|  | /* | 
|  | *  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 |