diff --git a/src/arm/am335x-bone-emmc-in-reset.dtsi b/src/arm/am335x-bone-emmc-in-reset.dtsi
index 7d8f673229c0e203f72181626b626c69de72a450..1427e31b3f929d33469cf78f08c8e91a65e5b273 100644
--- a/src/arm/am335x-bone-emmc-in-reset.dtsi
+++ b/src/arm/am335x-bone-emmc-in-reset.dtsi
@@ -1,9 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
- * 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 version 2 as
- * published by the Free Software Foundation.
+ * Copyright (C) 2012 Texas Instruments Incorporated - https://www.ti.com/
  */
 
 /* standard */
diff --git a/src/arm/am335x-bone-pinmux-can1.dtsi b/src/arm/am335x-bone-pinmux-can1.dtsi
index 9e264132cc46a01eef0b2363e9844f219a37fdbf..4d6c8e221e9b9e698749965bf98eb61ac23aa995 100644
--- a/src/arm/am335x-bone-pinmux-can1.dtsi
+++ b/src/arm/am335x-bone-pinmux-can1.dtsi
@@ -1,9 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
- * 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 version 2 as
- * published by the Free Software Foundation.
+ * Copyright (C) 2012 Texas Instruments Incorporated - https://www.ti.com/
  */
 
 #include <dt-bindings/board/am335x-bbw-bbb-base.h>
diff --git a/src/arm/am335x-bone-pinmux-emmc.dtsi b/src/arm/am335x-bone-pinmux-emmc.dtsi
index 22cf4621b35722738469b3f593138affa51abba3..1011c21983f1db287a0e2f0899f7c9b5b840d0f6 100644
--- a/src/arm/am335x-bone-pinmux-emmc.dtsi
+++ b/src/arm/am335x-bone-pinmux-emmc.dtsi
@@ -1,9 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
- * 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 version 2 as
- * published by the Free Software Foundation.
+ * Copyright (C) 2012 Texas Instruments Incorporated - https://www.ti.com/
  */
 
 /* Testing */
diff --git a/src/arm/am335x-bone-pinmux-i2c2.dtsi b/src/arm/am335x-bone-pinmux-i2c2.dtsi
index abf3b57522e3f49a1389fc33d94a2cfddcffb9f4..791a2a7a91cb366f8b6be511ad4a75f6ed512494 100644
--- a/src/arm/am335x-bone-pinmux-i2c2.dtsi
+++ b/src/arm/am335x-bone-pinmux-i2c2.dtsi
@@ -1,9 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
- * 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 version 2 as
- * published by the Free Software Foundation.
+ * Copyright (C) 2012 Texas Instruments Incorporated - https://www.ti.com/
  */
 
 #include <dt-bindings/board/am335x-bbw-bbb-base.h>
diff --git a/src/arm/am335x-bone-pinmux-nxp-hdmi.dtsi b/src/arm/am335x-bone-pinmux-nxp-hdmi.dtsi
index 5205fa0f9a95994b4a20b6b7e02c720a88be0e99..35adedec8eb1c7e07c11f9cb63cd3d02f16d9ad4 100644
--- a/src/arm/am335x-bone-pinmux-nxp-hdmi.dtsi
+++ b/src/arm/am335x-bone-pinmux-nxp-hdmi.dtsi
@@ -1,9 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
- * 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 version 2 as
- * published by the Free Software Foundation.
+ * Copyright (C) 2012 Texas Instruments Incorporated - https://www.ti.com/
  */
 
 #include "am335x-peripheral-nxp-hdmi.dtsi"
diff --git a/src/arm/am335x-bone-pinmux-spi0.dtsi b/src/arm/am335x-bone-pinmux-spi0.dtsi
index 354e66ad4f0449e28bae69adccfd0130c39b26be..4ee382bc5bf169619a7b6b1100319aeccf8985ef 100644
--- a/src/arm/am335x-bone-pinmux-spi0.dtsi
+++ b/src/arm/am335x-bone-pinmux-spi0.dtsi
@@ -1,9 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
- * 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 version 2 as
- * published by the Free Software Foundation.
+ * Copyright (C) 2012 Texas Instruments Incorporated - https://www.ti.com/
  */
 
 #include <dt-bindings/board/am335x-bbw-bbb-base.h>
diff --git a/src/arm/am335x-bone-pinmux-spi1.dtsi b/src/arm/am335x-bone-pinmux-spi1.dtsi
index bff7f8dae8399b03f70bb97a2e663168c06eb836..0396c3997a6c0579491462d12fa4631ab75c83d6 100644
--- a/src/arm/am335x-bone-pinmux-spi1.dtsi
+++ b/src/arm/am335x-bone-pinmux-spi1.dtsi
@@ -1,9 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
- * 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 version 2 as
- * published by the Free Software Foundation.
+ * Copyright (C) 2012 Texas Instruments Incorporated - https://www.ti.com/
  */
 
 #include <dt-bindings/board/am335x-bbw-bbb-base.h>
diff --git a/src/arm/am335x-bone-pinmux-spi1a.dtsi b/src/arm/am335x-bone-pinmux-spi1a.dtsi
index 62874c892ff78835ca3274041ee6ab156da70e6c..6bd30e69db644b798f53cb2c74b591064b56a8e7 100644
--- a/src/arm/am335x-bone-pinmux-spi1a.dtsi
+++ b/src/arm/am335x-bone-pinmux-spi1a.dtsi
@@ -1,9 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
- * 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 version 2 as
- * published by the Free Software Foundation.
+ * Copyright (C) 2012 Texas Instruments Incorporated - https://www.ti.com/
  */
 
 #include <dt-bindings/board/am335x-bbw-bbb-base.h>
diff --git a/src/arm/am335x-bone-pinmux-ttyS5.dtsi b/src/arm/am335x-bone-pinmux-ttyS5.dtsi
index 01d0aec1de4479b8e9abdacabd80aaee41ccf4f1..b63e29d8a4826eb75c660ea29a6ec0563680e2ea 100644
--- a/src/arm/am335x-bone-pinmux-ttyS5.dtsi
+++ b/src/arm/am335x-bone-pinmux-ttyS5.dtsi
@@ -1,9 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
- * 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 version 2 as
- * published by the Free Software Foundation.
+ * Copyright (C) 2012 Texas Instruments Incorporated - https://www.ti.com/
  */
 
 /* Testing */
diff --git a/src/arm/am335x-cape-rtc-ds1307.dtsi b/src/arm/am335x-cape-rtc-ds1307.dtsi
index bce6ac50cd89abba4b403dabd5fa7ebed77c46a5..789994b8480161b6adfb2aff215250da9787f228 100644
--- a/src/arm/am335x-cape-rtc-ds1307.dtsi
+++ b/src/arm/am335x-cape-rtc-ds1307.dtsi
@@ -1,9 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
- * 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 version 2 as
- * published by the Free Software Foundation.
+ * Copyright (C) 2012 Texas Instruments Incorporated - https://www.ti.com/
  */
 
 #include <dt-bindings/board/am335x-bbw-bbb-base.h>
diff --git a/src/arm/am335x-peripheral-can1.dtsi b/src/arm/am335x-peripheral-can1.dtsi
index 02b5bd17066eb9e8833175d4efd75235cf1a0fb8..1086062b5d3df7ec4c4af80cf343b2bf892e4c95 100644
--- a/src/arm/am335x-peripheral-can1.dtsi
+++ b/src/arm/am335x-peripheral-can1.dtsi
@@ -1,9 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
- * 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 version 2 as
- * published by the Free Software Foundation.
+ * Copyright (C) 2012 Texas Instruments Incorporated - https://www.ti.com/
  */
 
 &dcan1 {
diff --git a/src/arm/am335x-peripheral-emmc.dtsi b/src/arm/am335x-peripheral-emmc.dtsi
index 603f34ec6dc47f3cacdf80c207d782a96749ec1c..d9e79dc315cd23f5d5fb65c2f4c0c1ee5a0c3222 100644
--- a/src/arm/am335x-peripheral-emmc.dtsi
+++ b/src/arm/am335x-peripheral-emmc.dtsi
@@ -1,9 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
- * 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 version 2 as
- * published by the Free Software Foundation.
+ * Copyright (C) 2012 Texas Instruments Incorporated - https://www.ti.com/
  */
 
 &mmc2 {
diff --git a/src/arm/am335x-peripheral-i2c2.dtsi b/src/arm/am335x-peripheral-i2c2.dtsi
index ed9a0b52f9135979f5132060dcecca243f0227aa..2385d21295d3ad964a1fb844a4b575f6191f750d 100644
--- a/src/arm/am335x-peripheral-i2c2.dtsi
+++ b/src/arm/am335x-peripheral-i2c2.dtsi
@@ -1,9 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
- * 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 version 2 as
- * published by the Free Software Foundation.
+ * Copyright (C) 2012 Texas Instruments Incorporated - https://www.ti.com/
  */
 
 &i2c2 {
diff --git a/src/arm/am335x-peripheral-nxp-hdmi.dtsi b/src/arm/am335x-peripheral-nxp-hdmi.dtsi
index 1dfd26a691a6d8eb1023fe54736c3e51713b6774..25d67fa605b098445d03238903dab1db8ce9756e 100644
--- a/src/arm/am335x-peripheral-nxp-hdmi.dtsi
+++ b/src/arm/am335x-peripheral-nxp-hdmi.dtsi
@@ -1,9 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
- * 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 version 2 as
- * published by the Free Software Foundation.
+ * Copyright (C) 2012 Texas Instruments Incorporated - https://www.ti.com/
  */
 
 &lcdc {
diff --git a/src/arm/am335x-peripheral-spi0.dtsi b/src/arm/am335x-peripheral-spi0.dtsi
index 969e35259979c11f5b759e46b6c85cd07f95eaef..1bcd7aa1aff3dd09d232bab69c60cf9db79a281e 100644
--- a/src/arm/am335x-peripheral-spi0.dtsi
+++ b/src/arm/am335x-peripheral-spi0.dtsi
@@ -1,9 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
- * 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 version 2 as
- * published by the Free Software Foundation.
+ * Copyright (C) 2012 Texas Instruments Incorporated - https://www.ti.com/
  */
 
 &spi0 {
diff --git a/src/arm/am335x-peripheral-spi1.dtsi b/src/arm/am335x-peripheral-spi1.dtsi
index ac5fe97b65d99d9f672edfeb502a90d4c424731a..825249cde7048fff2a152396209c75eafc935f0d 100644
--- a/src/arm/am335x-peripheral-spi1.dtsi
+++ b/src/arm/am335x-peripheral-spi1.dtsi
@@ -1,9 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
- * 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 version 2 as
- * published by the Free Software Foundation.
+ * Copyright (C) 2012 Texas Instruments Incorporated - https://www.ti.com/
  */
 
 &spi1 {
diff --git a/src/arm/am335x-peripheral-spi1a.dtsi b/src/arm/am335x-peripheral-spi1a.dtsi
index ac5fe97b65d99d9f672edfeb502a90d4c424731a..825249cde7048fff2a152396209c75eafc935f0d 100644
--- a/src/arm/am335x-peripheral-spi1a.dtsi
+++ b/src/arm/am335x-peripheral-spi1a.dtsi
@@ -1,9 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
- * 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 version 2 as
- * published by the Free Software Foundation.
+ * Copyright (C) 2012 Texas Instruments Incorporated - https://www.ti.com/
  */
 
 &spi1 {
diff --git a/src/arm/am335x-peripheral-ttyS5.dtsi b/src/arm/am335x-peripheral-ttyS5.dtsi
index 8b42fb02b9b4a0fe1af8ae643ee133c8e7b39019..808f01d707092ffc9cc95c5085aabb0605224f51 100644
--- a/src/arm/am335x-peripheral-ttyS5.dtsi
+++ b/src/arm/am335x-peripheral-ttyS5.dtsi
@@ -1,9 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
- * 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 version 2 as
- * published by the Free Software Foundation.
+ * Copyright (C) 2012 Texas Instruments Incorporated - https://www.ti.com/
  */
 
 &uart5 {