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microblaze_mmu_v2: Update dma.h for MMU 

Signed-off-by: Michal Simek <monstr@monstr.eu>
This commit is contained in:
Michal Simek 2009-05-26 16:30:29 +02:00
parent 46fb9be93b
commit dcffc1b291
1 changed files with 5 additions and 0 deletions
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5
arch/microblaze/include/asm/dma.h
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@ -9,8 +9,13 @@
#ifndef _ASM_MICROBLAZE_DMA_H
#define _ASM_MICROBLAZE_DMA_H
#ifndef CONFIG_MMU
/* we don't have dma address limit. define it as zero to be
* unlimited. */
#define MAX_DMA_ADDRESS (0)
#else
/* Virtual address corresponding to last available physical memory address. */
#define MAX_DMA_ADDRESS (CONFIG_KERNEL_START + memory_size - 1)
#endif
#endif /* _ASM_MICROBLAZE_DMA_H */