File-copy from v4.4.100

This is the result of 'cp' from a linux-stable tree with the 'v4.4.100'
tag checked out (commit 26d6298789e695c9f627ce49a7bbd2286405798a) on
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Please refer to that tree for all history prior to this point.

Change-Id: I8a9ee2aea93cd29c52c847d0ce33091a73ae6afe
diff --git a/arch/blackfin/mach-bf537/include/mach/dma.h b/arch/blackfin/mach-bf537/include/mach/dma.h
new file mode 100644
index 0000000..5ae83b1
--- /dev/null
+++ b/arch/blackfin/mach-bf537/include/mach/dma.h
@@ -0,0 +1,31 @@
+/* mach/dma.h - arch-specific DMA defines
+ *
+ * Copyright 2004-2008 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#ifndef _MACH_DMA_H_
+#define _MACH_DMA_H_
+
+#define MAX_DMA_CHANNELS 16
+
+#define CH_PPI 			    0
+#define CH_EMAC_RX 		    1
+#define CH_EMAC_TX 		    2
+#define CH_SPORT0_RX 		3
+#define CH_SPORT0_TX 		4
+#define CH_SPORT1_RX 		5
+#define CH_SPORT1_TX 		6
+#define CH_SPI 			    7
+#define CH_UART0_RX 		8
+#define CH_UART0_TX 		9
+#define CH_UART1_RX 		10
+#define CH_UART1_TX 		11
+
+#define CH_MEM_STREAM0_DEST	12	 /* TX */
+#define CH_MEM_STREAM0_SRC  	13	 /* RX */
+#define CH_MEM_STREAM1_DEST	14	 /* TX */
+#define CH_MEM_STREAM1_SRC 	15	 /* RX */
+
+#endif