13 files changed, 13 insertions, 0 deletions
diff --git a/tools/firmware-utils/src/bcm_tag.h b/tools/firmware-utils/src/bcm_tag.h
index 2730edc9ad..a0d560884f 100644
--- a/tools/firmware-utils/src/bcm_tag.h
+++ b/tools/firmware-utils/src/bcm_tag.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 #ifndef __BCM63XX_TAG_H
 #define __BCM63XX_TAG_H
 
diff --git a/tools/firmware-utils/src/bcmalgo.c b/tools/firmware-utils/src/bcmalgo.c
index c0865a183b..fd6c1c116e 100644
--- a/tools/firmware-utils/src/bcmalgo.c
+++ b/tools/firmware-utils/src/bcmalgo.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 #include <stdlib.h>
 #include <sys/types.h>
 #include <stdio.h>
diff --git a/tools/firmware-utils/src/bcmalgo.h b/tools/firmware-utils/src/bcmalgo.h
index 46647cf6d3..9aec7d1931 100644
--- a/tools/firmware-utils/src/bcmalgo.h
+++ b/tools/firmware-utils/src/bcmalgo.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 #ifndef bcmutils_H
 #define bcmutils_H
 
diff --git a/tools/firmware-utils/src/dgfirmware.c b/tools/firmware-utils/src/dgfirmware.c
index 3ec4712ec9..c5549c82be 100644
--- a/tools/firmware-utils/src/dgfirmware.c
+++ b/tools/firmware-utils/src/dgfirmware.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 #include <stdlib.h>
 #include <stdio.h>
 #include <string.h>
diff --git a/tools/firmware-utils/src/hcsmakeimage.c b/tools/firmware-utils/src/hcsmakeimage.c
index 2888810cc7..ce954cfcc9 100644
--- a/tools/firmware-utils/src/hcsmakeimage.c
+++ b/tools/firmware-utils/src/hcsmakeimage.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 #include <stdlib.h>
 #include <sys/types.h>
 #include <stdio.h>
diff --git a/tools/firmware-utils/src/mkdapimg.c b/tools/firmware-utils/src/mkdapimg.c
index 0031d83dd0..e8b12599d8 100644
--- a/tools/firmware-utils/src/mkdapimg.c
+++ b/tools/firmware-utils/src/mkdapimg.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 #include <stdio.h>
 #include <stdint.h>
 #include <stdlib.h>
diff --git a/tools/firmware-utils/src/mksercommfw.c b/tools/firmware-utils/src/mksercommfw.c
index f6f1d93f37..5fa323f2d5 100644
--- a/tools/firmware-utils/src/mksercommfw.c
+++ b/tools/firmware-utils/src/mksercommfw.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
diff --git a/tools/firmware-utils/src/mktitanimg.c b/tools/firmware-utils/src/mktitanimg.c
index acc21bd64d..654a6bd09b 100644
--- a/tools/firmware-utils/src/mktitanimg.c
+++ b/tools/firmware-utils/src/mktitanimg.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
diff --git a/tools/firmware-utils/src/mktitanimg.h b/tools/firmware-utils/src/mktitanimg.h
index 9ff30f6088..27b37b3fda 100644
--- a/tools/firmware-utils/src/mktitanimg.h
+++ b/tools/firmware-utils/src/mktitanimg.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 #ifndef __MKTITANIMG_H
 #define __MKTITANIMG_H
 
diff --git a/tools/firmware-utils/src/srec2bin.c b/tools/firmware-utils/src/srec2bin.c
index 95a8195d1a..ad4222d693 100644
--- a/tools/firmware-utils/src/srec2bin.c
+++ b/tools/firmware-utils/src/srec2bin.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 #include <stdio.h>
 #include <ctype.h>
 #include <string.h>
diff --git a/tools/firmware-utils/src/trx2edips.c b/tools/firmware-utils/src/trx2edips.c
index 14c4eb70ba..e8ac14d830 100644
--- a/tools/firmware-utils/src/trx2edips.c
+++ b/tools/firmware-utils/src/trx2edips.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 #include <stdio.h>
 #include <stdlib.h>
 #include <stddef.h>
diff --git a/tools/firmware-utils/src/utils.h b/tools/firmware-utils/src/utils.h
index 11ec740069..b051f5e6c7 100644
--- a/tools/firmware-utils/src/utils.h
+++ b/tools/firmware-utils/src/utils.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 #include <stdint.h>
 #include <string.h>
 
diff --git a/tools/firmware-utils/src/wrt400n.c b/tools/firmware-utils/src/wrt400n.c
index 1cf1debc89..a6c1f8038b 100644
--- a/tools/firmware-utils/src/wrt400n.c
+++ b/tools/firmware-utils/src/wrt400n.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * WRT400n - Firmware Generation Creator
  *