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>
diff --git a/arch/microblaze/Makefile b/arch/microblaze/Makefile
index ae4adc2..dd68ce4 100644
--- a/arch/microblaze/Makefile
+++ b/arch/microblaze/Makefile
@@ -1,6 +1,4 @@
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
+# SPDX-License-Identifier: GPL-2.0+
 
 head-y := arch/microblaze/cpu/start.o
 
diff --git a/arch/microblaze/config.mk b/arch/microblaze/config.mk
index e7a3477..3c5866a 100644
--- a/arch/microblaze/config.mk
+++ b/arch/microblaze/config.mk
@@ -1,12 +1,10 @@
+# SPDX-License-Identifier: GPL-2.0+
 #
 # (C) Copyright 2007-2008 Michal Simek
 # Michal SIMEK <monstr@monstr.eu>
 #
 # (C) Copyright 2004 Atmark Techno, Inc.
 # Yasushi SHOJI <yashi@atmark-techno.com>
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
 
 ifeq ($(CROSS_COMPILE),)
 CROSS_COMPILE := mb-
diff --git a/arch/microblaze/cpu/Makefile b/arch/microblaze/cpu/Makefile
index 0697210..f7a83d0 100644
--- a/arch/microblaze/cpu/Makefile
+++ b/arch/microblaze/cpu/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
 obj-y	= irq.o
diff --git a/arch/microblaze/cpu/cache.c b/arch/microblaze/cpu/cache.c
index ddfa020..eebeb37 100644
--- a/arch/microblaze/cpu/cache.c
+++ b/arch/microblaze/cpu/cache.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2007 Michal Simek
  *
  * Michal SIMEK <monstr@monstr.eu>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/arch/microblaze/cpu/exception.c b/arch/microblaze/cpu/exception.c
index aa34f45..bdcbe08 100644
--- a/arch/microblaze/cpu/exception.c
+++ b/arch/microblaze/cpu/exception.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2007 Michal Simek
  *
  * Michal  SIMEK <monstr@monstr.eu>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/arch/microblaze/cpu/interrupts.c b/arch/microblaze/cpu/interrupts.c
index 010ca4a..aea612e 100644
--- a/arch/microblaze/cpu/interrupts.c
+++ b/arch/microblaze/cpu/interrupts.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2007 Michal Simek
  * (C) Copyright 2004 Atmark Techno, Inc.
  *
  * Michal  SIMEK <monstr@monstr.eu>
  * Yasushi SHOJI <yashi@atmark-techno.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/arch/microblaze/cpu/irq.S b/arch/microblaze/cpu/irq.S
index 5cfe151..ff3e6af 100644
--- a/arch/microblaze/cpu/irq.S
+++ b/arch/microblaze/cpu/irq.S
@@ -1,9 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * (C) Copyright 2007 Michal Simek
  *
  * Michal  SIMEK <monstr@monstr.eu>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <config.h>
diff --git a/arch/microblaze/cpu/spl.c b/arch/microblaze/cpu/spl.c
index 3407e36..d3c523d 100644
--- a/arch/microblaze/cpu/spl.c
+++ b/arch/microblaze/cpu/spl.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2013 - 2014 Xilinx, Inc
  *
  * Michal Simek <michal.simek@xilinx.com>
- *
- * SPDX-License-Identifier:     GPL-2.0+
  */
 
 #include <common.h>
diff --git a/arch/microblaze/cpu/start.S b/arch/microblaze/cpu/start.S
index baf4f51..22903e3 100644
--- a/arch/microblaze/cpu/start.S
+++ b/arch/microblaze/cpu/start.S
@@ -1,11 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * (C) Copyright 2007 Michal Simek
  * (C) Copyright 2004 Atmark Techno, Inc.
  *
  * Michal  SIMEK <monstr@monstr.eu>
  * Yasushi SHOJI <yashi@atmark-techno.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <asm-offsets.h>
diff --git a/arch/microblaze/cpu/timer.c b/arch/microblaze/cpu/timer.c
index 8845e07..ef22902 100644
--- a/arch/microblaze/cpu/timer.c
+++ b/arch/microblaze/cpu/timer.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2007 Michal Simek
  *
  * Michal  SIMEK <monstr@monstr.eu>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/arch/microblaze/cpu/u-boot-spl.lds b/arch/microblaze/cpu/u-boot-spl.lds
index c60336c..99c62b5 100644
--- a/arch/microblaze/cpu/u-boot-spl.lds
+++ b/arch/microblaze/cpu/u-boot-spl.lds
@@ -1,9 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * (C) Copyright 2013 - 2014 Xilinx, Inc
  *
  * Michal Simek <michal.simek@xilinx.com>
- *
- * SPDX-License-Identifier:     GPL-2.0+
  */
 
 #include <asm-offsets.h>
diff --git a/arch/microblaze/cpu/u-boot.lds b/arch/microblaze/cpu/u-boot.lds
index 2502a0d..9282643 100644
--- a/arch/microblaze/cpu/u-boot.lds
+++ b/arch/microblaze/cpu/u-boot.lds
@@ -1,9 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * (C) Copyright 2004 Atmark Techno, Inc.
  *
  * Yasushi SHOJI <yashi@atmark-techno.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 OUTPUT_ARCH(microblaze)
diff --git a/arch/microblaze/dts/Makefile b/arch/microblaze/dts/Makefile
index f80d8fd..4690dc1 100644
--- a/arch/microblaze/dts/Makefile
+++ b/arch/microblaze/dts/Makefile
@@ -1,6 +1,4 @@
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
+# SPDX-License-Identifier: GPL-2.0+
 
 dtb-y += $(shell echo $(CONFIG_DEFAULT_DEVICE_TREE)).dtb
 
diff --git a/arch/microblaze/include/asm/asm.h b/arch/microblaze/include/asm/asm.h
index 94f0562..fb8fe38 100644
--- a/arch/microblaze/include/asm/asm.h
+++ b/arch/microblaze/include/asm/asm.h
@@ -1,9 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * (C) Copyright 2007 Michal Simek
  *
  * Michal  SIMEK <monstr@monstr.eu>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 /* FSL macros */
diff --git a/arch/microblaze/include/asm/cache.h b/arch/microblaze/include/asm/cache.h
index d02d57a..baee01a 100644
--- a/arch/microblaze/include/asm/cache.h
+++ b/arch/microblaze/include/asm/cache.h
@@ -1,7 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (c) 2011 The Chromium OS Authors.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef __MICROBLAZE_CACHE_H__
diff --git a/arch/microblaze/include/asm/config.h b/arch/microblaze/include/asm/config.h
index 4af408a..93a3fe8 100644
--- a/arch/microblaze/include/asm/config.h
+++ b/arch/microblaze/include/asm/config.h
@@ -1,7 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright 2009 Freescale Semiconductor, Inc.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef _ASM_CONFIG_H_
diff --git a/arch/microblaze/include/asm/global_data.h b/arch/microblaze/include/asm/global_data.h
index a0bab6e..05868ac 100644
--- a/arch/microblaze/include/asm/global_data.h
+++ b/arch/microblaze/include/asm/global_data.h
@@ -1,9 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * (C) Copyright 2004 Atmark Techno, Inc.
  *
  * Yasushi SHOJI <yashi@atmark-techno.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef	__ASM_GBL_DATA_H
diff --git a/arch/microblaze/include/asm/microblaze_intc.h b/arch/microblaze/include/asm/microblaze_intc.h
index 6586838..b4e0fc6 100644
--- a/arch/microblaze/include/asm/microblaze_intc.h
+++ b/arch/microblaze/include/asm/microblaze_intc.h
@@ -1,9 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * (C) Copyright 2007 Michal Simek
  *
  * Michal  SIMEK <monstr@monstr.cz>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 typedef volatile struct microblaze_intc_t {
diff --git a/arch/microblaze/include/asm/microblaze_timer.h b/arch/microblaze/include/asm/microblaze_timer.h
index 0d81402..2ed1651 100644
--- a/arch/microblaze/include/asm/microblaze_timer.h
+++ b/arch/microblaze/include/asm/microblaze_timer.h
@@ -1,9 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * (C) Copyright 2007 Michal Simek
  *
  * Michal  SIMEK <monstr@monstr.cz>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #define TIMER_ENABLE_ALL    0x400 /* ENALL */
diff --git a/arch/microblaze/include/asm/processor.h b/arch/microblaze/include/asm/processor.h
index 5afc8f9..16e0d0e 100644
--- a/arch/microblaze/include/asm/processor.h
+++ b/arch/microblaze/include/asm/processor.h
@@ -1,7 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (C) 2011 Michal Simek <monstr@monstr.eu>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef __ASM_MICROBLAZE_PROCESSOR_H
diff --git a/arch/microblaze/include/asm/sections.h b/arch/microblaze/include/asm/sections.h
index 506fc43..740783c 100644
--- a/arch/microblaze/include/asm/sections.h
+++ b/arch/microblaze/include/asm/sections.h
@@ -1,6 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (c) 2012 The Chromium OS Authors.
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef __ASM_MICROBLAZE_SECTIONS_H
diff --git a/arch/microblaze/include/asm/spl.h b/arch/microblaze/include/asm/spl.h
index c1cae6c..350d283 100644
--- a/arch/microblaze/include/asm/spl.h
+++ b/arch/microblaze/include/asm/spl.h
@@ -1,9 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * (C) Copyright 2013 - 2014 Xilinx, Inc
  *
  * Michal Simek <michal.simek@xilinx.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef _ASM_MICROBLAZE_SPL_H_
diff --git a/arch/microblaze/include/asm/u-boot.h b/arch/microblaze/include/asm/u-boot.h
index 66f8f95..a922122 100644
--- a/arch/microblaze/include/asm/u-boot.h
+++ b/arch/microblaze/include/asm/u-boot.h
@@ -1,10 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * (C) Copyright 2004 Atmark Techno, Inc.
  *
  * Yasushi SHOJI <yashi@atmark-techno.com>
  *
- * SPDX-License-Identifier:	GPL-2.0+
- *
  ********************************************************************
  * NOTE: This header file defines an interface to U-Boot. Including
  * this (unmodified) header file in another file is considered normal
diff --git a/arch/microblaze/lib/Makefile b/arch/microblaze/lib/Makefile
index 0289d0c..05f447a 100644
--- a/arch/microblaze/lib/Makefile
+++ b/arch/microblaze/lib/Makefile
@@ -1,9 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0+
 #
 # (C) Copyright 2003-2006
 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
 
 obj-$(CONFIG_CMD_BOOTM) += bootm.o
 obj-y	+= muldi3.o
diff --git a/arch/microblaze/lib/bootm.c b/arch/microblaze/lib/bootm.c
index 0be72f5..083a43c 100644
--- a/arch/microblaze/lib/bootm.c
+++ b/arch/microblaze/lib/bootm.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2007 Michal Simek
  * (C) Copyright 2004 Atmark Techno, Inc.
  *
  * Michal  SIMEK <monstr@monstr.eu>
  * Yasushi SHOJI <yashi@atmark-techno.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/arch/microblaze/lib/muldi3.c b/arch/microblaze/lib/muldi3.c
index 95b6b32..05389bd 100644
--- a/arch/microblaze/lib/muldi3.c
+++ b/arch/microblaze/lib/muldi3.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * U-Boot - muldi3.c contains routines for mult and div
  *
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 /* Generic function got from GNU gcc package, libgcc2.c */