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/post/lib_powerpc/Makefile b/post/lib_powerpc/Makefile
index 0cbb6b6..8558497 100644
--- a/post/lib_powerpc/Makefile
+++ b/post/lib_powerpc/Makefile
@@ -1,9 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0+
 #
 # (C) Copyright 2002-2006
 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
 
 obj-y += asm.o
 obj-y += cpu.o cmp.o cmpi.o two.o twox.o three.o threex.o
diff --git a/post/lib_powerpc/andi.c b/post/lib_powerpc/andi.c
index 8a4b89b..49c5ee6 100644
--- a/post/lib_powerpc/andi.c
+++ b/post/lib_powerpc/andi.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2002
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/post/lib_powerpc/asm.S b/post/lib_powerpc/asm.S
index 76d2822..91b5999 100644
--- a/post/lib_powerpc/asm.S
+++ b/post/lib_powerpc/asm.S
@@ -1,7 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  *  Copyright (C) 2002 Wolfgang Denk <wd@denx.de>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <config.h>
diff --git a/post/lib_powerpc/b.c b/post/lib_powerpc/b.c
index 6875204..67edee0 100644
--- a/post/lib_powerpc/b.c
+++ b/post/lib_powerpc/b.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2002
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/post/lib_powerpc/cmp.c b/post/lib_powerpc/cmp.c
index 9d32c20..79b22eb 100644
--- a/post/lib_powerpc/cmp.c
+++ b/post/lib_powerpc/cmp.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2002
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/post/lib_powerpc/cmpi.c b/post/lib_powerpc/cmpi.c
index 5fd182f..b5b47ba 100644
--- a/post/lib_powerpc/cmpi.c
+++ b/post/lib_powerpc/cmpi.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2002
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/post/lib_powerpc/complex.c b/post/lib_powerpc/complex.c
index 593bbf7..7ab3c35 100644
--- a/post/lib_powerpc/complex.c
+++ b/post/lib_powerpc/complex.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2002
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/post/lib_powerpc/cpu.c b/post/lib_powerpc/cpu.c
index 529f2fa..109be38 100644
--- a/post/lib_powerpc/cpu.c
+++ b/post/lib_powerpc/cpu.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2002
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/post/lib_powerpc/cpu_asm.h b/post/lib_powerpc/cpu_asm.h
index b5c5889..75cf71b 100644
--- a/post/lib_powerpc/cpu_asm.h
+++ b/post/lib_powerpc/cpu_asm.h
@@ -1,8 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * (C) Copyright 2002
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 #ifndef _CPU_ASM_H
 #define _CPU_ASM_H
diff --git a/post/lib_powerpc/cr.c b/post/lib_powerpc/cr.c
index 19d930f..93de47a 100644
--- a/post/lib_powerpc/cr.c
+++ b/post/lib_powerpc/cr.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2002
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/post/lib_powerpc/fpu/20001122-1.c b/post/lib_powerpc/fpu/20001122-1.c
index caf5297..4b452dc 100644
--- a/post/lib_powerpc/fpu/20001122-1.c
+++ b/post/lib_powerpc/fpu/20001122-1.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2007
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 /*
  * This file is originally a part of the GCC testsuite.
diff --git a/post/lib_powerpc/fpu/20010114-2.c b/post/lib_powerpc/fpu/20010114-2.c
index 96e25c4..4aadd1e 100644
--- a/post/lib_powerpc/fpu/20010114-2.c
+++ b/post/lib_powerpc/fpu/20010114-2.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2007
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 /*
  * This file is originally a part of the GCC testsuite.
diff --git a/post/lib_powerpc/fpu/20010226-1.c b/post/lib_powerpc/fpu/20010226-1.c
index 57a21e4..b09a25c 100644
--- a/post/lib_powerpc/fpu/20010226-1.c
+++ b/post/lib_powerpc/fpu/20010226-1.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2007
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 /*
  * This file is originally a part of the GCC testsuite.
diff --git a/post/lib_powerpc/fpu/980619-1.c b/post/lib_powerpc/fpu/980619-1.c
index bf6c2ab..2fea708 100644
--- a/post/lib_powerpc/fpu/980619-1.c
+++ b/post/lib_powerpc/fpu/980619-1.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2007
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 /*
  * This file is originally a part of the GCC testsuite.
diff --git a/post/lib_powerpc/fpu/Makefile b/post/lib_powerpc/fpu/Makefile
index 5c2e804..404eefc 100644
--- a/post/lib_powerpc/fpu/Makefile
+++ b/post/lib_powerpc/fpu/Makefile
@@ -1,9 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0+
 #
 # (C) Copyright 2007
 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
 
 objs-before-objcopy := 20001122-1.o 20010114-2.o 20010226-1.o 980619-1.o \
 	acc1.o compare-fp-1.o fpu.o mul-subnormal-single-1.o darwin-ldouble.o
diff --git a/post/lib_powerpc/fpu/acc1.c b/post/lib_powerpc/fpu/acc1.c
index 22d28f9..9e5783b 100644
--- a/post/lib_powerpc/fpu/acc1.c
+++ b/post/lib_powerpc/fpu/acc1.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2007
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 /*
  * This file is originally a part of the GCC testsuite.
diff --git a/post/lib_powerpc/fpu/compare-fp-1.c b/post/lib_powerpc/fpu/compare-fp-1.c
index f23c7ed..d46a13a 100644
--- a/post/lib_powerpc/fpu/compare-fp-1.c
+++ b/post/lib_powerpc/fpu/compare-fp-1.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2007
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 /*
  * Test for correctness of composite floating-point comparisons.
diff --git a/post/lib_powerpc/fpu/darwin-ldouble.c b/post/lib_powerpc/fpu/darwin-ldouble.c
index faf9a94..16105c8 100644
--- a/post/lib_powerpc/fpu/darwin-ldouble.c
+++ b/post/lib_powerpc/fpu/darwin-ldouble.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Borrowed from GCC 4.2.2 (which still was GPL v2+)
  */
@@ -6,8 +7,6 @@
    Free Software Foundation, Inc.
 
 This file is part of GCC.
-
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 /*
diff --git a/post/lib_powerpc/fpu/fpu.c b/post/lib_powerpc/fpu/fpu.c
index 1e7ed31..0de76ce 100644
--- a/post/lib_powerpc/fpu/fpu.c
+++ b/post/lib_powerpc/fpu/fpu.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2007
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
  *
  * Author: Sergei Poselenov <sposelenov@emcraft.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/post/lib_powerpc/fpu/mul-subnormal-single-1.c b/post/lib_powerpc/fpu/mul-subnormal-single-1.c
index 2815a30..cb61c91 100644
--- a/post/lib_powerpc/fpu/mul-subnormal-single-1.c
+++ b/post/lib_powerpc/fpu/mul-subnormal-single-1.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2007
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 /*
  * This file is originally a part of the GCC testsuite.
diff --git a/post/lib_powerpc/load.c b/post/lib_powerpc/load.c
index f233587..3fbd8ba 100644
--- a/post/lib_powerpc/load.c
+++ b/post/lib_powerpc/load.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2002
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/post/lib_powerpc/multi.c b/post/lib_powerpc/multi.c
index 9c315df..51750bb 100644
--- a/post/lib_powerpc/multi.c
+++ b/post/lib_powerpc/multi.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2002
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/post/lib_powerpc/rlwimi.c b/post/lib_powerpc/rlwimi.c
index 6bd53d0..16e6422 100644
--- a/post/lib_powerpc/rlwimi.c
+++ b/post/lib_powerpc/rlwimi.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2002
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/post/lib_powerpc/rlwinm.c b/post/lib_powerpc/rlwinm.c
index 35a1a40..f88d62a 100644
--- a/post/lib_powerpc/rlwinm.c
+++ b/post/lib_powerpc/rlwinm.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2002
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/post/lib_powerpc/rlwnm.c b/post/lib_powerpc/rlwnm.c
index 6e82893..c12577f 100644
--- a/post/lib_powerpc/rlwnm.c
+++ b/post/lib_powerpc/rlwnm.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2002
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/post/lib_powerpc/srawi.c b/post/lib_powerpc/srawi.c
index 3723e33..cad3aec 100644
--- a/post/lib_powerpc/srawi.c
+++ b/post/lib_powerpc/srawi.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2002
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/post/lib_powerpc/store.c b/post/lib_powerpc/store.c
index aa2dc99..8bd65c3 100644
--- a/post/lib_powerpc/store.c
+++ b/post/lib_powerpc/store.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2002
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/post/lib_powerpc/string.c b/post/lib_powerpc/string.c
index 930193b..3d3f2b1 100644
--- a/post/lib_powerpc/string.c
+++ b/post/lib_powerpc/string.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2002
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/post/lib_powerpc/three.c b/post/lib_powerpc/three.c
index c3e7f68..27a32a2 100644
--- a/post/lib_powerpc/three.c
+++ b/post/lib_powerpc/three.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2002
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/post/lib_powerpc/threei.c b/post/lib_powerpc/threei.c
index 1d40e1a..28c17df 100644
--- a/post/lib_powerpc/threei.c
+++ b/post/lib_powerpc/threei.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2002
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/post/lib_powerpc/threex.c b/post/lib_powerpc/threex.c
index ce1edf8..ea9e46586 100644
--- a/post/lib_powerpc/threex.c
+++ b/post/lib_powerpc/threex.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2002
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/post/lib_powerpc/two.c b/post/lib_powerpc/two.c
index c6f7de4..2c0efae 100644
--- a/post/lib_powerpc/two.c
+++ b/post/lib_powerpc/two.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2002
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/post/lib_powerpc/twox.c b/post/lib_powerpc/twox.c
index 9549dbb..eae4c57 100644
--- a/post/lib_powerpc/twox.c
+++ b/post/lib_powerpc/twox.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2002
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>