diff --git a/fdts/fvp-base-gicv2-psci-aarch32.dts b/fdts/fvp-base-gicv2-psci-aarch32.dts
index 957aea5..3a921f4 100644
--- a/fdts/fvp-base-gicv2-psci-aarch32.dts
+++ b/fdts/fvp-base-gicv2-psci-aarch32.dts
@@ -11,8 +11,8 @@
 #define	AFF
 #define	REG_32
 
-#include "fvp-defs.dtsi"
 #include <dt-bindings/interrupt-controller/arm-gic.h>
+#include "fvp-defs.dtsi"
 
 /memreserve/ 0x80000000 0x00010000;
 
diff --git a/fdts/fvp-base-gicv2-psci.dts b/fdts/fvp-base-gicv2-psci.dts
index f0c71b4..e99719e 100644
--- a/fdts/fvp-base-gicv2-psci.dts
+++ b/fdts/fvp-base-gicv2-psci.dts
@@ -10,8 +10,8 @@
 
 #define	AFF
 
-#include "fvp-defs.dtsi"
 #include <dt-bindings/interrupt-controller/arm-gic.h>
+#include "fvp-defs.dtsi"
 
 /memreserve/ 0x80000000 0x00010000;
 
diff --git a/fdts/fvp-base-gicv3-psci-common.dtsi b/fdts/fvp-base-gicv3-psci-common.dtsi
index 0ef9273..b6753de 100644
--- a/fdts/fvp-base-gicv3-psci-common.dtsi
+++ b/fdts/fvp-base-gicv3-psci-common.dtsi
@@ -4,8 +4,8 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#include <services/sdei_flags.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <services/sdei_flags.h>
 
 #define LEVEL	0
 #define EDGE	2
diff --git a/fdts/fvp-foundation-gicv2-psci.dts b/fdts/fvp-foundation-gicv2-psci.dts
index 7dd9afd..5a82c46 100644
--- a/fdts/fvp-foundation-gicv2-psci.dts
+++ b/fdts/fvp-foundation-gicv2-psci.dts
@@ -11,8 +11,8 @@
 #define	AFF
 #define	CLUSTER_COUNT	1
 
-#include "fvp-defs.dtsi"
 #include <dt-bindings/interrupt-controller/arm-gic.h>
+#include "fvp-defs.dtsi"
 
 /memreserve/ 0x80000000 0x00010000;
 
diff --git a/fdts/fvp-foundation-gicv3-psci.dts b/fdts/fvp-foundation-gicv3-psci.dts
index 0b265ad..e1249d4 100644
--- a/fdts/fvp-foundation-gicv3-psci.dts
+++ b/fdts/fvp-foundation-gicv3-psci.dts
@@ -11,8 +11,8 @@
 #define	AFF
 #define	CLUSTER_COUNT	1
 
-#include "fvp-defs.dtsi"
 #include <dt-bindings/interrupt-controller/arm-gic.h>
+#include "fvp-defs.dtsi"
 
 /memreserve/ 0x80000000 0x00010000;
 
diff --git a/include/dt-bindings/interrupt-controller/arm-gic.h b/include/dt-bindings/interrupt-controller/arm-gic.h
index a3923f0..fbe07da 100644
--- a/include/dt-bindings/interrupt-controller/arm-gic.h
+++ b/include/dt-bindings/interrupt-controller/arm-gic.h
@@ -1,6 +1,8 @@
-/* SPDX-License-Identifier: MIT */
-
 /*
+ * Copyright (c) 2019-2021, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: MIT
+ *
  * This header provides constants for the ARM GIC.
  */