8 files changed, 15 insertions, 0 deletions
diff --git a/src/security/Makefile.inc b/src/security/Makefile.inc
index 72b87dbe73..b7922d41d5 100644
--- a/src/security/Makefile.inc
+++ b/src/security/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 subdirs-y += vboot
 subdirs-y += tpm
 subdirs-y += memory
diff --git a/src/security/intel/Makefile.inc b/src/security/intel/Makefile.inc
index 20aea273e0..25e28ed869 100644
--- a/src/security/intel/Makefile.inc
+++ b/src/security/intel/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 subdirs-y += txt
 subdirs-y += stm
 subdirs-y += cbnt
diff --git a/src/security/intel/cbnt/Makefile.inc b/src/security/intel/cbnt/Makefile.inc
index 4c585b8664..e166634351 100644
--- a/src/security/intel/cbnt/Makefile.inc
+++ b/src/security/intel/cbnt/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 ifeq ($(CONFIG_INTEL_CBNT_SUPPORT),y)
 
 all-y += logging.c
diff --git a/src/security/intel/stm/Makefile.inc b/src/security/intel/stm/Makefile.inc
index d4da605bd7..90b7c188f7 100644
--- a/src/security/intel/stm/Makefile.inc
+++ b/src/security/intel/stm/Makefile.inc
@@ -1,3 +1,4 @@
+## SPDX-License-Identifier: GPL-2.0-only
 
 # put the stm where it can be found
 
diff --git a/src/security/intel/txt/Makefile.inc b/src/security/intel/txt/Makefile.inc
index e19bacfbf5..c1fc0c4527 100644
--- a/src/security/intel/txt/Makefile.inc
+++ b/src/security/intel/txt/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 romstage-$(CONFIG_INTEL_TXT_LIB) += txtlib.c
 
 ifeq ($(CONFIG_INTEL_TXT),y)
diff --git a/src/security/memory/Makefile.inc b/src/security/memory/Makefile.inc
index 0882ca3660..4f07bbbcb4 100644
--- a/src/security/memory/Makefile.inc
+++ b/src/security/memory/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 romstage-$(CONFIG_PLATFORM_HAS_DRAM_CLEAR) += memory.c
 postcar-$(CONFIG_PLATFORM_HAS_DRAM_CLEAR) += memory.c
 ramstage-$(CONFIG_PLATFORM_HAS_DRAM_CLEAR) += memory.c
diff --git a/src/security/tpm/Makefile.inc b/src/security/tpm/Makefile.inc
index ae06cb0ea6..ade9656940 100644
--- a/src/security/tpm/Makefile.inc
+++ b/src/security/tpm/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 subdirs-$(CONFIG_TPM_GOOGLE) += tss/vendor/cr50
 
 ## TSS
diff --git a/src/security/tpm/tss/vendor/cr50/Makefile.inc b/src/security/tpm/tss/vendor/cr50/Makefile.inc
index 8bacafd023..0a16fa1978 100644
--- a/src/security/tpm/tss/vendor/cr50/Makefile.inc
+++ b/src/security/tpm/tss/vendor/cr50/Makefile.inc
@@ -1,3 +1,5 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
 ramstage-y += cr50.c
 romstage-y += cr50.c
 postcar-y += cr50.c