6 files changed, 12 insertions, 0 deletions
diff --git a/src/ec/google/chromeec/Kconfig b/src/ec/google/chromeec/Kconfig
index 1a4dcdb770..fb93b5662e 100644
--- a/src/ec/google/chromeec/Kconfig
+++ b/src/ec/google/chromeec/Kconfig
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 config EC_GOOGLE_CHROMEEC
 	bool
 	select EC_SUPPORTS_DPTF_TEVT
diff --git a/src/ec/google/chromeec/audio_codec/Kconfig b/src/ec/google/chromeec/audio_codec/Kconfig
index 148a7a8d96..0df41b0e7e 100644
--- a/src/ec/google/chromeec/audio_codec/Kconfig
+++ b/src/ec/google/chromeec/audio_codec/Kconfig
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 if EC_GOOGLE_CHROMEEC
 
 config EC_GOOGLE_CHROMEEC_AUDIO_CODEC
diff --git a/src/ec/google/chromeec/i2c_tunnel/Kconfig b/src/ec/google/chromeec/i2c_tunnel/Kconfig
index 232725566b..194c648495 100644
--- a/src/ec/google/chromeec/i2c_tunnel/Kconfig
+++ b/src/ec/google/chromeec/i2c_tunnel/Kconfig
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 if EC_GOOGLE_CHROMEEC
 
 config EC_GOOGLE_CHROMEEC_I2C_TUNNEL
diff --git a/src/ec/google/chromeec/mux/Kconfig b/src/ec/google/chromeec/mux/Kconfig
index 654ff82c88..08e4f82f6e 100644
--- a/src/ec/google/chromeec/mux/Kconfig
+++ b/src/ec/google/chromeec/mux/Kconfig
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 if EC_GOOGLE_CHROMEEC
 
 config EC_GOOGLE_CHROMEEC_MUX
diff --git a/src/ec/google/common/Kconfig b/src/ec/google/common/Kconfig
index 2e138a555f..2005ddbfb9 100644
--- a/src/ec/google/common/Kconfig
+++ b/src/ec/google/common/Kconfig
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 config EC_GOOGLE_COMMON_MEC
 	bool
 	help
diff --git a/src/ec/google/wilco/Kconfig b/src/ec/google/wilco/Kconfig
index f97fa26d01..cc8368e328 100644
--- a/src/ec/google/wilco/Kconfig
+++ b/src/ec/google/wilco/Kconfig
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 config EC_GOOGLE_WILCO
 	bool
 	default n