diff options
Diffstat (limited to 'arch/microblaze')
| -rw-r--r-- | arch/microblaze/include/asm/dma.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/microblaze/include/asm/dma.h b/arch/microblaze/include/asm/dma.h index 0967fa04fc5e..08c073badf19 100644 --- a/arch/microblaze/include/asm/dma.h +++ b/arch/microblaze/include/asm/dma.h | |||
| @@ -9,8 +9,13 @@ | |||
| 9 | #ifndef _ASM_MICROBLAZE_DMA_H | 9 | #ifndef _ASM_MICROBLAZE_DMA_H |
| 10 | #define _ASM_MICROBLAZE_DMA_H | 10 | #define _ASM_MICROBLAZE_DMA_H |
| 11 | 11 | ||
| 12 | #ifndef CONFIG_MMU | ||
| 12 | /* we don't have dma address limit. define it as zero to be | 13 | /* we don't have dma address limit. define it as zero to be |
| 13 | * unlimited. */ | 14 | * unlimited. */ |
| 14 | #define MAX_DMA_ADDRESS (0) | 15 | #define MAX_DMA_ADDRESS (0) |
| 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 | ||
| 15 | 20 | ||
| 16 | #endif /* _ASM_MICROBLAZE_DMA_H */ | 21 | #endif /* _ASM_MICROBLAZE_DMA_H */ |