8 files changed, 16 insertions, 0 deletions
diff --git a/src/drivers/intel/dptf/Makefile.inc b/src/drivers/intel/dptf/Makefile.inc
index 42607f8a54..41f4158722 100644
--- a/src/drivers/intel/dptf/Makefile.inc
+++ b/src/drivers/intel/dptf/Makefile.inc
@@ -1 +1,3 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 ramstage-$(CONFIG_DRIVERS_INTEL_DPTF) += dptf.c
diff --git a/src/drivers/intel/ish/Makefile.inc b/src/drivers/intel/ish/Makefile.inc
index cab2b1d804..dfa4b1c444 100644
--- a/src/drivers/intel/ish/Makefile.inc
+++ b/src/drivers/intel/ish/Makefile.inc
@@ -1 +1,3 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 ramstage-$(CONFIG_DRIVERS_INTEL_ISH) += ish.c
diff --git a/src/drivers/intel/mipi_camera/Makefile.inc b/src/drivers/intel/mipi_camera/Makefile.inc
index 85f67b2606..fca8326307 100644
--- a/src/drivers/intel/mipi_camera/Makefile.inc
+++ b/src/drivers/intel/mipi_camera/Makefile.inc
@@ -1 +1,3 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 ramstage-$(CONFIG_DRIVERS_INTEL_MIPI_CAMERA) += camera.c
diff --git a/src/drivers/intel/pmc_mux/Makefile.inc b/src/drivers/intel/pmc_mux/Makefile.inc
index 61c957e514..f607135dea 100644
--- a/src/drivers/intel/pmc_mux/Makefile.inc
+++ b/src/drivers/intel/pmc_mux/Makefile.inc
@@ -1,2 +1,4 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 subdirs-y += conn
 ramstage-$(CONFIG_DRIVERS_INTEL_PMC) += mux.c
diff --git a/src/drivers/intel/pmc_mux/conn/Makefile.inc b/src/drivers/intel/pmc_mux/conn/Makefile.inc
index babca2f9bb..668351b4df 100644
--- a/src/drivers/intel/pmc_mux/conn/Makefile.inc
+++ b/src/drivers/intel/pmc_mux/conn/Makefile.inc
@@ -1 +1,3 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 ramstage-$(CONFIG_DRIVERS_INTEL_PMC) += conn.c
diff --git a/src/drivers/intel/ptt/Makefile.inc b/src/drivers/intel/ptt/Makefile.inc
index fdecc89b9f..bab1789fd9 100644
--- a/src/drivers/intel/ptt/Makefile.inc
+++ b/src/drivers/intel/ptt/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 romstage-$(CONFIG_HAVE_INTEL_PTT) += ptt.c
 ramstage-$(CONFIG_HAVE_INTEL_PTT) += ptt.c
 postcar-$(CONFIG_HAVE_INTEL_PTT) += ptt.c
diff --git a/src/drivers/intel/soundwire/Makefile.inc b/src/drivers/intel/soundwire/Makefile.inc
index 1f6773ec26..044e2ab8e9 100644
--- a/src/drivers/intel/soundwire/Makefile.inc
+++ b/src/drivers/intel/soundwire/Makefile.inc
@@ -1 +1,3 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 ramstage-$(CONFIG_DRIVERS_INTEL_SOUNDWIRE) += soundwire.c
diff --git a/src/drivers/intel/usb4/retimer/Makefile.inc b/src/drivers/intel/usb4/retimer/Makefile.inc
index bca23aa3bf..1c814850bd 100644
--- a/src/drivers/intel/usb4/retimer/Makefile.inc
+++ b/src/drivers/intel/usb4/retimer/Makefile.inc
@@ -1 +1,3 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 ramstage-$(CONFIG_DRIVERS_INTEL_USB4_RETIMER) += retimer.c