diff options
Diffstat (limited to 'include/asm-arm/arch-ebsa285/dma.h')
| -rw-r--r-- | include/asm-arm/arch-ebsa285/dma.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/include/asm-arm/arch-ebsa285/dma.h b/include/asm-arm/arch-ebsa285/dma.h new file mode 100644 index 000000000000..c43046eb8bc7 --- /dev/null +++ b/include/asm-arm/arch-ebsa285/dma.h @@ -0,0 +1,30 @@ +/* + * linux/include/asm-arm/arch-ebsa285/dma.h + * + * Architecture DMA routines + * + * Copyright (C) 1998,1999 Russell King + * Copyright (C) 1998,1999 Philip Blundell + */ +#ifndef __ASM_ARCH_DMA_H +#define __ASM_ARCH_DMA_H + +/* + * This is the maximum DMA address that can be DMAd to. + */ +#define MAX_DMA_ADDRESS 0xffffffff + +/* + * The 21285 has two internal DMA channels; we call these 8 and 9. + * On CATS hardware we have an additional eight ISA dma channels + * numbered 0..7. + */ +#define _ISA_DMA(x) (0+(x)) +#define _DC21285_DMA(x) (8+(x)) + +#define MAX_DMA_CHANNELS 10 + +#define DMA_FLOPPY _ISA_DMA(2) +#define DMA_ISA_CASCADE _ISA_DMA(4) + +#endif /* _ASM_ARCH_DMA_H */ |