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/board/freescale/t104xrdb/Makefile b/board/freescale/t104xrdb/Makefile
index b9ef17f..31abbd9 100644
--- a/board/freescale/t104xrdb/Makefile
+++ b/board/freescale/t104xrdb/Makefile
@@ -1,8 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0+
 #
 # Copyright 2013 Freescale Semiconductor, Inc.
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
 
 ifdef CONFIG_SPL_BUILD
 obj-y += spl.o
diff --git a/board/freescale/t104xrdb/cpld.c b/board/freescale/t104xrdb/cpld.c
index 95ff6a7..f9c8ab3 100644
--- a/board/freescale/t104xrdb/cpld.c
+++ b/board/freescale/t104xrdb/cpld.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /**
  * Copyright 2014 Freescale Semiconductor
  *
- * SPDX-License-Identifier:	GPL-2.0+
- *
  * This file provides support for the board-specific CPLD used on some Freescale
  * reference boards.
  *
diff --git a/board/freescale/t104xrdb/cpld.h b/board/freescale/t104xrdb/cpld.h
index 7adf5e4..a816aef 100644
--- a/board/freescale/t104xrdb/cpld.h
+++ b/board/freescale/t104xrdb/cpld.h
@@ -1,8 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /**
  * Copyright 2013 Freescale Semiconductor
  *
- * SPDX-License-Identifier:	GPL-2.0+
- *
  * This file provides support for the ngPIXIS, a board-specific FPGA used on
  * some Freescale reference boards.
  */
diff --git a/board/freescale/t104xrdb/ddr.c b/board/freescale/t104xrdb/ddr.c
index 4e55844..2b1b28d 100644
--- a/board/freescale/t104xrdb/ddr.c
+++ b/board/freescale/t104xrdb/ddr.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright 2013 Freescale Semiconductor, Inc.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/board/freescale/t104xrdb/ddr.h b/board/freescale/t104xrdb/ddr.h
index 012991c..319fc59 100644
--- a/board/freescale/t104xrdb/ddr.h
+++ b/board/freescale/t104xrdb/ddr.h
@@ -1,7 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright 2013 Freescale Semiconductor, Inc.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef __DDR_H__
diff --git a/board/freescale/t104xrdb/diu.c b/board/freescale/t104xrdb/diu.c
index 3285bef..aa56b8e 100644
--- a/board/freescale/t104xrdb/diu.c
+++ b/board/freescale/t104xrdb/diu.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright 2014 Freescale Semiconductor, Inc.
  * Author: Priyanka Jain <Priyanka.Jain@freescale.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <asm/io.h>
diff --git a/board/freescale/t104xrdb/eth.c b/board/freescale/t104xrdb/eth.c
index ab8c8bb..107d28d 100644
--- a/board/freescale/t104xrdb/eth.c
+++ b/board/freescale/t104xrdb/eth.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright 2014 Freescale Semiconductor, Inc.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/board/freescale/t104xrdb/law.c b/board/freescale/t104xrdb/law.c
index c847df1..0f6b71a 100644
--- a/board/freescale/t104xrdb/law.c
+++ b/board/freescale/t104xrdb/law.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright 2013 Freescale Semiconductor, Inc.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/board/freescale/t104xrdb/pci.c b/board/freescale/t104xrdb/pci.c
index 68ee74b..9fd6659 100644
--- a/board/freescale/t104xrdb/pci.c
+++ b/board/freescale/t104xrdb/pci.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright 2013 Freescale Semiconductor, Inc.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/board/freescale/t104xrdb/spl.c b/board/freescale/t104xrdb/spl.c
index 4fb9323..58a7376 100644
--- a/board/freescale/t104xrdb/spl.c
+++ b/board/freescale/t104xrdb/spl.c
@@ -1,6 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0+
 /* Copyright 2013 Freescale Semiconductor, Inc.
- *
- * SPDX-License-Identifier:    GPL-2.0+
  */
 
 #include <common.h>
diff --git a/board/freescale/t104xrdb/t104xrdb.c b/board/freescale/t104xrdb/t104xrdb.c
index 2818cdf..c9557b4 100644
--- a/board/freescale/t104xrdb/t104xrdb.c
+++ b/board/freescale/t104xrdb/t104xrdb.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright 2013 Freescale Semiconductor, Inc.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/board/freescale/t104xrdb/t104xrdb.h b/board/freescale/t104xrdb/t104xrdb.h
index e7cc0c7..b6459cd 100644
--- a/board/freescale/t104xrdb/t104xrdb.h
+++ b/board/freescale/t104xrdb/t104xrdb.h
@@ -1,7 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright 2013 Freescale Semiconductor, Inc.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef __T104x_RDB_H__
diff --git a/board/freescale/t104xrdb/tlb.c b/board/freescale/t104xrdb/tlb.c
index 0789479..6511c04 100644
--- a/board/freescale/t104xrdb/tlb.c
+++ b/board/freescale/t104xrdb/tlb.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright 2013 Freescale Semiconductor, Inc.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>