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>

9 files changed, 9 insertions, 20 deletions

diff --git a/arch/mips/lib/Makefile b/arch/mips/lib/Makefile
index ef557c6932..589bc651f9 100644
--- a/arch/mips/lib/Makefile
+++ b/arch/mips/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-y	+= cache.o
 obj-y	+= cache_init.o
diff --git a/arch/mips/lib/asm-offsets.c b/arch/mips/lib/asm-offsets.c
index 9ed295ace3..22dc14b107 100644
--- a/arch/mips/lib/asm-offsets.c
+++ b/arch/mips/lib/asm-offsets.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * offset.c: Calculate pt_regs and task_struct offsets.
  *
@@ -7,8 +8,6 @@
  *
  * Kevin Kissell, kevink@mips.com and Carsten Langgaard, carstenl@mips.com
  * Copyright (C) 2000 MIPS Technologies, Inc.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <asm/ptrace.h>
diff --git a/arch/mips/lib/bootm.c b/arch/mips/lib/bootm.c
index 9dc4740768..deca5189e3 100644
--- a/arch/mips/lib/bootm.c
+++ b/arch/mips/lib/bootm.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2003
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/arch/mips/lib/cache.c b/arch/mips/lib/cache.c
index e305f3207a..1d14fc487e 100644
--- a/arch/mips/lib/cache.c
+++ b/arch/mips/lib/cache.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2003
  * Wolfgang Denk, DENX Software Engineering, <wd@denx.de>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/arch/mips/lib/cache_init.S b/arch/mips/lib/cache_init.S
index 698a5afdee..b209f23f0a 100644
--- a/arch/mips/lib/cache_init.S
+++ b/arch/mips/lib/cache_init.S
@@ -1,9 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  *  Cache-handling routined for MIPS CPUs
  *
  *  Copyright (c) 2003	Wolfgang Denk <wd@denx.de>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <asm-offsets.h>
diff --git a/arch/mips/lib/genex.S b/arch/mips/lib/genex.S
index 2d6d7b0c18..aba8c48827 100644
--- a/arch/mips/lib/genex.S
+++ b/arch/mips/lib/genex.S
@@ -1,10 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (C) 1994 - 2000, 2001, 2003 Ralf Baechle
  * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
  * Copyright (C) 2002, 2007  Maciej W. Rozycki
  * Copyright (C) 2001, 2012 MIPS Technologies, Inc.  All rights reserved.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <asm/asm.h>
diff --git a/arch/mips/lib/reloc.c b/arch/mips/lib/reloc.c
index d0c52c9674..c6a517d66f 100644
--- a/arch/mips/lib/reloc.c
+++ b/arch/mips/lib/reloc.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * MIPS Relocation
  *
  * Copyright (c) 2017 Imagination Technologies Ltd.
  *
- * SPDX-License-Identifier:	GPL-2.0+
- *
  * Relocation data, found in the .rel section, is generated by the mips-relocs
  * tool & contains a record of all locations in the U-Boot binary that need to
  * be fixed up during relocation.
diff --git a/arch/mips/lib/stack.c b/arch/mips/lib/stack.c
index c80f5fe146..99fd056905 100644
--- a/arch/mips/lib/stack.c
+++ b/arch/mips/lib/stack.c
@@ -1,6 +1,4 @@
-/*
- * SPDX-License-Identifier:	GPL-2.0+
- */
+// SPDX-License-Identifier: GPL-2.0+
 
 #include <common.h>
 
diff --git a/arch/mips/lib/traps.c b/arch/mips/lib/traps.c
index 18622c223d..976978c3e9 100644
--- a/arch/mips/lib/traps.c
+++ b/arch/mips/lib/traps.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 1994 - 1999, 2000, 01, 06 Ralf Baechle
  * Copyright (C) 1995, 1996 Paul M. Antoine
@@ -7,8 +8,6 @@
  * Copyright (C) 2002, 2003, 2004, 2005, 2007  Maciej W. Rozycki
  * Copyright (C) 2000, 2001, 2012 MIPS Technologies, Inc.  All rights reserved.
  * Copyright (C) 2014, Imagination Technologies Ltd.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>