[PATCH] ppc32: Big-endian I/O memory accessors.

[a.othieno@bluewin.ch (Arthur Othieno)]

I/O memory accessors. Big-endian version. For those busses/devices
that do export big-endian I/O memory.

Of notable relevance/reference:

   http://lwn.net/Articles/132804/
   http://ozlabs.org/pipermail/linuxppc-embedded/2005-August/019798.html
   http://ozlabs.org/pipermail/linuxppc-embedded/2005-August/019752.html

Signed-Off-By: Arthur Othieno <a.othieno@bluewin.ch>


  io.h |   20 ++++++++++++++++++++
  1 files changed, 20 insertions(+)


--- a/include/asm-ppc/io.h	2005-08-20 19:24:40.000000000 -0400
+++ b/include/asm-ppc/io.h	2005-08-20 20:18:03.000000000 -0400
@@ -487,11 +487,21 @@
 	return readw(addr);
 }
 
+static inline unsigned int ioread16be(void __iomem *addr)
+{
+	return __raw_readw(addr);
+}
+
 static inline unsigned int ioread32(void __iomem *addr)
 {
 	return readl(addr);
 }
 
+static inline unsigned int ioread32be(void __iomem *addr)
+{
+	return __raw_readl(addr);
+}
+
 static inline void iowrite8(u8 val, void __iomem *addr)
 {
 	writeb(val, addr);
@@ -502,11 +512,21 @@
 	writew(val, addr);
 }
 
+static inline void iowrite16be(u16 val, void __iomem *addr)
+{
+	__raw_writew(val, addr);
+}
+
 static inline void iowrite32(u32 val, void __iomem *addr)
 {
 	writel(val, addr);
 }
 
+static inline void iowrite32be(u32 val, void __iomem *addr)
+{
+	__raw_writel(val, addr);
+}
+
 static inline void ioread8_rep(void __iomem *addr, void *dst, unsigned long count)
 {
 	_insb(addr, dst, count);