diff options
Diffstat (limited to 'include/asm-arm/hardware/memc.h')
| -rw-r--r-- | include/asm-arm/hardware/memc.h | 26 |
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 |