From: Olof Johansson <olof@lixom.net>
Date: Wed, 5 Sep 2007 02:08:50 +0000 (+1000)
Subject: [POWERPC] pasemi: Add workaround for erratum 5945
X-Git-Tag: v2.6.24-rc1~1450^2~276
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4d442331e57b7bbc28b5a20f7d069bc12e9c503e;p=pandora-kernel.git

[POWERPC] pasemi: Add workaround for erratum 5945

Erratum 5945 causes some of the registers on the PCIe root ports to
not read correctly.  Do a small dance to avoid this: Write an unused
register, read the value and write it back.  Thankfully this is not in
a hot code path.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
---

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