SPDX: Convert all of our single license tags to Linux Kernel style

When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>

19 files changed, 19 insertions, 42 deletions

diff --git a/arch/mips/mach-ath79/Makefile b/arch/mips/mach-ath79/Makefile
index d7e2666a7c9..7aa40c65d30 100644
--- a/arch/mips/mach-ath79/Makefile
+++ b/arch/mips/mach-ath79/Makefile
@@ -1,6 +1,4 @@
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
+# SPDX-License-Identifier: GPL-2.0+
 
 obj-y += reset.o
 obj-y += cpu.o
diff --git a/arch/mips/mach-ath79/ar933x/Makefile b/arch/mips/mach-ath79/ar933x/Makefile
index fd74f0c2ae5..5ba849c738d 100644
--- a/arch/mips/mach-ath79/ar933x/Makefile
+++ b/arch/mips/mach-ath79/ar933x/Makefile
@@ -1,6 +1,4 @@
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
+# SPDX-License-Identifier: GPL-2.0+
 
 obj-y += clk.o
 obj-y += ddr.o
diff --git a/arch/mips/mach-ath79/ar933x/clk.c b/arch/mips/mach-ath79/ar933x/clk.c
index 6d98efc480d..7c15c215329 100644
--- a/arch/mips/mach-ath79/ar933x/clk.c
+++ b/arch/mips/mach-ath79/ar933x/clk.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2015-2016 Wills Wang <wills.wang@live.com>
- *
- * SPDX-License-Identifier: GPL-2.0+
  */
 
 #include <common.h>
diff --git a/arch/mips/mach-ath79/ar933x/ddr.c b/arch/mips/mach-ath79/ar933x/ddr.c
index eeaf4aec4d7..2cf0b2cb1f9 100644
--- a/arch/mips/mach-ath79/ar933x/ddr.c
+++ b/arch/mips/mach-ath79/ar933x/ddr.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2015-2016 Wills Wang <wills.wang@live.com>
  * Based on Atheros LSDK/QSDK
- *
- * SPDX-License-Identifier: GPL-2.0+
  */
 
 #include <common.h>
diff --git a/arch/mips/mach-ath79/ar933x/lowlevel_init.S b/arch/mips/mach-ath79/ar933x/lowlevel_init.S
index 1b847f5eae3..390d4b3896e 100644
--- a/arch/mips/mach-ath79/ar933x/lowlevel_init.S
+++ b/arch/mips/mach-ath79/ar933x/lowlevel_init.S
@@ -1,8 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (C) 2015-2016 Wills Wang <wills.wang@live.com>
  * Based on Atheros LSDK/QSDK and u-boot_mod project
- *
- * SPDX-License-Identifier: GPL-2.0+
  */
 
 #include <config.h>
diff --git a/arch/mips/mach-ath79/ar934x/Makefile b/arch/mips/mach-ath79/ar934x/Makefile
index 348c65b2533..0beaa9b0afc 100644
--- a/arch/mips/mach-ath79/ar934x/Makefile
+++ b/arch/mips/mach-ath79/ar934x/Makefile
@@ -1,6 +1,4 @@
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
+# SPDX-License-Identifier: GPL-2.0+
 
 obj-y += cpu.o
 obj-y += clk.o
diff --git a/arch/mips/mach-ath79/ar934x/clk.c b/arch/mips/mach-ath79/ar934x/clk.c
index ba2243c9be9..a5dace7a99b 100644
--- a/arch/mips/mach-ath79/ar934x/clk.c
+++ b/arch/mips/mach-ath79/ar934x/clk.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2016 Marek Vasut <marex@denx.de>
- *
- * SPDX-License-Identifier: GPL-2.0+
  */
 
 #include <common.h>
diff --git a/arch/mips/mach-ath79/ar934x/cpu.c b/arch/mips/mach-ath79/ar934x/cpu.c
index 8fcdf657d1e..7daac036714 100644
--- a/arch/mips/mach-ath79/ar934x/cpu.c
+++ b/arch/mips/mach-ath79/ar934x/cpu.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2016 Marek Vasut <marex@denx.de>
- *
- * SPDX-License-Identifier: GPL-2.0+
  */
 
 #include <common.h>
diff --git a/arch/mips/mach-ath79/ar934x/ddr.c b/arch/mips/mach-ath79/ar934x/ddr.c
index 2ba1efa3e3b..289973ec953 100644
--- a/arch/mips/mach-ath79/ar934x/ddr.c
+++ b/arch/mips/mach-ath79/ar934x/ddr.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2016 Marek Vasut <marex@denx.de>
  *
  * Based on RAM init sequence by Piotr Dymacz <pepe2k@gmail.com>
- *
- * SPDX-License-Identifier: GPL-2.0+
  */
 
 #include <common.h>
diff --git a/arch/mips/mach-ath79/cpu.c b/arch/mips/mach-ath79/cpu.c
index 4ef50924789..9afc6726023 100644
--- a/arch/mips/mach-ath79/cpu.c
+++ b/arch/mips/mach-ath79/cpu.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2015-2016 Wills Wang <wills.wang@live.com>
- *
- * SPDX-License-Identifier: GPL-2.0+
  */
 
 #include <common.h>
diff --git a/arch/mips/mach-ath79/dram.c b/arch/mips/mach-ath79/dram.c
index 2706812b918..138a7f84832 100644
--- a/arch/mips/mach-ath79/dram.c
+++ b/arch/mips/mach-ath79/dram.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2015-2016 Wills Wang <wills.wang@live.com>
- *
- * SPDX-License-Identifier: GPL-2.0+
  */
 
 #include <common.h>
diff --git a/arch/mips/mach-ath79/include/mach/ar71xx_regs.h b/arch/mips/mach-ath79/include/mach/ar71xx_regs.h
index 7b4852416b6..5d371bb5828 100644
--- a/arch/mips/mach-ath79/include/mach/ar71xx_regs.h
+++ b/arch/mips/mach-ath79/include/mach/ar71xx_regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Atheros AR71XX/AR724X/AR913X SoC register definitions
  *
@@ -5,8 +6,6 @@
  * Copyright (C) 2010-2011 Jaiganesh Narayanan <jnarayanan@atheros.com>
  * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
  * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
- *
- * SPDX-License-Identifier:     GPL-2.0+
  */
 
 #ifndef __ASM_MACH_AR71XX_REGS_H
diff --git a/arch/mips/mach-ath79/include/mach/ath79.h b/arch/mips/mach-ath79/include/mach/ath79.h
index 582c0282e58..5de7a43f79e 100644
--- a/arch/mips/mach-ath79/include/mach/ath79.h
+++ b/arch/mips/mach-ath79/include/mach/ath79.h
@@ -1,11 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Atheros AR71XX/AR724X/AR913X common definitions
  *
  * Copyright (C) 2015-2016 Wills Wang <wills.wang@live.com>
  * Copyright (C) 2008-2011 Gabor Juhos <juhosg@openwrt.org>
  * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef __ASM_MACH_ATH79_H
diff --git a/arch/mips/mach-ath79/include/mach/ddr.h b/arch/mips/mach-ath79/include/mach/ddr.h
index 181179aebfd..59b76c86f5c 100644
--- a/arch/mips/mach-ath79/include/mach/ddr.h
+++ b/arch/mips/mach-ath79/include/mach/ddr.h
@@ -1,7 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (C) 2015-2016 Wills Wang <wills.wang@live.com>
- *
- * SPDX-License-Identifier: GPL-2.0+
  */
 
 #ifndef __ASM_MACH_DDR_H
diff --git a/arch/mips/mach-ath79/qca953x/Makefile b/arch/mips/mach-ath79/qca953x/Makefile
index fd74f0c2ae5..5ba849c738d 100644
--- a/arch/mips/mach-ath79/qca953x/Makefile
+++ b/arch/mips/mach-ath79/qca953x/Makefile
@@ -1,6 +1,4 @@
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
+# SPDX-License-Identifier: GPL-2.0+
 
 obj-y += clk.o
 obj-y += ddr.o
diff --git a/arch/mips/mach-ath79/qca953x/clk.c b/arch/mips/mach-ath79/qca953x/clk.c
index 533356c6a1c..7447adef47e 100644
--- a/arch/mips/mach-ath79/qca953x/clk.c
+++ b/arch/mips/mach-ath79/qca953x/clk.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2015-2016 Wills Wang <wills.wang@live.com>
- *
- * SPDX-License-Identifier: GPL-2.0+
  */
 
 #include <common.h>
diff --git a/arch/mips/mach-ath79/qca953x/ddr.c b/arch/mips/mach-ath79/qca953x/ddr.c
index 92d591c2a68..268da7336b3 100644
--- a/arch/mips/mach-ath79/qca953x/ddr.c
+++ b/arch/mips/mach-ath79/qca953x/ddr.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2015-2016 Wills Wang <wills.wang@live.com>
  * Based on Atheros LSDK/QSDK
- *
- * SPDX-License-Identifier: GPL-2.0+
  */
 
 #include <common.h>
diff --git a/arch/mips/mach-ath79/qca953x/lowlevel_init.S b/arch/mips/mach-ath79/qca953x/lowlevel_init.S
index d7038faa6af..169d3407262 100644
--- a/arch/mips/mach-ath79/qca953x/lowlevel_init.S
+++ b/arch/mips/mach-ath79/qca953x/lowlevel_init.S
@@ -1,8 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (C) 2015-2016 Wills Wang <wills.wang@live.com>
  * Based on Atheros LSDK/QSDK
- *
- * SPDX-License-Identifier: GPL-2.0+
  */
 
 #include <config.h>
diff --git a/arch/mips/mach-ath79/reset.c b/arch/mips/mach-ath79/reset.c
index 0593ec4a1b0..6a94d886f94 100644
--- a/arch/mips/mach-ath79/reset.c
+++ b/arch/mips/mach-ath79/reset.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2015-2016 Wills Wang <wills.wang@live.com>
- *
- * SPDX-License-Identifier: GPL-2.0+
  */
 
 #include <common.h>