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-rw-r--r--arch/blackfin/include/asm/io.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/blackfin/include/asm/io.h b/arch/blackfin/include/asm/io.h
index 7dc77a21fdf..e7591ea2a0e 100644
--- a/arch/blackfin/include/asm/io.h
+++ b/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 */