From: Mike Frysinger <vapier.adi@gmail.com>
Date: Tue, 18 Nov 2008 09:48:21 +0000 (+0800)
Subject: Blackfin arch: add mmiowb() as some drivers expect
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=ecdbfc1ac10eaba04c699d6f8a004f987622264c;p=deliverable%2Flinux.git

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>
---

diff --git a/arch/blackfin/include/asm/io.h b/arch/blackfin/include/asm/io.h
index 7dc77a21fdf3..e7591ea2a0e0 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 */