diff --git a/drivers/dma/sh/Kconfig b/drivers/dma/sh/Kconfig
index 6e0685f..1c46754 100644
--- a/drivers/dma/sh/Kconfig
+++ b/drivers/dma/sh/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # DMA engine configuration for sh
 #
diff --git a/drivers/dma/sh/shdma-arm.h b/drivers/dma/sh/shdma-arm.h
index a1b0ef4..30bcfe3 100644
--- a/drivers/dma/sh/shdma-arm.h
+++ b/drivers/dma/sh/shdma-arm.h
@@ -1,11 +1,8 @@
-/*
+/* SPDX-License-Identifier: GPL-2.0
+ *
  * Renesas SuperH DMA Engine support
  *
  * Copyright (C) 2013 Renesas Electronics, Inc.
- *
- * This is free software; you can redistribute it and/or modify it under the
- * terms of version 2 the GNU General Public License as published by the Free
- * Software Foundation.
  */
 
 #ifndef SHDMA_ARM_H
diff --git a/drivers/dma/sh/shdma-base.c b/drivers/dma/sh/shdma-base.c
index 6b5626e..c51de49 100644
--- a/drivers/dma/sh/shdma-base.c
+++ b/drivers/dma/sh/shdma-base.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Dmaengine driver base library for DMA controllers, found on SH-based SoCs
  *
@@ -7,10 +8,6 @@
  * Copyright (C) 2009 Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
  * Copyright (C) 2009 Renesas Solutions, Inc. All rights reserved.
  * Copyright (C) 2007 Freescale Semiconductor, Inc. All rights reserved.
- *
- * This is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
  */
 
 #include <linux/delay.h>
diff --git a/drivers/dma/sh/shdma-of.c b/drivers/dma/sh/shdma-of.c
index f999f9b..be89dd8 100644
--- a/drivers/dma/sh/shdma-of.c
+++ b/drivers/dma/sh/shdma-of.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * SHDMA Device Tree glue
  *
  * Copyright (C) 2013 Renesas Electronics Inc.
  * Author: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
- *
- * This is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
  */
 
 #include <linux/dmaengine.h>
diff --git a/drivers/dma/sh/shdma-r8a73a4.c b/drivers/dma/sh/shdma-r8a73a4.c
index 96ea382..ddc9a35 100644
--- a/drivers/dma/sh/shdma-r8a73a4.c
+++ b/drivers/dma/sh/shdma-r8a73a4.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Renesas SuperH DMA Engine support for r8a73a4 (APE6) SoCs
  *
  * Copyright (C) 2013 Renesas Electronics, Inc.
- *
- * This is free software; you can redistribute it and/or modify it under the
- * terms of version 2 the GNU General Public License as published by the Free
- * Software Foundation.
  */
 #include <linux/sh_dma.h>
 
diff --git a/drivers/dma/sh/shdma.h b/drivers/dma/sh/shdma.h
index 2c0a969..73aec72 100644
--- a/drivers/dma/sh/shdma.h
+++ b/drivers/dma/sh/shdma.h
@@ -1,14 +1,9 @@
-/*
+/* SPDX-License-Identifier: GPL-2.0+
+ *
  * Renesas SuperH DMA Engine support
  *
  * Copyright (C) 2009 Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
  * Copyright (C) 2009 Renesas Solutions, Inc. All rights reserved.
- *
- * This is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
  */
 #ifndef __DMA_SHDMA_H
 #define __DMA_SHDMA_H
diff --git a/drivers/dma/sh/shdmac.c b/drivers/dma/sh/shdmac.c
index 04a74e0..88b1eb8 100644
--- a/drivers/dma/sh/shdmac.c
+++ b/drivers/dma/sh/shdmac.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Renesas SuperH DMA Engine support
  *
@@ -8,14 +9,8 @@
  * Copyright (C) 2009 Renesas Solutions, Inc. All rights reserved.
  * Copyright (C) 2007 Freescale Semiconductor, Inc. All rights reserved.
  *
- * This is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
  * - DMA of SuperH does not have Hardware DMA chain mode.
  * - MAX DMA size is 16MB.
- *
  */
 
 #include <linux/delay.h>
diff --git a/drivers/dma/sh/sudmac.c b/drivers/dma/sh/sudmac.c
index 69b9564..30cc355 100644
--- a/drivers/dma/sh/sudmac.c
+++ b/drivers/dma/sh/sudmac.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Renesas SUDMAC support
  *
@@ -8,10 +9,6 @@
  * Copyright (C) 2009 Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
  * Copyright (C) 2009 Renesas Solutions, Inc. All rights reserved.
  * Copyright (C) 2007 Freescale Semiconductor, Inc. All rights reserved.
- *
- * This is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
  */
 
 #include <linux/dmaengine.h>
diff --git a/drivers/dma/sh/usb-dmac.c b/drivers/dma/sh/usb-dmac.c
index 1bb1a8e..7f7184c 100644
--- a/drivers/dma/sh/usb-dmac.c
+++ b/drivers/dma/sh/usb-dmac.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Renesas USB DMA Controller Driver
  *
@@ -6,10 +7,6 @@
  * based on rcar-dmac.c
  * Copyright (C) 2014 Renesas Electronics Inc.
  * Author: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
- *
- * This is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
  */
 
 #include <linux/delay.h>
diff --git a/include/linux/shdma-base.h b/include/linux/shdma-base.h
index d927647..6dfd05e 100644
--- a/include/linux/shdma-base.h
+++ b/include/linux/shdma-base.h
@@ -1,4 +1,5 @@
-/*
+/* SPDX-License-Identifier: GPL-2.0
+ *
  * Dmaengine driver base library for DMA controllers, found on SH-based SoCs
  *
  * extracted from shdma.c and headers
@@ -7,10 +8,6 @@
  * Copyright (C) 2009 Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
  * Copyright (C) 2009 Renesas Solutions, Inc. All rights reserved.
  * Copyright (C) 2007 Freescale Semiconductor, Inc. All rights reserved.
- *
- * This is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
  */
 
 #ifndef SHDMA_BASE_H
