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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)
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 58198971cd..115d7e9cbd 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 665a95f195..36e42581cf 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 d9a8d18d0d..54643607ce 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-$(CONFIG_MAINBOARD_USE_LIBGFXINIT) += gma-mainboard.ads
diff --git a/src/mainboard/asrock/g41c-gs/Makefile.inc b/src/mainboard/asrock/g41c-gs/Makefile.inc
index ab352cb73d..bb906a65a0 100644
--- a/src/mainboard/asrock/g41c-gs/Makefile.inc
+++ b/src/mainboard/asrock/g41c-gs/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
ramstage-y += cstates.c
romstage-y += variants/$(VARIANT_DIR)/gpio.c
diff --git a/src/mainboard/asus/p2b/Makefile.inc b/src/mainboard/asus/p2b/Makefile.inc
index eb48944b6e..6e1fb3fef1 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 a34f3f31c7..95250e28a6 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 ab352cb73d..bb906a65a0 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/$(VARIANT_DIR)/gpio.c
diff --git a/src/mainboard/biostar/th61-itx/Makefile.inc b/src/mainboard/biostar/th61-itx/Makefile.inc
index 549a84fd12..33b55d2d4f 100644
--- a/src/mainboard/biostar/th61-itx/Makefile.inc
+++ b/src/mainboard/biostar/th61-itx/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += gpio.c
romstage-y += gpio.c
diff --git a/src/mainboard/bytedance/bd_egs/Makefile.inc b/src/mainboard/bytedance/bd_egs/Makefile.inc
index e6e739e4e1..be3ae0c8a2 100644
--- a/src/mainboard/bytedance/bd_egs/Makefile.inc
+++ b/src/mainboard/bytedance/bd_egs/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += bootblock.c gpio.c
romstage-y += romstage.c
ramstage-y += ramstage.c gpio.c
diff --git a/src/mainboard/clevo/cml-u/Makefile.inc b/src/mainboard/clevo/cml-u/Makefile.inc
index e71e87a07d..babadf538a 100644
--- a/src/mainboard/clevo/cml-u/Makefile.inc
+++ b/src/mainboard/clevo/cml-u/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
CPPFLAGS_common += -I$(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 09089b43ad..7f547fb03a 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 0d57383595..ae492df429 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 10cb4fb8af..361cbcd7bc 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 e402ffa605..e4b6fbf0f0 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 7bd1c02121..7d6041b62d 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 dc4e794368..f4a89be06f 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 057b5bfcd3..6e0b91475c 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 161c623eaa..b4e5dcc3d7 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 a34f3f31c7..95250e28a6 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 4100476891..de8c51494d 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 9916927d25..6b13e84fbc 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/$(VARIANT_DIR)/gpio.c
diff --git a/src/mainboard/google/asurada/Makefile.inc b/src/mainboard/google/asurada/Makefile.inc
index 84600b69ca..63073bcbf7 100644
--- a/src/mainboard/google/asurada/Makefile.inc
+++ b/src/mainboard/google/asurada/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
subdirs-y += sdram_params/
bootblock-y += memlayout.ld
diff --git a/src/mainboard/google/asurada/sdram_params/Makefile.inc b/src/mainboard/google/asurada/sdram_params/Makefile.inc
index 20df2ba6cb..2ce244252a 100644
--- a/src/mainboard/google/asurada/sdram_params/Makefile.inc
+++ b/src/mainboard/google/asurada/sdram_params/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
sdram-params :=
# Generic parameters
diff --git a/src/mainboard/google/brya/Makefile.inc b/src/mainboard/google/brya/Makefile.inc
index b98c3ee87c..8c7e42d5f7 100644
--- a/src/mainboard/google/brya/Makefile.inc
+++ b/src/mainboard/google/brya/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += bootblock.c
verstage-$(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 b799b4d7b8..35cff38dc8 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 8121d7e3ae..96950d7b7d 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 f2efc1de30..3a6695828f 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 7c75e20e41..47123cd318 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 53aaa41148..3743228e8e 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 52d03980da..4a7ff71e45 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 f9d5990ace..ebdc2e38e2 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 7d1f88652d..2cddd114ad 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 6c29346470..a49954cc35 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 81d298a708..e272dc2d76 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 b799b4d7b8..35cff38dc8 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 52d03980da..4a7ff71e45 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 52d03980da..4a7ff71e45 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 396e5be222..47f0432aeb 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 396e5be222..47f0432aeb 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 3ee0dc9e0d..61a70ec0ef 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 4edbd38799..5fe133919c 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 da6775af2e..dce226f20c 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 ec1c065107..fdc26306bb 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 2c3f2f6989..a58371afe9 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 0ad298b5f4..476f28f18c 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 ded8a3572a..6ff6456dd0 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 ec115e4655..8d74101bb8 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 d2fda23b87..9a35496502 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 cfd3faa6a6..74d030dd74 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 968ee19627..7b0298d61e 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 cb8f427413..e7fc110973 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 48faadf2e8..1cbaa8b3fa 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 9e9ec0dc53..d5e133a9ec 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 dd49610f89..accb4633f3 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 dc1c1fe1eb..c717243fae 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 06f125c862..ace6dee630 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 5228e706f1..86a53c078e 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 a854b669d3..17f22e52aa 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 ba865e9f82..3c26f0ae68 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 a854b669d3..17f22e52aa 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 9a649bda6a..ac62f6b7ba 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 86a10df2a0..a2f85b09f6 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 16211b7eab..6d41a6d35c 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 9fb63f5f43..9f8b7815b5 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 7277888358..4526e12ac6 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 1b171c5e31..eda39ac58d 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 0ec849f5b5..f1a61afdcc 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 997352cd0c..83fbfc5cc6 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 397ef687e9..dc9062ced6 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 41669f2114..0d70ca23dd 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 7c1e4808a6..7d9e81edc2 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 3a36b83bda..80e43fd6a2 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 371655a94e..f5544f6f6a 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 ecd1451ea2..15d803a8c0 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 2baeb52494..6bee4f878d 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 9b14da6c81..ec06f40e9d 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 dd49610f89..accb4633f3 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 1484261aed..8ee85aff93 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 440ec9c545..9ec0276a09 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 fd45b948ff..be05cd4e5c 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 f3c87b2318..ffdfd17716 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 cd6be13738..8c60c591aa 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 bb3620adae..2bf1925f37 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 bb3620adae..2bf1925f37 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 6c29346470..a49954cc35 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 b7851227d7..4c33dad4db 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 cdbf407ca5..0f9a28b2b5 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 192041b425..8bea0ff390 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 7828cf1bff..0f7cc89975 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 f0b34f9840..2099428db9 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-$(CONFIG_MAINBOARD_USE_LIBGFXINIT) += gma-mainboard.ads
diff --git a/src/mainboard/hp/compaq_elite_8300_usdt/Makefile.inc b/src/mainboard/hp/compaq_elite_8300_usdt/Makefile.inc
index 18391d8b18..fb492d3583 100644
--- a/src/mainboard/hp/compaq_elite_8300_usdt/Makefile.inc
+++ b/src/mainboard/hp/compaq_elite_8300_usdt/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
bootblock-y += early_init.c
bootblock-y += gpio.c
romstage-y += early_init.c
diff --git a/src/mainboard/hp/folio_9480m/Makefile.inc b/src/mainboard/hp/folio_9480m/Makefile.inc
index ebe01aea99..6f4727ab81 100644
--- a/src/mainboard/hp/folio_9480m/Makefile.inc
+++ b/src/mainboard/hp/folio_9480m/Makefile.inc
@@ -1,2 +1,4 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
romstage-y += gpio.c
ramstage-$(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 00426a88b9..69ef08873b 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 992c3736a7..ad8a084da8 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 0688aa1973..4c7a7beee1 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 8501868fbf..d604d021c5 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 0688aa1973..4c7a7beee1 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 3da456e436..bf162bb01e 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 0ad298b5f4..476f28f18c 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 f87689b8a1..e546b9d6a5 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 a34f3f31c7..95250e28a6 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 08aa2ddde7..f8c155e4c3 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 4100476891..de8c51494d 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 18391d8b18..fb492d3583 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 72247b2341..965a6f86ff 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 d2d344c5e0..b0d35e84bc 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 c3077e7c7e..ec5b26252a 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 3e9bf68af5..a90af2962b 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 7619419f67..ecb6ef2217 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 a34f3f31c7..95250e28a6 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 e402ffa605..e4b6fbf0f0 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 7fbab00337..2a21e03146 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 c291d45ebd..5d3bcc436e 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 4b48156a52..f0aa6b19f3 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 d1300f8f67..3861ea195d 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 f3c87b2318..ffdfd17716 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 31bb642edf..073d8b2e90 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 e402ffa605..e4b6fbf0f0 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 4100476891..de8c51494d 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 d9a8d18d0d..54643607ce 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 2fa05da9ac..10bd6bcb88 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 124e3806ff..e179201c9c 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 e553581dd5..be05cd4e5c 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 3629aca053..dff9c79c88 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 152b46ece1..f2a034c8c8 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 152b46ece1..f2a034c8c8 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 e26339c548..621ffd13fa 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 3629aca053..dff9c79c88 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 152b46ece1..f2a034c8c8 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 ecab3ccc33..af6f16c3ec 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 3465dfeca6..c83c7f3618 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 fedde68c13..09424595d7 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/$(MAINBOARDDIR)/include
bootblock-y += bootblock.c
diff --git a/src/mainboard/system76/adl/Makefile.inc b/src/mainboard/system76/adl/Makefile.inc
index 9dea9f3b1f..c5334f1f0c 100644
--- a/src/mainboard/system76/adl/Makefile.inc
+++ b/src/mainboard/system76/adl/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
CPPFLAGS_common += -I$(src)/mainboard/$(MAINBOARDDIR)/include
bootblock-y += bootblock.c
diff --git a/src/mainboard/system76/bonw14/Makefile.inc b/src/mainboard/system76/bonw14/Makefile.inc
index a866021880..2efcac5f42 100644
--- a/src/mainboard/system76/bonw14/Makefile.inc
+++ b/src/mainboard/system76/bonw14/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
CPPFLAGS_common += -I$(src)/mainboard/$(MAINBOARDDIR)/include
bootblock-y += bootblock.c
diff --git a/src/mainboard/system76/cml-u/Makefile.inc b/src/mainboard/system76/cml-u/Makefile.inc
index 51ad54367e..921112cee9 100644
--- a/src/mainboard/system76/cml-u/Makefile.inc
+++ b/src/mainboard/system76/cml-u/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
CPPFLAGS_common += -I$(src)/mainboard/$(MAINBOARDDIR)/include
bootblock-y += bootblock.c
diff --git a/src/mainboard/system76/gaze15/Makefile.inc b/src/mainboard/system76/gaze15/Makefile.inc
index 32a409992f..72f13667d3 100644
--- a/src/mainboard/system76/gaze15/Makefile.inc
+++ b/src/mainboard/system76/gaze15/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
CPPFLAGS_common += -I$(src)/mainboard/$(MAINBOARDDIR)/include
bootblock-y += bootblock.c
diff --git a/src/mainboard/system76/kbl-u/Makefile.inc b/src/mainboard/system76/kbl-u/Makefile.inc
index d749e412cc..bf3828de96 100644
--- a/src/mainboard/system76/kbl-u/Makefile.inc
+++ b/src/mainboard/system76/kbl-u/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
CPPFLAGS_common += -I$(src)/mainboard/$(MAINBOARDDIR)/include
bootblock-y += bootblock.c
diff --git a/src/mainboard/system76/oryp5/Makefile.inc b/src/mainboard/system76/oryp5/Makefile.inc
index 7c0701e97c..e52cccafc8 100644
--- a/src/mainboard/system76/oryp5/Makefile.inc
+++ b/src/mainboard/system76/oryp5/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
CPPFLAGS_common += -I$(src)/mainboard/$(MAINBOARDDIR)/include
bootblock-y += bootblock.c
diff --git a/src/mainboard/system76/oryp6/Makefile.inc b/src/mainboard/system76/oryp6/Makefile.inc
index 2267eb6f9f..ab8e965d87 100644
--- a/src/mainboard/system76/oryp6/Makefile.inc
+++ b/src/mainboard/system76/oryp6/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
CPPFLAGS_common += -I$(src)/mainboard/$(MAINBOARDDIR)/include
bootblock-y += bootblock.c
diff --git a/src/mainboard/system76/tgl-u/Makefile.inc b/src/mainboard/system76/tgl-u/Makefile.inc
index ca14835be7..28ada02313 100644
--- a/src/mainboard/system76/tgl-u/Makefile.inc
+++ b/src/mainboard/system76/tgl-u/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
CPPFLAGS_common += -I$(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 d749e412cc..bf3828de96 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 af2508e8cf..68ddfca420 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