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kernel add
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/*
* arch/arm/include/asm/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
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