There was dereference of NULL dev->ops in pnp_enter/exit_conf_mode()
as those calls were made before pnp_enable_devices() was run.
Since hardware did not enter configuration mode, detection failed with
ID and REV read as 0xff.
Change-Id: If13086707cd86e392890ccf4f717e13a87f3317f
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/5949
Tested-by: build bot (Jenkins)
Reviewed-by: Nico Huber <nico.h@gmx.de>