From: Haavard Skinnemoen <hskinnemoen@atmel.com>
Date: Mon, 13 Aug 2007 14:24:01 +0000 (+0200)
Subject: [AVR32] Define mmiowb()
X-Git-Url: http://git.rot13.org/?a=commitdiff_plain;ds=sidebyside;h=cca67164bbdb083df9adb6480822518b0f4b358f;p=powerpc.git

[AVR32] Define mmiowb()

Add empty definition of mmiowb() since some drivers need it. Uncached
writes are strongly ordered on AVR32. They may be delayed if the
dcache is busy doing a writeback, but AFAICT that's not what this
macro is supposed to deal with, at least on UP systems.

We might have to revisit this definition when a SMP-capable AVR32 CPU
comes along, depending on how the busses and cache coherency stuff
end up being implemented.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
---

diff --git a/include/asm-avr32/io.h b/include/asm-avr32/io.h
index e30d4b3bd8..64bb92bb67 100644
--- a/include/asm-avr32/io.h
+++ b/include/asm-avr32/io.h
@@ -255,6 +255,8 @@ static inline void memset_io(volatile void __iomem *addr, unsigned char val,
 	memset((void __force *)addr, val, count);
 }
 
+#define mmiowb()
+
 #define IO_SPACE_LIMIT	0xffffffff
 
 extern void __iomem *__ioremap(unsigned long offset, size_t size,