| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | * This is the maximum DMA address that can be DMAd to. |
| 14 | */ |
| 15 | #define MAX_DMA_ADDRESS 0xffffffff |
| 16 | |
| 17 | /* |
| 18 | * The 21285 has two internal DMA channels; we call these 8 and 9. |
| 19 | * On CATS hardware we have an additional eight ISA dma channels |
| 20 | * numbered 0..7. |
| 21 | */ |
| 22 | #define _ISA_DMA(x) (0+(x)) |
| 23 | #define _DC21285_DMA(x) (8+(x)) |
| 24 | |
| 25 | #define MAX_DMA_CHANNELS 10 |
| 26 | |
| 27 | #define DMA_FLOPPY _ISA_DMA(2) |
| 28 | #define DMA_ISA_CASCADE _ISA_DMA(4) |
| 29 | |
| 30 | #endif /* _ASM_ARCH_DMA_H */ |