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d2912cb1 | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
1da177e4 | 2 | /* |
4baa9922 | 3 | * arch/arm/include/asm/hardware/memc.h |
1da177e4 LT |
4 | * |
5 | * Copyright (C) Russell King. | |
1da177e4 LT |
6 | */ |
7 | #define VDMA_ALIGNMENT PAGE_SIZE | |
8 | #define VDMA_XFERSIZE 16 | |
9 | #define VDMA_INIT 0 | |
10 | #define VDMA_START 1 | |
11 | #define VDMA_END 2 | |
12 | ||
13 | #ifndef __ASSEMBLY__ | |
14 | extern void memc_write(unsigned int reg, unsigned long val); | |
15 | ||
16 | #define video_set_dma(start,end,offset) \ | |
17 | do { \ | |
18 | memc_write (VDMA_START, (start >> 2)); \ | |
19 | memc_write (VDMA_END, (end - VDMA_XFERSIZE) >> 2); \ | |
20 | memc_write (VDMA_INIT, (offset >> 2)); \ | |
21 | } while (0) | |
22 | ||
23 | #endif |