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>

13 files changed, 13 insertions, 29 deletions

diff --git a/arch/arm/cpu/arm920t/Makefile b/arch/arm/cpu/arm920t/Makefile
index 948b764193..c63f578f1a 100644
--- a/arch/arm/cpu/arm920t/Makefile
+++ b/arch/arm/cpu/arm920t/Makefile
@@ -1,9 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0+
 #
 # (C) Copyright 2000-2006
 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
 
 extra-y	= start.o
 
diff --git a/arch/arm/cpu/arm920t/cpu.c b/arch/arm/cpu/arm920t/cpu.c
index d73b51dced..2ef133f133 100644
--- a/arch/arm/cpu/arm920t/cpu.c
+++ b/arch/arm/cpu/arm920t/cpu.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2002
  * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
@@ -5,8 +6,6 @@
  *
  * (C) Copyright 2002
  * Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 /*
diff --git a/arch/arm/cpu/arm920t/ep93xx/Makefile b/arch/arm/cpu/arm920t/ep93xx/Makefile
index 638333a484..152b5e7c5a 100644
--- a/arch/arm/cpu/arm920t/ep93xx/Makefile
+++ b/arch/arm/cpu/arm920t/ep93xx/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0+
 #
 # Cirrus Logic EP93xx CPU-specific Makefile
 #
@@ -13,9 +14,6 @@
 #
 # (C) Copyright 2000, 2001, 2002
 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
 
 obj-y   = cpu.o led.o speed.o timer.o
 obj-y   += lowlevel_init.o
diff --git a/arch/arm/cpu/arm920t/ep93xx/cpu.c b/arch/arm/cpu/arm920t/ep93xx/cpu.c
index bb5ffd292c..3aae12f8ad 100644
--- a/arch/arm/cpu/arm920t/ep93xx/cpu.c
+++ b/arch/arm/cpu/arm920t/ep93xx/cpu.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Cirrus Logic EP93xx CPU-specific support.
  *
@@ -5,8 +6,6 @@
  *
  * Copyright (C) 2004, 2005
  * Cory T. Tusar, Videon Central, Inc., <ctusar@videon-central.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/arch/arm/cpu/arm920t/ep93xx/led.c b/arch/arm/cpu/arm920t/ep93xx/led.c
index 402fa3a7bc..862663acba 100644
--- a/arch/arm/cpu/arm920t/ep93xx/led.c
+++ b/arch/arm/cpu/arm920t/ep93xx/led.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2010, 2009 Matthias Kaehlcke <matthias@kaehlcke.net>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <asm/io.h>
diff --git a/arch/arm/cpu/arm920t/ep93xx/lowlevel_init.S b/arch/arm/cpu/arm920t/ep93xx/lowlevel_init.S
index cfad206edd..5239b1053c 100644
--- a/arch/arm/cpu/arm920t/ep93xx/lowlevel_init.S
+++ b/arch/arm/cpu/arm920t/ep93xx/lowlevel_init.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Low-level initialization for EP93xx
  *
@@ -10,8 +11,6 @@
  *
  * See file CREDITS for list of people who contributed to this
  * project.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <config.h>
diff --git a/arch/arm/cpu/arm920t/ep93xx/speed.c b/arch/arm/cpu/arm920t/ep93xx/speed.c
index f0ab7d4e3d..51e9dda055 100644
--- a/arch/arm/cpu/arm920t/ep93xx/speed.c
+++ b/arch/arm/cpu/arm920t/ep93xx/speed.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Cirrus Logic EP93xx PLL support.
  *
  * Copyright (C) 2009 Matthias Kaehlcke <matthias@kaehlcke.net>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/arch/arm/cpu/arm920t/ep93xx/timer.c b/arch/arm/cpu/arm920t/ep93xx/timer.c
index c2f239aab2..5f3609aec3 100644
--- a/arch/arm/cpu/arm920t/ep93xx/timer.c
+++ b/arch/arm/cpu/arm920t/ep93xx/timer.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Cirrus Logic EP93xx timer support.
  *
@@ -8,8 +9,6 @@
  *
  * Based on the original intr.c Cirrus Logic EP93xx Rev D. interrupt support,
  * author unknown.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/arch/arm/cpu/arm920t/imx/Makefile b/arch/arm/cpu/arm920t/imx/Makefile
index 54ce646d97..04bc129592 100644
--- a/arch/arm/cpu/arm920t/imx/Makefile
+++ b/arch/arm/cpu/arm920t/imx/Makefile
@@ -1,9 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0+
 #
 # (C) Copyright 2000-2006
 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
 
 obj-y	+= generic.o
 obj-y	+= speed.o
diff --git a/arch/arm/cpu/arm920t/imx/generic.c b/arch/arm/cpu/arm920t/imx/generic.c
index 1441ab4399..dbb908ecdc 100644
--- a/arch/arm/cpu/arm920t/imx/generic.c
+++ b/arch/arm/cpu/arm920t/imx/generic.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *  arch/arm/mach-imx/generic.c
  *
@@ -6,8 +7,6 @@
  *  Copyright: Synertronixx GmbH
  *
  *  Common code for i.MX machines
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/arch/arm/cpu/arm920t/imx/speed.c b/arch/arm/cpu/arm920t/imx/speed.c
index 1951313dd2..eff611319d 100644
--- a/arch/arm/cpu/arm920t/imx/speed.c
+++ b/arch/arm/cpu/arm920t/imx/speed.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *
  * (c) 2004 Sascha Hauer <sascha@saschahauer.de>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 
diff --git a/arch/arm/cpu/arm920t/imx/timer.c b/arch/arm/cpu/arm920t/imx/timer.c
index 178422a9bf..cd9b546537 100644
--- a/arch/arm/cpu/arm920t/imx/timer.c
+++ b/arch/arm/cpu/arm920t/imx/timer.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2002
  * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
@@ -9,8 +10,6 @@
  *
  * (C) Copyright 2002
  * Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/arch/arm/cpu/arm920t/start.S b/arch/arm/cpu/arm920t/start.S
index 3880a402d8..e9326f4b5b 100644
--- a/arch/arm/cpu/arm920t/start.S
+++ b/arch/arm/cpu/arm920t/start.S
@@ -1,11 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  *  armboot - Startup Code for ARM920 CPU-core
  *
  *  Copyright (c) 2001	Marius Gröger <mag@sysgo.de>
  *  Copyright (c) 2002	Alex Züpke <azu@sysgo.de>
  *  Copyright (c) 2002	Gary Jennejohn <garyj@denx.de>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <asm-offsets.h>