From: Manfred Spraul 

One bios assigns a small window for i/o access to yenta bridges.  But there
are Cardbus cards that needs lots of i/o ports.  yenta usually honors the bios
selected values, except if the bios choice is clearly invalid.  The patch
allows an override from the command line.
Signed-Off-By: Manfred Spraul <manfred@colorfullife.com>
Signed-Off-By: Dominik Brodowski <linux@brodo.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>