Commit cca67164 authored Aug 13, 2007 by Haavard Skinnemoen

[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>

parent 6f834197

include/asm-avr32/io.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -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,

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