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, 6 insertions, 13 deletions

diff --git a/examples/api/Makefile b/examples/api/Makefile
index 9068727..476ca71 100644
--- a/examples/api/Makefile
+++ b/examples/api/Makefile
@@ -1,8 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0+
 #
 # (C) Copyright 2007 Semihalf
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
 
 # Provide symbol API_BUILD to signal that the API example is being built.
 KBUILD_CPPFLAGS += -DAPI_BUILD
diff --git a/examples/api/crt0.S b/examples/api/crt0.S
index 5a7049d..57bba9d 100644
--- a/examples/api/crt0.S
+++ b/examples/api/crt0.S
@@ -1,9 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * (C) Copyright 2007 Semihalf
  *
  * Written by: Rafal Jaworowski <raj@semihalf.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #if defined(CONFIG_PPC)
diff --git a/examples/api/demo.c b/examples/api/demo.c
index 8c30457..e177bf1 100644
--- a/examples/api/demo.c
+++ b/examples/api/demo.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2007-2008 Semihalf
  *
  * Written by: Rafal Jaworowski <raj@semihalf.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/examples/api/glue.c b/examples/api/glue.c
index 575c1e5..9c8ed8d 100644
--- a/examples/api/glue.c
+++ b/examples/api/glue.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2007-2008 Semihalf, Rafal Jaworowski <raj@semihalf.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/examples/api/glue.h b/examples/api/glue.h
index 91c8c1c..f974560 100644
--- a/examples/api/glue.h
+++ b/examples/api/glue.h
@@ -1,9 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * (C) Copyright 2007 Semihalf
  *
  * Written by: Rafal Jaworowski <raj@semihalf.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 /*
diff --git a/examples/api/libgenwrap.c b/examples/api/libgenwrap.c
index ba51007..67b2d64 100644
--- a/examples/api/libgenwrap.c
+++ b/examples/api/libgenwrap.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2007 Semihalf
  *
  * Written by: Rafal Jaworowski <raj@semihalf.com>
  *
- * SPDX-License-Identifier:	GPL-2.0+
- *
  * This is is a set of wrappers/stubs that allow to use certain routines from
  * U-Boot's lib in the standalone app. This way way we can re-use
  * existing code e.g. operations on strings and similar.