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 */
31