diff --git a/arch/mn10300/include/asm/dma-mapping.h b/arch/mn10300/include/asm/dma-mapping.h
index c1be4397b1e..a18abfc558e 100644
--- a/arch/mn10300/include/asm/dma-mapping.h
+++ b/arch/mn10300/include/asm/dma-mapping.h
@@ -168,4 +168,19 @@ void dma_cache_sync(void *vaddr, size_t size,
 	mn10300_dcache_flush_inv();
 }
 
+/* Not supported for now */
+static inline int dma_mmap_coherent(struct device *dev,
+				    struct vm_area_struct *vma, void *cpu_addr,
+				    dma_addr_t dma_addr, size_t size)
+{
+	return -EINVAL;
+}
+
+static inline int dma_get_sgtable(struct device *dev, struct sg_table *sgt,
+				  void *cpu_addr, dma_addr_t dma_addr,
+				  size_t size)
+{
+	return -EINVAL;
+}
+
 #endif