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authorHaavard Skinnemoen <hskinnemoen@atmel.com>2007-08-13 16:24:01 +0200
committerHaavard Skinnemoen <hskinnemoen@atmel.com>2007-08-15 16:36:56 +0200
commitcca67164bbdb083df9adb6480822518b0f4b358f (patch)
treea4b951950a6f9dfb880d25d57a932760aa2032f1 /include/asm-avr32
parent6f834197a79d34d65ca44e9c77f2571edbcfb64b (diff)
[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>
Diffstat (limited to 'include/asm-avr32')
-rw-r--r--include/asm-avr32/io.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/asm-avr32/io.h b/include/asm-avr32/io.h
index e30d4b3bd83..64bb92bb677 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,