The gt64260 looks at the highest 20 bits while the mv64[34]60 looks at only
the highest 16 bits when determining the base address for the bridge's
registers.  This patch adds support for both.
Signed-off-by: Nate Case <ncase@xes-inc.com>
Signed-off-by: Mark A. Greer <mgreer@mvista.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>