diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h
index e701a4d..d9c3cf6 100644
--- a/arch/arm/include/asm/dma-mapping.h
+++ b/arch/arm/include/asm/dma-mapping.h
@@ -22,6 +22,8 @@
 {
 	if (dev && dev->archdata.dma_ops)
 		return dev->archdata.dma_ops;
+	if (arch_is_coherent())
+		return &arm_coherent_dma_ops;
 	return &arm_dma_ops;
 }
 
diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h
index 4afb376..f0c2bc4 100644
--- a/arch/arm/include/asm/memory.h
+++ b/arch/arm/include/asm/memory.h
@@ -24,6 +24,10 @@
 #include <mach/memory.h>
 #endif
 
+#ifndef arch_is_coherent
+#define arch_is_coherent() 0
+#endif
+
 /*
  * Allow for constants defined here to be used from assembly code
  * by prepending the UL suffix only with actual C code compilation.