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Diffstat (limited to 'arch/nios2/include/asm/dma-mapping.h')
-rw-r--r--arch/nios2/include/asm/dma-mapping.h13
1 files changed, 7 insertions, 6 deletions
diff --git a/arch/nios2/include/asm/dma-mapping.h b/arch/nios2/include/asm/dma-mapping.h
index 620c207a03..5ecc1ed21e 100644
--- a/arch/nios2/include/asm/dma-mapping.h
+++ b/arch/nios2/include/asm/dma-mapping.h
@@ -14,24 +14,25 @@
*/
#if (DCACHE_SIZE != 0)
-static inline void *dma_alloc_coherent(size_t len, unsigned long *handle)
+static inline void *dma_alloc_coherent(size_t len, dma_addr_t *handle)
{
void *addr = malloc(len + DCACHE_LINE_SIZE);
if (!addr)
return 0;
flush_dcache_range((unsigned long)addr,(unsigned long)addr + len + DCACHE_LINE_SIZE);
- *handle = ((unsigned long)addr +
- (DCACHE_LINE_SIZE - 1)) &
- ~(DCACHE_LINE_SIZE - 1) & ~(IO_REGION_BASE);
+ if (handle)
+ *handle = ((dma_addr_t)addr + (DCACHE_LINE_SIZE - 1)) &
+ ~(DCACHE_LINE_SIZE - 1) & ~(IO_REGION_BASE);
return (void *)(*handle | IO_REGION_BASE);
}
#else
-static inline void *dma_alloc_coherent(size_t len, unsigned long *handle)
+static inline void *dma_alloc_coherent(size_t len, dma_addr_t *handle)
{
void *addr = malloc(len);
if (!addr)
return 0;
- *handle = (unsigned long)addr;
+ if (handle)
+ *handle = (dma_addr_t)addr;
return (void *)(*handle | IO_REGION_BASE);
}
#endif