linux-kernel - [PATCH] asm-generic/io.h: add big endian versions of io{read,write}{16,32}

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Message-Id: <1268066071-26711-1-git-send-email-vapier@gentoo.org>
Date:	Mon,  8 Mar 2010 11:34:31 -0500
From:	Mike Frysinger <vapier@...too.org>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH] asm-generic/io.h: add big endian versions of io{read,write}{16,32}

The asm-generic/iomap.h provides these functions already, but the
non-generic fallback defines do not.

Signed-off-by: Mike Frysinger <vapier@...too.org>
---
 include/asm-generic/io.h |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h
index 1003bd1..4644c9a 100644
--- a/include/asm-generic/io.h
+++ b/include/asm-generic/io.h
@@ -244,11 +244,15 @@ static inline void writesb(const void __iomem *addr, const void *buf, int len)
 #ifndef CONFIG_GENERIC_IOMAP
 #define ioread8(addr)		readb(addr)
 #define ioread16(addr)		readw(addr)
+#define ioread16be(addr)	be16_to_cpu(ioread16(addr))
 #define ioread32(addr)		readl(addr)
+#define ioread32be(addr)	be32_to_cpu(ioread32(addr))
 
 #define iowrite8(v, addr)	writeb((v), (addr))
 #define iowrite16(v, addr)	writew((v), (addr))
+#define iowrite16be(v, addr)	iowrite16(be16_to_cpu(v), (addr))
 #define iowrite32(v, addr)	writel((v), (addr))
+#define iowrite32be(v, addr)	iowrite32(be32_to_cpu(v), (addr))
 
 #define ioread8_rep(p, dst, count) \
 	insb((unsigned long) (p), (dst), (count))
-- 
1.7.0

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