summaryrefslogtreecommitdiffstats
path: root/include/asm-arm/hardware/memc.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/asm-arm/hardware/memc.h')
-rw-r--r--include/asm-arm/hardware/memc.h26
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 000000000000..8aef5aa0e01b
--- /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