linux/include/asm-arm/arch-ebsa285/dma.h
Linus Torvalds 1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00

31 lines
672 B
C

/*
* linux/include/asm-arm/arch-ebsa285/dma.h
*
* Architecture DMA routines
*
* Copyright (C) 1998,1999 Russell King
* Copyright (C) 1998,1999 Philip Blundell
*/
#ifndef __ASM_ARCH_DMA_H
#define __ASM_ARCH_DMA_H
/*
* This is the maximum DMA address that can be DMAd to.
*/
#define MAX_DMA_ADDRESS 0xffffffff
/*
* The 21285 has two internal DMA channels; we call these 8 and 9.
* On CATS hardware we have an additional eight ISA dma channels
* numbered 0..7.
*/
#define _ISA_DMA(x) (0+(x))
#define _DC21285_DMA(x) (8+(x))
#define MAX_DMA_CHANNELS 10
#define DMA_FLOPPY _ISA_DMA(2)
#define DMA_ISA_CASCADE _ISA_DMA(4)
#endif /* _ASM_ARCH_DMA_H */