diff --git a/arch/arm/boot/dts/imx6dl-udoo.dts b/arch/arm/boot/dts/imx6dl-udoo.dts
index e3713f00e81914957e21a59b0ff23c2243858a08..d871cac1711f7ed9f974fa5e0c079f1fd565f1d5 100644
--- a/arch/arm/boot/dts/imx6dl-udoo.dts
+++ b/arch/arm/boot/dts/imx6dl-udoo.dts
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright 2013 Freescale Semiconductor, Inc.
  *
  * Author: Fabio Estevam <fabio.estevam@freescale.com>
- *
- * 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.
- *
  */
 /dts-v1/;
 #include "imx6dl.dtsi"
diff --git a/arch/arm/boot/dts/imx6q-udoo.dts b/arch/arm/boot/dts/imx6q-udoo.dts
index c3e64ff3d544655f22650cf8c4ab3b023a9dbe02..52e9f4a211d08f6f1e90c3b62907e61f2783c5d0 100644
--- a/arch/arm/boot/dts/imx6q-udoo.dts
+++ b/arch/arm/boot/dts/imx6q-udoo.dts
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright 2013 Freescale Semiconductor, Inc.
  *
  * Author: Fabio Estevam <fabio.estevam@freescale.com>
- *
- * 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.
- *
  */
 /dts-v1/;
 #include "imx6q.dtsi"
diff --git a/arch/arm/boot/dts/imx6qdl-udoo.dtsi b/arch/arm/boot/dts/imx6qdl-udoo.dtsi
index 906387915dc5ee71ea2007cba5405f0925ded71d..4f27861bbb32405cae88e134177223a2de60165f 100644
--- a/arch/arm/boot/dts/imx6qdl-udoo.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-udoo.dtsi
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright 2013 Freescale Semiconductor, Inc.
  *
  * Author: Fabio Estevam <fabio.estevam@freescale.com>
- *
- * 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.
- *
  */
 
 / {