diff --git a/[refs] b/[refs]
index e730c8d866c2..e2d3d38892ed 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 5ad2ca5fbbb002e48097b2ab364497d0f9f77987
+refs/heads/master: ecdbfc1ac10eaba04c699d6f8a004f987622264c
diff --git a/trunk/arch/blackfin/include/asm/io.h b/trunk/arch/blackfin/include/asm/io.h
index 7dc77a21fdf3..e7591ea2a0e0 100644
--- a/trunk/arch/blackfin/include/asm/io.h
+++ b/trunk/arch/blackfin/include/asm/io.h
@@ -108,6 +108,8 @@ static inline unsigned int readl(const volatile void __iomem *addr)
 #define iowrite16(val,X)		writew(val,X)
 #define iowrite32(val,X)		writel(val,X)
 
+#define mmiowb() wmb()
+
 #define IO_SPACE_LIMIT 0xffffffff
 
 /* Values for nocacheflag and cmode */