LXR linux/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 */
  27