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>

6 files changed, 8 insertions, 14 deletions

diff --git a/include/u-boot/crc.h b/include/u-boot/crc.h
index 6d08f5df98..e98cb46c90 100644
--- a/include/u-boot/crc.h
+++ b/include/u-boot/crc.h
@@ -1,9 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * (C) Copyright 2009
  * Marvell Semiconductor <www.marvell.com>
  * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef _UBOOT_CRC_H
diff --git a/include/u-boot/rsa-checksum.h b/include/u-boot/rsa-checksum.h
index c240720249..02b814d34e 100644
--- a/include/u-boot/rsa-checksum.h
+++ b/include/u-boot/rsa-checksum.h
@@ -1,8 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (c) 2013, Andreas Oetken.
- *
- * SPDX-License-Identifier:    GPL-2.0+
-*/
+ */
 
 #ifndef _RSA_CHECKSUM_H
 #define _RSA_CHECKSUM_H
diff --git a/include/u-boot/rsa-mod-exp.h b/include/u-boot/rsa-mod-exp.h
index 45a031b4b6..3253614ede 100644
--- a/include/u-boot/rsa-mod-exp.h
+++ b/include/u-boot/rsa-mod-exp.h
@@ -1,8 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright 2014 Freescale Semiconductor, Inc.
- *
- * SPDX-License-Identifier:    GPL-2.0+
-*/
+ */
 
 #ifndef _RSA_MOD_EXP_H
 #define _RSA_MOD_EXP_H
diff --git a/include/u-boot/rsa.h b/include/u-boot/rsa.h
index 0e96c38711..68bcb14c74 100644
--- a/include/u-boot/rsa.h
+++ b/include/u-boot/rsa.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (c) 2013, Google Inc.
  *
@@ -5,8 +6,6 @@
  *
  * (C) Copyright 2000-2006
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef _RSA_H
diff --git a/include/u-boot/sha1.h b/include/u-boot/sha1.h
index 2634a29c20..283f103293 100644
--- a/include/u-boot/sha1.h
+++ b/include/u-boot/sha1.h
@@ -1,11 +1,10 @@
+/* SPDX-License-Identifier: LGPL-2.1 */
 /**
  * \file sha1.h
  * based from http://xyssl.org/code/source/sha1/
  *  FIPS-180-1 compliant SHA-1 implementation
  *
  *  Copyright (C) 2003-2006  Christophe Devine
- *
- * SPDX-License-Identifier:	LGPL-2.1
  */
 /*
  *  The SHA-1 standard was published by NIST in 1993.
diff --git a/include/u-boot/variadic-macro.h b/include/u-boot/variadic-macro.h
index 922beafcea..cb815d0fee 100644
--- a/include/u-boot/variadic-macro.h
+++ b/include/u-boot/variadic-macro.h
@@ -1,9 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Helper for work with variadic macros
  *
  * 2017 Marek Behun, CZ.NIC, marek.behun@nic.cz
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef __VARIADIC_MACRO_H__