Linux Kernel  3.7.1
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memc.h
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1 /*
2  * arch/arm/include/asm/hardware/memc.h
3  *
4  * Copyright (C) Russell King.
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License version 2 as
8  * published by the Free Software Foundation.
9  */
10 #define VDMA_ALIGNMENT PAGE_SIZE
11 #define VDMA_XFERSIZE 16
12 #define VDMA_INIT 0
13 #define VDMA_START 1
14 #define VDMA_END 2
15 
16 #ifndef __ASSEMBLY__
17 extern void memc_write(unsigned int reg, unsigned long val);
18 
19 #define video_set_dma(start,end,offset) \
20 do { \
21  memc_write (VDMA_START, (start >> 2)); \
22  memc_write (VDMA_END, (end - VDMA_XFERSIZE) >> 2); \
23  memc_write (VDMA_INIT, (offset >> 2)); \
24 } while (0)
25 
26 #endif