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/drivers/ata/Makefile b/drivers/ata/Makefile
index a94c804..02f02c8 100644
--- a/drivers/ata/Makefile
+++ b/drivers/ata/Makefile
@@ -1,9 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0+
 #
 # (C) Copyright 2000-2007
 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
 
 obj-$(CONFIG_DWC_AHCI) += dwc_ahci.o
 obj-$(CONFIG_AHCI) += ahci-uclass.o
diff --git a/drivers/ata/ahci-pci.c b/drivers/ata/ahci-pci.c
index 5a45edc..1ca439d 100644
--- a/drivers/ata/ahci-pci.c
+++ b/drivers/ata/ahci-pci.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2017, Bin Meng <bmeng.cn@gmail.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/ata/ahci-uclass.c b/drivers/ata/ahci-uclass.c
index 71600fe..42bbff9 100644
--- a/drivers/ata/ahci-uclass.c
+++ b/drivers/ata/ahci-uclass.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (c) 2015 Google, Inc
  * Written by Simon Glass <sjg@chromium.org>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 690d35c..c35912b 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) Freescale Semiconductor, Inc. 2006.
  * Author: Jason Jin<Jason.jin@freescale.com>
  *         Zhang Wei<wei.zhang@freescale.com>
  *
- * SPDX-License-Identifier:	GPL-2.0+
- *
  * with the reference on libata and ahci drvier in kernel
  *
  * This driver provides a SCSI interface to SATA.
diff --git a/drivers/ata/dwc_ahci.c b/drivers/ata/dwc_ahci.c
index bb45214..017650a 100644
--- a/drivers/ata/dwc_ahci.c
+++ b/drivers/ata/dwc_ahci.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * DWC SATA platform driver
  *
@@ -5,8 +6,6 @@
  *     Texas Instruments Incorporated, <www.ti.com>
  *
  * Author: Mugunthan V N <mugunthanvnm@ti.com>
- *
- * SPDX-License-Identifier:     GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/ata/dwc_ahsata.c b/drivers/ata/dwc_ahsata.c
index 480ae11..4c5b984 100644
--- a/drivers/ata/dwc_ahsata.c
+++ b/drivers/ata/dwc_ahsata.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2010-2011 Freescale Semiconductor, Inc.
  * Terry Lv <r65388@freescale.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/ata/dwc_ahsata_priv.h b/drivers/ata/dwc_ahsata_priv.h
index 6089c0b..5b0579a 100644
--- a/drivers/ata/dwc_ahsata_priv.h
+++ b/drivers/ata/dwc_ahsata_priv.h
@@ -1,8 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (C) 2010 Freescale Semiconductor, Inc.
  * Terry Lv <r65388@freescale.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef __DWC_AHSATA_PRIV_H__
diff --git a/drivers/ata/fsl_sata.c b/drivers/ata/fsl_sata.c
index 31f7fab..e70a515 100644
--- a/drivers/ata/fsl_sata.c
+++ b/drivers/ata/fsl_sata.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2008,2010 Freescale Semiconductor, Inc.
  *		Dave Liu <daveliu@freescale.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/ata/fsl_sata.h b/drivers/ata/fsl_sata.h
index 18d679e..1e2da10 100644
--- a/drivers/ata/fsl_sata.h
+++ b/drivers/ata/fsl_sata.h
@@ -1,8 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (C) 2007-2008 Freescale Semiconductor, Inc.
  *		Dave Liu <daveliu@freescale.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef __FSL_SATA_H__
diff --git a/drivers/ata/libata.c b/drivers/ata/libata.c
index d684270..d41200f 100644
--- a/drivers/ata/libata.c
+++ b/drivers/ata/libata.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2008 Freescale Semiconductor, Inc.
  *		Dave Liu <daveliu@freescale.com>
  *		port from the libata of linux kernel
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <libata.h>
diff --git a/drivers/ata/mvsata_ide.c b/drivers/ata/mvsata_ide.c
index 7b6a155..3818123 100644
--- a/drivers/ata/mvsata_ide.c
+++ b/drivers/ata/mvsata_ide.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2010 Albert ARIBAUD <albert.u.boot@aribaud.net>
  *
  * Written-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/ata/sata.c b/drivers/ata/sata.c
index b3ebc05..e384b80 100644
--- a/drivers/ata/sata.c
+++ b/drivers/ata/sata.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2000-2005, DENX Software Engineering
  *		Wolfgang Denk <wd@denx.de>
@@ -6,8 +7,6 @@
  *			<mushtaqk_921@yahoo.co.in>
  * Copyright (C) 2008 Freescale Semiconductor, Inc.
  *		Dave Liu <daveliu@freescale.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/ata/sata_ceva.c b/drivers/ata/sata_ceva.c
index bae2689..1544097 100644
--- a/drivers/ata/sata_ceva.c
+++ b/drivers/ata/sata_ceva.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2015 - 2016 Xilinx, Inc.
  * Michal Simek <michal.simek@xilinx.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 #include <common.h>
 #include <dm.h>
diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c
index 78e3da4..a168196 100644
--- a/drivers/ata/sata_mv.c
+++ b/drivers/ata/sata_mv.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) Excito Elektronik i Skåne AB, 2010.
  * Author: Tor Krill <tor@excito.com>
  *
  * Copyright (C) 2015 Stefan Roese <sr@denx.de>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 /*
diff --git a/drivers/ata/sata_sandbox.c b/drivers/ata/sata_sandbox.c
index bd967d2..a28ac56 100644
--- a/drivers/ata/sata_sandbox.c
+++ b/drivers/ata/sata_sandbox.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2015 Google, Inc
  * Written by Simon Glass <sjg@chromium.org>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/ata/sata_sil.c b/drivers/ata/sata_sil.c
index daff7d4..a8598d9 100644
--- a/drivers/ata/sata_sil.c
+++ b/drivers/ata/sata_sil.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2011 Freescale Semiconductor, Inc.
  * Author: Tang Yuantian <b29983@freescale.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/ata/sata_sil.h b/drivers/ata/sata_sil.h
index 55954ef..8b7cbdf 100644
--- a/drivers/ata/sata_sil.h
+++ b/drivers/ata/sata_sil.h
@@ -1,8 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (C) 2011 Freescale Semiconductor, Inc.
  * Author: Tang Yuantian <b29983@freescale.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef SATA_SIL3132_H
diff --git a/drivers/ata/sata_sil3114.c b/drivers/ata/sata_sil3114.c
index 61ffb66..4163574 100644
--- a/drivers/ata/sata_sil3114.c
+++ b/drivers/ata/sata_sil3114.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) Excito Elektronik i Skåne AB, All rights reserved.
  * Author: Tor Krill <tor@excito.com>
  *
- * SPDX-License-Identifier:	GPL-2.0+
- *
  * This is a driver for Silicon Image sil3114 sata chip modelled on
  * the ata_piix driver
  */
diff --git a/drivers/ata/sata_sil3114.h b/drivers/ata/sata_sil3114.h
index 091fca1..a336eb5 100644
--- a/drivers/ata/sata_sil3114.h
+++ b/drivers/ata/sata_sil3114.h
@@ -1,8 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (C) Excito Elektronik i Skåne AB, All rights reserved.
  * Author: Tor Krill <tor@excito.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef SATA_SIL3114_H