intel/gm45: Handle overflows during DDR3 write training

We halted the machine on any overflow during the write training.
However, overflows during the search for a good to bad edge are
non-fatal, and should be ignored.

Change-Id: I45ccbabc214e208974039246d806b0d2ca2fdc03
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: http://review.coreboot.org/3256
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
1 file changed