On Mon, 7 Jan 2008 12:21:56 +0000, Ralf Baechle <ralf@xxxxxxxxxxxxxx> wrote: > Well, is mmiowb() needed at all on JMR3927 - or R3000 in general? Mmiowb() > is meant to deal with weak ordering which only matters to a few SMP > configurations. Well, serial_txx9 driver (mis)use mmiowb() to flush write buffer. But I was wrong. TX39H2 core _has_ SYNC instruction. So the patch I mentioned is not required for JMR3927 platform anyway. Sorry for confusion. --- Atsushi Nemoto
