target: use SPDX license identifiers on Makefiles

Use SPDX license tags to allow machines to check licenses.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

7 files changed, 9 insertions, 28 deletions

diff --git a/target/linux/layerscape/Makefile b/target/linux/layerscape/Makefile
index 9030747823..71034224ab 100644
--- a/target/linux/layerscape/Makefile
+++ b/target/linux/layerscape/Makefile
@@ -1,9 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0-only
 #
 # Copyright (C) 2016 Jiang Yutang <jiangyutang1978@gmail.com>
-#
-# This is free software, licensed under the GNU General Public License v2.
-# See /LICENSE for more information.
-#
+
 include $(TOPDIR)/rules.mk
 
 BOARD:=layerscape
diff --git a/target/linux/layerscape/armv7/target.mk b/target/linux/layerscape/armv7/target.mk
index bfc6c09d42..1730ca5637 100644
--- a/target/linux/layerscape/armv7/target.mk
+++ b/target/linux/layerscape/armv7/target.mk
@@ -1,9 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0-only
 #
 # Copyright 2018 NXP
-#
-# This is free software, licensed under the GNU General Public License v2.
-# See /LICENSE for more information.
-#
 
 ARCH:=arm
 BOARDNAME:=ARMv7 based boards
diff --git a/target/linux/layerscape/armv8_64b/target.mk b/target/linux/layerscape/armv8_64b/target.mk
index 274a729440..c9a61701a9 100644
--- a/target/linux/layerscape/armv8_64b/target.mk
+++ b/target/linux/layerscape/armv8_64b/target.mk
@@ -1,9 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0-only
 #
 # Copyright (C) 2016 Jiang Yutang <jiangyutang1978@gmail.com>
-#
-# This is free software, licensed under the GNU General Public License v2.
-# See /LICENSE for more information.
-#
 
 ARCH:=aarch64
 BOARDNAME:=ARMv8 64-bit based boards
diff --git a/target/linux/layerscape/image/Makefile b/target/linux/layerscape/image/Makefile
index bfc4af4ca4..3c8bdea480 100644
--- a/target/linux/layerscape/image/Makefile
+++ b/target/linux/layerscape/image/Makefile
@@ -1,9 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0-only
 #
 # Copyright (C) 2016 Jiang Yutang <jiangyutang1978@gmail.com>
-#
-# This is free software, licensed under the GNU General Public License v2.
-# See /LICENSE for more information.
-#
+
 include $(TOPDIR)/rules.mk
 include $(INCLUDE_DIR)/image.mk
 
diff --git a/target/linux/layerscape/image/armv7.mk b/target/linux/layerscape/image/armv7.mk
index 62921a5ef9..4ab2cec224 100644
--- a/target/linux/layerscape/image/armv7.mk
+++ b/target/linux/layerscape/image/armv7.mk
@@ -1,9 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0-only
 #
 # Copyright 2018-2020 NXP
-#
-# This is free software, licensed under the GNU General Public License v2.
-# See /LICENSE for more information.
-#
 
 define Device/Default
   PROFILES := Default
diff --git a/target/linux/layerscape/image/armv8_64b.mk b/target/linux/layerscape/image/armv8_64b.mk
index a3f4428299..75d6885c6d 100644
--- a/target/linux/layerscape/image/armv8_64b.mk
+++ b/target/linux/layerscape/image/armv8_64b.mk
@@ -1,9 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0-only
 #
 # Copyright 2018-2020 NXP
-#
-# This is free software, licensed under the GNU General Public License v2.
-# See /LICENSE for more information.
-#
 
 define Device/Default
   PROFILES := Default
diff --git a/target/linux/layerscape/modules.mk b/target/linux/layerscape/modules.mk
index 4d713b597e..11e75ee749 100644
--- a/target/linux/layerscape/modules.mk
+++ b/target/linux/layerscape/modules.mk
@@ -1,9 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0-only
 #
 # Copyright (C) Jiang Yutang <jiangyutang1978@gmail.com>
-#
-# This is free software, licensed under the GNU General Public License v2.
-# See /LICENSE for more information.
-#
 
 define KernelPackage/ahci-qoriq
   SUBMENU:=$(BLOCK_MENU)