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