4 files changed, 8 insertions, 0 deletions
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