31 lines
672 B
C
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 */
|