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>

7 files changed, 7 insertions, 16 deletions

diff --git a/board/gumstix/duovero/Makefile b/board/gumstix/duovero/Makefile
index f738c58d04..d6eff473f8 100644
--- a/board/gumstix/duovero/Makefile
+++ b/board/gumstix/duovero/Makefile
@@ -1,8 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0+
 #
 # (C) Copyright 2000, 2001, 2002
 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
 
 obj-y	:= duovero.o
diff --git a/board/gumstix/duovero/duovero.c b/board/gumstix/duovero/duovero.c
index 849224efda..78fb98ef64 100644
--- a/board/gumstix/duovero/duovero.c
+++ b/board/gumstix/duovero/duovero.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2013
  * Gumstix Inc. <www.gumstix.com>
  * Maintainer: Ash Charles  <ash@gumstix.com>
- *
- * SPDX-License-Identifier:     GPL-2.0+
  */
 #include <common.h>
 #include <netdev.h>
diff --git a/board/gumstix/duovero/duovero_mux_data.h b/board/gumstix/duovero/duovero_mux_data.h
index 1be247b874..b56bffe165 100644
--- a/board/gumstix/duovero/duovero_mux_data.h
+++ b/board/gumstix/duovero/duovero_mux_data.h
@@ -1,9 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * (C) Copyright 2012
  * Gumstix Incorporated, <www.gumstix.com>
  * Maintainer: Ash Charles <ash@gumstix.com>
- *
- * SPDX-License-Identifier:     GPL-2.0+
  */
 #ifndef _DUOVERO_MUX_DATA_H_
 #define _DUOVERO_MUX_DATA_H_
diff --git a/board/gumstix/pepper/Makefile b/board/gumstix/pepper/Makefile
index ecb1d61669..ff6f8b4221 100644
--- a/board/gumstix/pepper/Makefile
+++ b/board/gumstix/pepper/Makefile
@@ -1,10 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0+
 #
 # Makefile
 #
 # Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
 
 ifdef CONFIG_SPL_BUILD
 obj-y	+= mux.o
diff --git a/board/gumstix/pepper/board.c b/board/gumstix/pepper/board.c
index bfc5fd1c46..ea29dcd75e 100644
--- a/board/gumstix/pepper/board.c
+++ b/board/gumstix/pepper/board.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Board functions for Gumstix Pepper and AM335x-based boards
  *
  * Copyright (C) 2014, Gumstix, Incorporated - http://www.gumstix.com/
  * Based on board/ti/am335x/board.c from Texas Instruments, Inc.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/board/gumstix/pepper/board.h b/board/gumstix/pepper/board.h
index a6df3196f4..e3870d698f 100644
--- a/board/gumstix/pepper/board.h
+++ b/board/gumstix/pepper/board.h
@@ -1,9 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Gumstix Pepper and AM335x-based boards information header
  *
  * Copyright (C) 2014, Gumstix, Inc. - http://www.gumstix.com/
- *
- * SPDX-License-Identifier:     GPL-2.0+
  */
 
 #ifndef _BOARD_H_
diff --git a/board/gumstix/pepper/mux.c b/board/gumstix/pepper/mux.c
index 92c73f8df8..046e72029c 100644
--- a/board/gumstix/pepper/mux.c
+++ b/board/gumstix/pepper/mux.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Muxing for Gumstix Pepper and AM335x-based boards
  *
  * Copyright (C) 2014, Gumstix, Incorporated - http://www.gumstix.com/
- *
- * SPDX-License-Identifier:     GPL-2.0+
  */
 #include <common.h>
 #include <asm/arch/sys_proto.h>