| Michal Simek | 69b1b78 | 2009-03-27 14:25:35 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2006 Atmark Techno, Inc. |
| 3 | * |
| 4 | * This file is subject to the terms and conditions of the GNU General Public |
| 5 | * License. See the file "COPYING" in the main directory of this archive |
| 6 | * for more details. |
| 7 | */ |
| 8 | |
| 9 | #ifndef _ASM_MICROBLAZE_DMA_H |
| 10 | #define _ASM_MICROBLAZE_DMA_H |
| 11 | |
| Michal Simek | dcffc1b | 2009-05-26 16:30:29 +0200 | [diff] [blame] | 12 | #ifndef CONFIG_MMU |
| Michal Simek | 69b1b78 | 2009-03-27 14:25:35 +0100 | [diff] [blame] | 13 | /* we don't have dma address limit. define it as zero to be |
| 14 | * unlimited. */ |
| 15 | #define MAX_DMA_ADDRESS (0) |
| Michal Simek | dcffc1b | 2009-05-26 16:30:29 +0200 | [diff] [blame] | 16 | #else |
| 17 | /* Virtual address corresponding to last available physical memory address. */ |
| 18 | #define MAX_DMA_ADDRESS (CONFIG_KERNEL_START + memory_size - 1) |
| 19 | #endif |
| Michal Simek | 69b1b78 | 2009-03-27 14:25:35 +0100 | [diff] [blame] | 20 | |
| 21 | #endif /* _ASM_MICROBLAZE_DMA_H */ |