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C/C++ Source or Header  |  2006-08-11  |  572 b   |  26 lines
  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.  * 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.