arch/arm/mach-footbridge/include/mach/isa-dma.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  *  arch/arm/mach-footbridge/include/mach/isa-dma.h
   4  *
   5  *  Architecture DMA routines
   6  *
   7  *  Copyright (C) 1998,1999 Russell King
   8  *  Copyright (C) 1998,1999 Philip Blundell
   9  */
  10 #ifndef __ASM_ARCH_DMA_H
  11 #define __ASM_ARCH_DMA_H
  12
  13 /*
  14  * The 21285 has two internal DMA channels; we call these 8 and 9.
  15  * On CATS hardware we have an additional eight ISA dma channels
  16  * numbered 0..7.
  17  */
  18 #define _ISA_DMA(x)             (0+(x))
  19 #define _DC21285_DMA(x)         (8+(x))
  20
  21 #define MAX_DMA_CHANNELS        10
  22
  23 #define DMA_FLOPPY              _ISA_DMA(2)
  24 #define DMA_ISA_CASCADE         _ISA_DMA(4)
  25
  26 #endif /* _ASM_ARCH_DMA_H */