the following patch was just integrated into master: commit 263c679075816a0db146ff5fa6b94689837ff696 Author: Timothy Pearson <tpearson@raptorengineeringinc.com> Date: Fri Apr 29 01:34:08 2016 -0500 nb/amd/mct_ddr3: Skip nibble training when current DIMM is not x4 Change-Id: I1f5b024606093dc81de3f3d69b7a43e20141b709 Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com> Reviewed-on: https://review.coreboot.org/14542 Tested-by: build bot (Jenkins) Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com> Reviewed-by: Martin Roth <martinroth@google.com> See https://review.coreboot.org/14542 for details. -gerrit