tree a4b951950a6f9dfb880d25d57a932760aa2032f1
parent 6f834197a79d34d65ca44e9c77f2571edbcfb64b
author Haavard Skinnemoen <hskinnemoen@atmel.com> 1187015041 +0200
committer Haavard Skinnemoen <hskinnemoen@atmel.com> 1187188616 +0200

[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>