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isa-dma.h
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1 /*
2  * arch/arm/mach-footbridge/include/mach/isa-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  * The 21285 has two internal DMA channels; we call these 8 and 9.
14  * On CATS hardware we have an additional eight ISA dma channels
15  * numbered 0..7.
16  */
17 #define _ISA_DMA(x) (0+(x))
18 #define _DC21285_DMA(x) (8+(x))
19 
20 #define MAX_DMA_CHANNELS 10
21 
22 #define DMA_FLOPPY _ISA_DMA(2)
23 #define DMA_ISA_CASCADE _ISA_DMA(4)
24 
25 #endif /* _ASM_ARCH_DMA_H */