Blackfin arch: add mmiowb() as some drivers expect

Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
git-mirror · Nov 18, 2008 · ecdbfc1 · ecdbfc1
1 parent 5ad2ca5
commit ecdbfc1
Showing 1 changed file with 2 additions and 0 deletions.
diff --git 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 */