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>

16 files changed, 16 insertions, 33 deletions

diff --git a/arch/arm/mach-zynq/Makefile b/arch/arm/mach-zynq/Makefile
index e3f0117da5..8737f434d9 100644
--- a/arch/arm/mach-zynq/Makefile
+++ b/arch/arm/mach-zynq/Makefile
@@ -1,12 +1,10 @@
+# SPDX-License-Identifier: GPL-2.0+
 #
 # (C) Copyright 2000-2003
 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 #
 # (C) Copyright 2008
 # Guennadi Liakhovetki, DENX Software Engineering, <lg@denx.de>
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
 
 obj-y	:= timer.o
 obj-y	+= cpu.o
diff --git a/arch/arm/mach-zynq/clk.c b/arch/arm/mach-zynq/clk.c
index 3c27038630..1a6acd46cd 100644
--- a/arch/arm/mach-zynq/clk.c
+++ b/arch/arm/mach-zynq/clk.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2013 Soren Brinkmann <soren.brinkmann@xilinx.com>
  * Copyright (C) 2013 Xilinx, Inc. All rights reserved.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 #include <clk.h>
 #include <common.h>
diff --git a/arch/arm/mach-zynq/cpu.c b/arch/arm/mach-zynq/cpu.c
index ee1c1a943b..df4eec8887 100644
--- a/arch/arm/mach-zynq/cpu.c
+++ b/arch/arm/mach-zynq/cpu.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2012 Michal Simek <monstr@monstr.eu>
  * Copyright (C) 2012 Xilinx, Inc. All rights reserved.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 #include <common.h>
 #include <asm/io.h>
diff --git a/arch/arm/mach-zynq/ddrc.c b/arch/arm/mach-zynq/ddrc.c
index 795e2bd003..28988ef95b 100644
--- a/arch/arm/mach-zynq/ddrc.c
+++ b/arch/arm/mach-zynq/ddrc.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2012 - 2013 Michal Simek <monstr@monstr.eu>
  * Copyright (C) 2012 - 2017 Xilinx, Inc. All rights reserved.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/arch/arm/mach-zynq/include/mach/clk.h b/arch/arm/mach-zynq/include/mach/clk.h
index 8a039ae56b..4fff9f4525 100644
--- a/arch/arm/mach-zynq/include/mach/clk.h
+++ b/arch/arm/mach-zynq/include/mach/clk.h
@@ -1,7 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (c) 2013 Xilinx Inc.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef _ZYNQ_CLK_H_
diff --git a/arch/arm/mach-zynq/include/mach/gpio.h b/arch/arm/mach-zynq/include/mach/gpio.h
index f3dfd65b98..6143e24563 100644
--- a/arch/arm/mach-zynq/include/mach/gpio.h
+++ b/arch/arm/mach-zynq/include/mach/gpio.h
@@ -1,8 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (c) 2013 Xilinx, Inc.
  * Copyright (c) 2015 DAVE Embedded Systems
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef _ZYNQ_GPIO_H
diff --git a/arch/arm/mach-zynq/include/mach/hardware.h b/arch/arm/mach-zynq/include/mach/hardware.h
index 79347a83ea..f69cf004ec 100644
--- a/arch/arm/mach-zynq/include/mach/hardware.h
+++ b/arch/arm/mach-zynq/include/mach/hardware.h
@@ -1,7 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (c) 2013 Xilinx Inc.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef _ASM_ARCH_HARDWARE_H
diff --git a/arch/arm/mach-zynq/include/mach/ps7_init_gpl.h b/arch/arm/mach-zynq/include/mach/ps7_init_gpl.h
index 0af4165a3e..bd46a9b31e 100644
--- a/arch/arm/mach-zynq/include/mach/ps7_init_gpl.h
+++ b/arch/arm/mach-zynq/include/mach/ps7_init_gpl.h
@@ -1,8 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * (c) Copyright 2010-2014 Xilinx, Inc. All rights reserved.
  * (c) Copyright 2016 Topic Embedded Products.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef _ASM_ARCH_PS7_INIT_GPL_H
diff --git a/arch/arm/mach-zynq/include/mach/sys_proto.h b/arch/arm/mach-zynq/include/mach/sys_proto.h
index af61352dd1..1dc16d479e 100644
--- a/arch/arm/mach-zynq/include/mach/sys_proto.h
+++ b/arch/arm/mach-zynq/include/mach/sys_proto.h
@@ -1,7 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (c) 2013 Xilinx Inc.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef _SYS_PROTO_H_
diff --git a/arch/arm/mach-zynq/lowlevel_init.S b/arch/arm/mach-zynq/lowlevel_init.S
index e5ec9bea55..ed7329d9a5 100644
--- a/arch/arm/mach-zynq/lowlevel_init.S
+++ b/arch/arm/mach-zynq/lowlevel_init.S
@@ -1,7 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (C) 2013 - 2015 Xilinx, Inc. All rights reserved.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <asm-offsets.h>
diff --git a/arch/arm/mach-zynq/ps7_spl_init.c b/arch/arm/mach-zynq/ps7_spl_init.c
index ba2dad759c..4c38724d4d 100644
--- a/arch/arm/mach-zynq/ps7_spl_init.c
+++ b/arch/arm/mach-zynq/ps7_spl_init.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (c) Copyright 2010-2017 Xilinx, Inc. All rights reserved.
  * (c) Copyright 2016 Topic Embedded Products.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <asm/io.h>
diff --git a/arch/arm/mach-zynq/slcr.c b/arch/arm/mach-zynq/slcr.c
index 0b263fac58..5d9f4d23f3 100644
--- a/arch/arm/mach-zynq/slcr.c
+++ b/arch/arm/mach-zynq/slcr.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (c) 2013 - 2017 Xilinx Inc.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/arch/arm/mach-zynq/spl.c b/arch/arm/mach-zynq/spl.c
index d1e61aab11..48e3d8d57f 100644
--- a/arch/arm/mach-zynq/spl.c
+++ b/arch/arm/mach-zynq/spl.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2014 - 2017 Xilinx, Inc. Michal Simek
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 #include <common.h>
 #include <debug_uart.h>
diff --git a/arch/arm/mach-zynq/timer.c b/arch/arm/mach-zynq/timer.c
index 493d608a5b..8658abb457 100644
--- a/arch/arm/mach-zynq/timer.c
+++ b/arch/arm/mach-zynq/timer.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2017 Weidmüller Interface GmbH & Co. KG
  * Stefan Herbrechtsmeier <stefan.herbrechtsmeier@weidmueller.com>
@@ -24,8 +25,6 @@
  * (C) Copyright 2002
  * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
  * Alex Zuepke <azu@sysgo.de>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <clk.h>
diff --git a/arch/arm/mach-zynq/u-boot-spl.lds b/arch/arm/mach-zynq/u-boot-spl.lds
index 9a59164c87..080c6bf06d 100644
--- a/arch/arm/mach-zynq/u-boot-spl.lds
+++ b/arch/arm/mach-zynq/u-boot-spl.lds
@@ -1,11 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (c) 2014 Xilinx, Inc. Michal Simek
  * Copyright (c) 2004-2008 Texas Instruments
  *
  * (C) Copyright 2002
  * Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 MEMORY { .sram : ORIGIN = CONFIG_SPL_TEXT_BASE,\
diff --git a/arch/arm/mach-zynq/u-boot.lds b/arch/arm/mach-zynq/u-boot.lds
index 86559cb6aa..ec9a0a0161 100644
--- a/arch/arm/mach-zynq/u-boot.lds
+++ b/arch/arm/mach-zynq/u-boot.lds
@@ -1,10 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (c) 2004-2008 Texas Instruments
  *
  * (C) Copyright 2002
  * Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")