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microblaze_mmu_v2: Update dma.h for MMU
Signed-off-by: Michal Simek <monstr@monstr.eu>
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@ -9,8 +9,13 @@
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#ifndef _ASM_MICROBLAZE_DMA_H
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#define _ASM_MICROBLAZE_DMA_H
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#ifndef CONFIG_MMU
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/* we don't have dma address limit. define it as zero to be
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* unlimited. */
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#define MAX_DMA_ADDRESS (0)
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#else
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/* Virtual address corresponding to last available physical memory address. */
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#define MAX_DMA_ADDRESS (CONFIG_KERNEL_START + memory_size - 1)
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#endif
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#endif /* _ASM_MICROBLAZE_DMA_H */
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