Files
Linux_Drivers/linux_5.10/arch/arm/include/asm/hardware/memc.h
sam.xiang 5c7dd7acc3 [linux] create linux_5.10.4 from T-head official:
repo: https://github.com/T-head-Semi/linux
	commit: b1313fe517ca3703119dcc99ef3bbf75ab42bcfb

Change-Id: I6cbb35294024ea3a66140e311f4bb705fd7fd626
2023-03-10 20:32:41 +08:00

24 lines
550 B
C

/* SPDX-License-Identifier: GPL-2.0-only */
/*
* arch/arm/include/asm/hardware/memc.h
*
* Copyright (C) Russell King.
*/
#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