1*4baa9922SRussell King /* 2*4baa9922SRussell King * arch/arm/include/asm/hardware/memc.h 3*4baa9922SRussell King * 4*4baa9922SRussell King * Copyright (C) Russell King. 5*4baa9922SRussell King * 6*4baa9922SRussell King * This program is free software; you can redistribute it and/or modify 7*4baa9922SRussell King * it under the terms of the GNU General Public License version 2 as 8*4baa9922SRussell King * published by the Free Software Foundation. 9*4baa9922SRussell King */ 10*4baa9922SRussell King #define VDMA_ALIGNMENT PAGE_SIZE 11*4baa9922SRussell King #define VDMA_XFERSIZE 16 12*4baa9922SRussell King #define VDMA_INIT 0 13*4baa9922SRussell King #define VDMA_START 1 14*4baa9922SRussell King #define VDMA_END 2 15*4baa9922SRussell King 16*4baa9922SRussell King #ifndef __ASSEMBLY__ 17*4baa9922SRussell King extern void memc_write(unsigned int reg, unsigned long val); 18*4baa9922SRussell King 19*4baa9922SRussell King #define video_set_dma(start,end,offset) \ 20*4baa9922SRussell King do { \ 21*4baa9922SRussell King memc_write (VDMA_START, (start >> 2)); \ 22*4baa9922SRussell King memc_write (VDMA_END, (end - VDMA_XFERSIZE) >> 2); \ 23*4baa9922SRussell King memc_write (VDMA_INIT, (offset >> 2)); \ 24*4baa9922SRussell King } while (0) 25*4baa9922SRussell King 26*4baa9922SRussell King #endif 27