xref: /linux/arch/arm/mach-footbridge/include/mach/isa-dma.h (revision ca55b2fef3a9373fcfc30f82fd26bc7fccbda732)
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 */
26