From: Max Filippov <jcmvbkbc@gmail.com>
Date: Sun, 14 Oct 2012 23:55:33 +0000 (+0400)
Subject: xtensa: ISS: fix rs_put_char
X-Git-Tag: v3.7-rc2~12^2~10
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c88d8df0cc69fe0238f2c805a87cc67fb27a43fe;p=pandora-kernel.git

xtensa: ISS: fix rs_put_char

ISS serial console prints garbage instead of symbols printed via
rs_put_char. gcc optimizes away putting prined symbol into memory buffer
because there's no evidence that the buffer is used afterwards.

Make rs_put_char and rs_write use simc_write that has explicit wmb.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Chris Zankel <chris@zankel.net>
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