diff --git a/arch/mn10300/include/asm/dma-mapping.h b/arch/mn10300/include/asm/dma-mapping.h
index 737ef574b3eae5faf0e59970a7427f8138b65a40..dc24163b190f46f2483d018d56ec2a57da6255f6 100644
--- a/arch/mn10300/include/asm/dma-mapping.h
+++ b/arch/mn10300/include/asm/dma-mapping.h
@@ -11,9 +11,6 @@
 #ifndef _ASM_DMA_MAPPING_H
 #define _ASM_DMA_MAPPING_H
 
-#include <asm/cache.h>
-#include <asm/io.h>
-
 extern const struct dma_map_ops mn10300_dma_ops;
 
 static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
@@ -25,7 +22,6 @@ static inline
 void dma_cache_sync(void *vaddr, size_t size,
 		    enum dma_data_direction direction)
 {
-	mn10300_dcache_flush_inv();
 }
 
 #endif