1 files changed, 26 insertions, 0 deletions

diff --git a/include/asm-arm/hardware/memc.h b/include/asm-arm/hardware/memc.h
new file mode 100644
index 00000000000..8aef5aa0e01
--- /dev/null
+++ b/include/asm-arm/hardware/memc.h
@@ -0,0 +1,26 @@
+/*
+ *  linux/include/asm-arm/hardware/memc.h
+ *
+ *  Copyright (C) Russell King.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#define VDMA_ALIGNMENT  PAGE_SIZE
+#define VDMA_XFERSIZE   16
+#define VDMA_INIT       0
+#define VDMA_START      1
+#define VDMA_END        2
+
+#ifndef __ASSEMBLY__
+extern void memc_write(unsigned int reg, unsigned long val);
+
+#define video_set_dma(start,end,offset)                         \
+do {                                                            \
+        memc_write (VDMA_START, (start >> 2));                  \
+        memc_write (VDMA_END, (end - VDMA_XFERSIZE) >> 2);      \
+        memc_write (VDMA_INIT, (offset >> 2));                  \
+} while (0)
+
+#endif