diff --git a/arch/arm/dts/da850-evm.dts b/arch/arm/dts/da850-evm.dts
index b331cef..7e865bb 100644
--- a/arch/arm/dts/da850-evm.dts
+++ b/arch/arm/dts/da850-evm.dts
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Device Tree for DA850 EVM board
  *
- * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation, version 2.
+ * Copyright (C) 2012 Texas Instruments Incorporated - https://www.ti.com/
  */
 /dts-v1/;
 #include "da850.dtsi"
diff --git a/arch/arm/dts/da850-lcdk.dts b/arch/arm/dts/da850-lcdk.dts
index db8ae56..9c8e9f0 100644
--- a/arch/arm/dts/da850-lcdk.dts
+++ b/arch/arm/dts/da850-lcdk.dts
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (c) 2016 BayLibre, Inc.
- *
- * Licensed under GPLv2.
  */
 /dts-v1/;
 #include "da850.dtsi"
diff --git a/arch/arm/dts/da850-lego-ev3.dts b/arch/arm/dts/da850-lego-ev3.dts
index e281d03..6d781d5 100644
--- a/arch/arm/dts/da850-lego-ev3.dts
+++ b/arch/arm/dts/da850-lego-ev3.dts
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Device tree for LEGO MINDSTORMS EV3
  *
  * Copyright (C) 2017 David Lechner <david@lechnology.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
- *
- * This is an absolute minimum device tree instead of using the one from Linux
- * because the bootloader on the EV3 is limited to 256k. This saves us >10k.
  */
 
 /dts-v1/;
diff --git a/arch/arm/dts/da850.dtsi b/arch/arm/dts/da850.dtsi
index 559659b..e6e78b8 100644
--- a/arch/arm/dts/da850.dtsi
+++ b/arch/arm/dts/da850.dtsi
@@ -1,11 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * Copyright 2012 DENX Software Engineering GmbH
  * Heiko Schocher <hs@denx.de>
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
  */
 #include <dt-bindings/interrupt-controller/irq.h>
 
diff --git a/arch/arm/dts/dm8168-evm.dts b/arch/arm/dts/dm8168-evm.dts
index 0bf55fa..2a457c9 100644
--- a/arch/arm/dts/dm8168-evm.dts
+++ b/arch/arm/dts/dm8168-evm.dts
@@ -1,8 +1,4 @@
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
+// SPDX-License-Identifier: GPL-2.0-only
 /dts-v1/;
 
 #include "dm816x.dtsi"
diff --git a/arch/arm/dts/dm816x-clocks.dtsi b/arch/arm/dts/dm816x-clocks.dtsi
index 51865eb..f7a839d 100644
--- a/arch/arm/dts/dm816x-clocks.dtsi
+++ b/arch/arm/dts/dm816x-clocks.dtsi
@@ -1,8 +1,4 @@
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
+// SPDX-License-Identifier: GPL-2.0-only
 
 &scrm {
 	main_fapll: main_fapll {
diff --git a/arch/arm/dts/dm816x.dtsi b/arch/arm/dts/dm816x.dtsi
index fe58faf..ae2d938 100644
--- a/arch/arm/dts/dm816x.dtsi
+++ b/arch/arm/dts/dm816x.dtsi
@@ -1,8 +1,4 @@
-/*
- * This file is licensed under the terms of the GNU General Public License
- * version 2.  This program is licensed "as is" without any warranty of any
- * kind, whether express or implied.
- */
+// SPDX-License-Identifier: GPL-2.0-only
 
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/pinctrl/omap.h>