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authorMichal Simek <monstr@monstr.eu>2009-05-26 16:30:29 +0200
committerMichal Simek <monstr@monstr.eu>2009-05-26 16:45:22 +0200
commitdcffc1b29115cc26686b8ae62b587e63f0e139f0 (patch)
tree187d9b097c146004d91f192017321f9c286c5506 /arch
parent46fb9be93b15bd8315622ad2f85f9516c064a785 (diff)
microblaze_mmu_v2: Update dma.h for MMU
Signed-off-by: Michal Simek <monstr@monstr.eu>
Diffstat (limited to 'arch')
-rw-r--r--arch/microblaze/include/asm/dma.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/microblaze/include/asm/dma.h b/arch/microblaze/include/asm/dma.h
index 0967fa04fc5..08c073badf1 100644
--- a/arch/microblaze/include/asm/dma.h
+++ b/arch/microblaze/include/asm/dma.h
@@ -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 */