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>

14 files changed, 14 insertions, 28 deletions

diff --git a/drivers/clk/at91/clk-generated.c b/drivers/clk/at91/clk-generated.c
index 2aacbaef0c0..70b277e26f7 100644
--- a/drivers/clk/at91/clk-generated.c
+++ b/drivers/clk/at91/clk-generated.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2016 Atmel Corporation
  *               Wenyou.Yang <wenyou.yang@atmel.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/clk/at91/clk-h32mx.c b/drivers/clk/at91/clk-h32mx.c
index dcc64fbd6d1..485a023bfd3 100644
--- a/drivers/clk/at91/clk-h32mx.c
+++ b/drivers/clk/at91/clk-h32mx.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2016 Atmel Corporation
  *               Wenyou.Yang <wenyou.yang@atmel.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/clk/at91/clk-main.c b/drivers/clk/at91/clk-main.c
index a234ce8b7e2..b31a1cb6828 100644
--- a/drivers/clk/at91/clk-main.c
+++ b/drivers/clk/at91/clk-main.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2016 Atmel Corporation
  *               Wenyou.Yang <wenyou.yang@atmel.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/clk/at91/clk-master.c b/drivers/clk/at91/clk-master.c
index 6bc78bad0dd..4fa33c4715c 100644
--- a/drivers/clk/at91/clk-master.c
+++ b/drivers/clk/at91/clk-master.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2016 Atmel Corporation
  *               Wenyou.Yang <wenyou.yang@atmel.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/clk/at91/clk-peripheral.c b/drivers/clk/at91/clk-peripheral.c
index 212a30bd5ea..c880af8155f 100644
--- a/drivers/clk/at91/clk-peripheral.c
+++ b/drivers/clk/at91/clk-peripheral.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2016 Atmel Corporation
  *               Wenyou.Yang <wenyou.yang@atmel.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/clk/at91/clk-plla.c b/drivers/clk/at91/clk-plla.c
index f5b2ca16734..79d725819fc 100644
--- a/drivers/clk/at91/clk-plla.c
+++ b/drivers/clk/at91/clk-plla.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2016 Atmel Corporation
  *               Wenyou.Yang <wenyou.yang@atmel.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/clk/at91/clk-plladiv.c b/drivers/clk/at91/clk-plladiv.c
index 520fd13f63a..ca6158ef6ab 100644
--- a/drivers/clk/at91/clk-plladiv.c
+++ b/drivers/clk/at91/clk-plladiv.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2018 Microhip / Atmel Corporation
  *               Wenyou.Yang <wenyou.yang@microchip.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/clk/at91/clk-slow.c b/drivers/clk/at91/clk-slow.c
index f18f002bea1..1f8665768b0 100644
--- a/drivers/clk/at91/clk-slow.c
+++ b/drivers/clk/at91/clk-slow.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2016 Atmel Corporation
  *               Wenyou.Yang <wenyou.yang@atmel.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/clk/at91/clk-system.c b/drivers/clk/at91/clk-system.c
index 81fe47a9d7b..f9adef2eaac 100644
--- a/drivers/clk/at91/clk-system.c
+++ b/drivers/clk/at91/clk-system.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2016 Atmel Corporation
  *               Wenyou.Yang <wenyou.yang@atmel.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/clk/at91/clk-usb.c b/drivers/clk/at91/clk-usb.c
index 36622c09dc8..24af183b550 100644
--- a/drivers/clk/at91/clk-usb.c
+++ b/drivers/clk/at91/clk-usb.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2018 Microhip / Atmel Corporation
  *               Wenyou.Yang <wenyou.yang@microchip.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/clk/at91/clk-utmi.c b/drivers/clk/at91/clk-utmi.c
index 54970b949fa..0b562610a2e 100644
--- a/drivers/clk/at91/clk-utmi.c
+++ b/drivers/clk/at91/clk-utmi.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2016 Atmel Corporation
  *               Wenyou.Yang <wenyou.yang@atmel.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/clk/at91/pmc.c b/drivers/clk/at91/pmc.c
index be1d11ed4e0..7cfbabc96d3 100644
--- a/drivers/clk/at91/pmc.c
+++ b/drivers/clk/at91/pmc.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2016 Atmel Corporation
  *               Wenyou.Yang <wenyou.yang@atmel.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/clk/at91/pmc.h b/drivers/clk/at91/pmc.h
index 5abda764a22..517ba1d6b45 100644
--- a/drivers/clk/at91/pmc.h
+++ b/drivers/clk/at91/pmc.h
@@ -1,8 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (C) 2016 Atmel Corporation
  *               Wenyou.Yang <wenyou.yang@atmel.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef __AT91_PMC_H__
diff --git a/drivers/clk/at91/sckc.c b/drivers/clk/at91/sckc.c
index de8013e40a0..a879b008ffd 100644
--- a/drivers/clk/at91/sckc.c
+++ b/drivers/clk/at91/sckc.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2016 Atmel Corporation
  *               Wenyou.Yang <wenyou.yang@atmel.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>