Thinkpad T520 ExpressCard Slot PCIe lanes are connected to port 4. Tested with Serial Port Card. Information read from schematic / lspci Change-Id: I459943d427578d135f9aed1aa66da269ddfeee87 Signed-off-by: Nicolas Reinecke <nr@das-labor.org> Reviewed-on: http://review.coreboot.org/6735 Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Tested-by: build bot (Jenkins) Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>