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-rw-r--r--arch/mips/include/asm/dma.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/mips/include/asm/dma.h b/arch/mips/include/asm/dma.h
index 1353c81..2d47da6 100644
--- a/arch/mips/include/asm/dma.h
+++ b/arch/mips/include/asm/dma.h
@@ -91,7 +91,10 @@
#define MAX_DMA_ADDRESS (PAGE_OFFSET + 0x01000000)
#endif
#define MAX_DMA_PFN PFN_DOWN(virt_to_phys((void *)MAX_DMA_ADDRESS))
+
+#ifndef MAX_DMA32_PFN
#define MAX_DMA32_PFN (1UL << (32 - PAGE_SHIFT))
+#endif
/* 8237 DMA controllers */
#define IO_DMA1_BASE 0x00 /* 8 bit slave DMA, channels 0..3 */