+++ b/src/mainboard/kontron/mal10/carriers/t10-tni/Makefile.inc
@@ -1 +1,3 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
ramstage-y += gpio.c
diff --git a/src/mainboard/kontron/mal10/variants/mal10/Makefile.inc b/src/mainboard/kontron/mal10/variants/mal10/Makefile.inc
index 4b48156a52b1..f0aa6b19f3b0 100644
--- a/src/mainboard/kontron/mal10/variants/mal10/Makefile.inc
+++ b/src/mainboard/kontron/mal10/variants/mal10/Makefile.inc
@@ -1 +1,3 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
diff --git a/src/mainboard/lenovo/haswell/Makefile.inc b/src/mainboard/lenovo/haswell/Makefile.inc
index d1300f8f67e5..3861ea195d3b 100644
--- a/src/mainboard/lenovo/haswell/Makefile.inc
+++ b/src/mainboard/lenovo/haswell/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
romstage-y += variants/$(VARIANT_DIR)/gpio.c
romstage-y += variants/$(VARIANT_DIR)/romstage.c
diff --git a/src/mainboard/lenovo/haswell/variants/t440p/Makefile.inc b/src/mainboard/lenovo/haswell/variants/t440p/Makefile.inc
index f3c87b231856..ffdfd17716b0 100644
--- a/src/mainboard/lenovo/haswell/variants/t440p/Makefile.inc
+++ b/src/mainboard/lenovo/haswell/variants/t440p/Makefile.inc
@@ -1 +1,3 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
ramstage-y += mainboard.c
diff --git a/src/mainboard/lenovo/s230u/Makefile.inc b/src/mainboard/lenovo/s230u/Makefile.inc
index 31bb642edf51..073d8b2e90f8 100644
--- a/src/mainboard/lenovo/s230u/Makefile.inc
+++ b/src/mainboard/lenovo/s230u/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
romstage-y += gpio.c
ramstage-y += ec.c
diff --git a/src/mainboard/lenovo/t430/Makefile.inc b/src/mainboard/lenovo/t430/Makefile.inc
index e402ffa605ce..e4b6fbf0f0a5 100644
--- a/src/mainboard/lenovo/t430/Makefile.inc
+++ b/src/mainboard/lenovo/t430/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
romstage-y += gpio.c
diff --git a/src/mainboard/lenovo/thinkcentre_a58/Makefile.inc b/src/mainboard/lenovo/thinkcentre_a58/Makefile.inc
index 4100476891a2..de8c51494dc2 100644
--- a/src/mainboard/lenovo/thinkcentre_a58/Makefile.inc
+++ b/src/mainboard/lenovo/thinkcentre_a58/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
ramstage-y += cstates.c
romstage-y += gpio.c
diff --git a/src/mainboard/msi/h81m-p33/Makefile.inc b/src/mainboard/msi/h81m-p33/Makefile.inc
index d9a8d18d0de0..54643607ce06 100644
--- a/src/mainboard/msi/h81m-p33/Makefile.inc
+++ b/src/mainboard/msi/h81m-p33/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
romstage-y += gpio.c
ramstage-$(CONFIG_MAINBOARD_USE_LIBGFXINIT) += gma-mainboard.ads
diff --git a/src/mainboard/msi/ms7707/Makefile.inc b/src/mainboard/msi/ms7707/Makefile.inc
index 2fa05da9ac86..10bd6bcb8834 100644
--- a/src/mainboard/msi/ms7707/Makefile.inc
+++ b/src/mainboard/msi/ms7707/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
romstage-y += gpio.c
bootblock-y += early_init.c
diff --git a/src/mainboard/siemens/mc_apl1/Makefile.inc b/src/mainboard/siemens/mc_apl1/Makefile.inc
index 124e3806ffda..e179201c9c78 100644
--- a/src/mainboard/siemens/mc_apl1/Makefile.inc
+++ b/src/mainboard/siemens/mc_apl1/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += bootblock.c
# The inclusion of romstage.c is not necessary here.
diff --git a/src/mainboard/siemens/mc_apl1/variants/baseboard/Makefile.inc b/src/mainboard/siemens/mc_apl1/variants/baseboard/Makefile.inc
index e553581dd505..be05cd4e5c6c 100644
--- a/src/mainboard/siemens/mc_apl1/variants/baseboard/Makefile.inc
+++ b/src/mainboard/siemens/mc_apl1/variants/baseboard/Makefile.inc
@@ -1,2 +1,3 @@
+## SPDX-License-Identifier: GPL-2.0-only
romstage-y += memory.c
diff --git a/src/mainboard/siemens/mc_apl1/variants/mc_apl1/Makefile.inc b/src/mainboard/siemens/mc_apl1/variants/mc_apl1/Makefile.inc
index 3629aca053d2..dff9c79c88a9 100644
--- a/src/mainboard/siemens/mc_apl1/variants/mc_apl1/Makefile.inc
+++ b/src/mainboard/siemens/mc_apl1/variants/mc_apl1/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
ramstage-y += gpio.c
diff --git a/src/mainboard/siemens/mc_apl1/variants/mc_apl2/Makefile.inc b/src/mainboard/siemens/mc_apl1/variants/mc_apl2/Makefile.inc
index 152b46ece113..f2a034c8c827 100644
--- a/src/mainboard/siemens/mc_apl1/variants/mc_apl2/Makefile.inc
+++ b/src/mainboard/siemens/mc_apl1/variants/mc_apl2/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
ramstage-y += gpio.c
diff --git a/src/mainboard/siemens/mc_apl1/variants/mc_apl3/Makefile.inc b/src/mainboard/siemens/mc_apl1/variants/mc_apl3/Makefile.inc
index 152b46ece113..f2a034c8c827 100644
--- a/src/mainboard/siemens/mc_apl1/variants/mc_apl3/Makefile.inc
+++ b/src/mainboard/siemens/mc_apl1/variants/mc_apl3/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
ramstage-y += gpio.c
diff --git a/src/mainboard/siemens/mc_apl1/variants/mc_apl4/Makefile.inc b/src/mainboard/siemens/mc_apl1/variants/mc_apl4/Makefile.inc
index e26339c5484a..621ffd13fa56 100644
--- a/src/mainboard/siemens/mc_apl1/variants/mc_apl4/Makefile.inc
+++ b/src/mainboard/siemens/mc_apl1/variants/mc_apl4/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
romstage-y += memory.c
diff --git a/src/mainboard/siemens/mc_apl1/variants/mc_apl5/Makefile.inc b/src/mainboard/siemens/mc_apl1/variants/mc_apl5/Makefile.inc
index 3629aca053d2..dff9c79c88a9 100644
--- a/src/mainboard/siemens/mc_apl1/variants/mc_apl5/Makefile.inc
+++ b/src/mainboard/siemens/mc_apl1/variants/mc_apl5/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
ramstage-y += gpio.c
diff --git a/src/mainboard/siemens/mc_apl1/variants/mc_apl6/Makefile.inc b/src/mainboard/siemens/mc_apl1/variants/mc_apl6/Makefile.inc
index 152b46ece113..f2a034c8c827 100644
--- a/src/mainboard/siemens/mc_apl1/variants/mc_apl6/Makefile.inc
+++ b/src/mainboard/siemens/mc_apl1/variants/mc_apl6/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
ramstage-y += gpio.c
diff --git a/src/mainboard/siemens/mc_apl1/variants/mc_apl7/Makefile.inc b/src/mainboard/siemens/mc_apl1/variants/mc_apl7/Makefile.inc
index ecab3ccc3391..af6f16c3ec0a 100644
--- a/src/mainboard/siemens/mc_apl1/variants/mc_apl7/Makefile.inc
+++ b/src/mainboard/siemens/mc_apl1/variants/mc_apl7/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
romstage-y += memory.c
diff --git a/src/mainboard/supermicro/x9scl/Makefile.inc b/src/mainboard/supermicro/x9scl/Makefile.inc
index 3465dfeca633..c83c7f361857 100644
--- a/src/mainboard/supermicro/x9scl/Makefile.inc
+++ b/src/mainboard/supermicro/x9scl/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += early_init.c
bootblock-y += gpio.c
romstage-y += early_init.c
diff --git a/src/mainboard/system76/addw1/Makefile.inc b/src/mainboard/system76/addw1/Makefile.inc
index fedde68c13d5..09424595d72c 100644
--- a/src/mainboard/system76/addw1/Makefile.inc
+++ b/src/mainboard/system76/addw1/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
CPPFLAGS_common += -I$(src)/mainboard/$(MAINBOARDDIR)/include
bootblock-y += bootblock.c
diff --git a/src/mainboard/system76/adl/Makefile.inc b/src/mainboard/system76/adl/Makefile.inc
index 9dea9f3b1fec..c5334f1f0cf4 100644
--- a/src/mainboard/system76/adl/Makefile.inc
+++ b/src/mainboard/system76/adl/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
CPPFLAGS_common += -I$(src)/mainboard/$(MAINBOARDDIR)/include
bootblock-y += bootblock.c
diff --git a/src/mainboard/system76/bonw14/Makefile.inc b/src/mainboard/system76/bonw14/Makefile.inc
index a866021880e9..2efcac5f428a 100644
--- a/src/mainboard/system76/bonw14/Makefile.inc
+++ b/src/mainboard/system76/bonw14/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
CPPFLAGS_common += -I$(src)/mainboard/$(MAINBOARDDIR)/include
bootblock-y += bootblock.c
diff --git a/src/mainboard/system76/cml-u/Makefile.inc b/src/mainboard/system76/cml-u/Makefile.inc
index 51ad54367e22..921112cee916 100644
--- a/src/mainboard/system76/cml-u/Makefile.inc
+++ b/src/mainboard/system76/cml-u/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
CPPFLAGS_common += -I$(src)/mainboard/$(MAINBOARDDIR)/include
bootblock-y += bootblock.c
diff --git a/src/mainboard/system76/gaze15/Makefile.inc b/src/mainboard/system76/gaze15/Makefile.inc
index 32a409992fe9..72f13667d314 100644
--- a/src/mainboard/system76/gaze15/Makefile.inc
+++ b/src/mainboard/system76/gaze15/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
CPPFLAGS_common += -I$(src)/mainboard/$(MAINBOARDDIR)/include
bootblock-y += bootblock.c
diff --git a/src/mainboard/system76/kbl-u/Makefile.inc b/src/mainboard/system76/kbl-u/Makefile.inc
index d749e412cce0..bf3828de9685 100644
--- a/src/mainboard/system76/kbl-u/Makefile.inc
+++ b/src/mainboard/system76/kbl-u/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
CPPFLAGS_common += -I$(src)/mainboard/$(MAINBOARDDIR)/include
bootblock-y += bootblock.c
diff --git a/src/mainboard/system76/oryp5/Makefile.inc b/src/mainboard/system76/oryp5/Makefile.inc
index 7c0701e97c06..e52cccafc8c2 100644
--- a/src/mainboard/system76/oryp5/Makefile.inc
+++ b/src/mainboard/system76/oryp5/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
CPPFLAGS_common += -I$(src)/mainboard/$(MAINBOARDDIR)/include
bootblock-y += bootblock.c
diff --git a/src/mainboard/system76/oryp6/Makefile.inc b/src/mainboard/system76/oryp6/Makefile.inc
index 2267eb6f9f69..ab8e965d8727 100644
--- a/src/mainboard/system76/oryp6/Makefile.inc
+++ b/src/mainboard/system76/oryp6/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
CPPFLAGS_common += -I$(src)/mainboard/$(MAINBOARDDIR)/include
bootblock-y += bootblock.c
diff --git a/src/mainboard/system76/tgl-u/Makefile.inc b/src/mainboard/system76/tgl-u/Makefile.inc
index ca14835be792..28ada02313e9 100644
--- a/src/mainboard/system76/tgl-u/Makefile.inc
+++ b/src/mainboard/system76/tgl-u/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
CPPFLAGS_common += -I$(src)/mainboard/$(MAINBOARDDIR)/include
ifeq ($(CONFIG_BOARD_SYSTEM76_GALP5),y)
diff --git a/src/mainboard/system76/whl-u/Makefile.inc b/src/mainboard/system76/whl-u/Makefile.inc
index d749e412cce0..bf3828de9685 100644
--- a/src/mainboard/system76/whl-u/Makefile.inc
+++ b/src/mainboard/system76/whl-u/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
CPPFLAGS_common += -I$(src)/mainboard/$(MAINBOARDDIR)/include
bootblock-y += bootblock.c
diff --git a/src/mainboard/up/squared/Makefile.inc b/src/mainboard/up/squared/Makefile.inc
index af2508e8cf68..68ddfca420c4 100644
--- a/src/mainboard/up/squared/Makefile.inc
+++ b/src/mainboard/up/squared/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += bootblock.c
romstage-y += romstage.c