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>

8 files changed, 8 insertions, 17 deletions

diff --git a/arch/arm/mach-imx/mx7/Makefile b/arch/arm/mach-imx/mx7/Makefile
index e6bef6acee..7a1ee7a944 100644
--- a/arch/arm/mach-imx/mx7/Makefile
+++ b/arch/arm/mach-imx/mx7/Makefile
@@ -1,9 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0+
 #
 # (C) Copyright 2015 Freescale Semiconductor, Inc.
 #
-# SPDX-License-Identifier:	GPL-2.0+
-#
-#
 
 obj-y	:= soc.o clock.o clock_slice.o ddr.o snvs.o
 
diff --git a/arch/arm/mach-imx/mx7/clock.c b/arch/arm/mach-imx/mx7/clock.c
index c11042d6f5..8cda71cf55 100644
--- a/arch/arm/mach-imx/mx7/clock.c
+++ b/arch/arm/mach-imx/mx7/clock.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2015 Freescale Semiconductor, Inc.
  *
  * Author:
  *	Peng Fan <Peng.Fan@freescale.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/arch/arm/mach-imx/mx7/clock_slice.c b/arch/arm/mach-imx/mx7/clock_slice.c
index 68a7005b2e..dd731d9496 100644
--- a/arch/arm/mach-imx/mx7/clock_slice.c
+++ b/arch/arm/mach-imx/mx7/clock_slice.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2015 Freescale Semiconductor, Inc.
  *
  * Author:
  *	Peng Fan <Peng.Fan@freescale.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/arch/arm/mach-imx/mx7/ddr.c b/arch/arm/mach-imx/mx7/ddr.c
index 9268ad9470..f19aeb8042 100644
--- a/arch/arm/mach-imx/mx7/ddr.c
+++ b/arch/arm/mach-imx/mx7/ddr.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * DDR controller configuration for the i.MX7 architecture
  *
  * (C) Copyright 2017 CompuLab, Ltd. http://www.compulab.com
  *
  * Author: Uri Mashiach <uri.mashiach@compulab.co.il>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <linux/types.h>
diff --git a/arch/arm/mach-imx/mx7/psci-mx7.c b/arch/arm/mach-imx/mx7/psci-mx7.c
index d5db51165f..7dc49bd444 100644
--- a/arch/arm/mach-imx/mx7/psci-mx7.c
+++ b/arch/arm/mach-imx/mx7/psci-mx7.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2015-2016 Freescale Semiconductor, Inc.
  * Copyright 2017 NXP
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <asm/io.h>
diff --git a/arch/arm/mach-imx/mx7/psci.S b/arch/arm/mach-imx/mx7/psci.S
index bc2cd8ae9a..c036dcb934 100644
--- a/arch/arm/mach-imx/mx7/psci.S
+++ b/arch/arm/mach-imx/mx7/psci.S
@@ -1,8 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (C) 2015-2016 Freescale Semiconductor, Inc.
  * Copyright 2017 NXP
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <config.h>
diff --git a/arch/arm/mach-imx/mx7/snvs.c b/arch/arm/mach-imx/mx7/snvs.c
index 7e649b8513..359bbbb41c 100644
--- a/arch/arm/mach-imx/mx7/snvs.c
+++ b/arch/arm/mach-imx/mx7/snvs.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright 2018 Linaro
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <asm/io.h>
diff --git a/arch/arm/mach-imx/mx7/soc.c b/arch/arm/mach-imx/mx7/soc.c
index 3ceeeffd99..f1dea66d60 100644
--- a/arch/arm/mach-imx/mx7/soc.c
+++ b/arch/arm/mach-imx/mx7/soc.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2015 Freescale Semiconductor, Inc.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>