tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * linux/include/asm-arm/arch-ebsa285/dma.h
3 *
4 * Architecture DMA routines
5 *
6 * Copyright (C) 1998,1999 Russell King
7 * Copyright (C) 1998,1999 Philip Blundell
8 */
9#ifndef __ASM_ARCH_DMA_H
10#define __ASM_ARCH_DMA_H
11
12/*
13 * This is the maximum DMA address that can be DMAd to.
14 */
15#define MAX_DMA_ADDRESS 0xffffffff
16
17/*
18 * The 21285 has two internal DMA channels; we call these 8 and 9.
19 * On CATS hardware we have an additional eight ISA dma channels
20 * numbered 0..7.
21 */
22#define _ISA_DMA(x) (0+(x))
23#define _DC21285_DMA(x) (8+(x))
24
25#define MAX_DMA_CHANNELS 10
26
27#define DMA_FLOPPY _ISA_DMA(2)
28#define DMA_ISA_CASCADE _ISA_DMA(4)
29
30#endif /* _ASM_ARCH_DMA_H */