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 27