the following patch was just integrated into master: commit 6f7ce9b2172297b56c4b255a1c322b576a4583b8 Author: Patrick Rudolph siro@das-labor.org Date: Sun Jul 12 12:17:21 2015 +0200
intel raminit: fix timB high adjust calculation
Issue observed: Any memory DIMM placed in channel0 slots stops at "c320c discovery failed". The same memory DIMM works when placed in channel1 slots.
Test system: * Intel Pentium CPU G2130 * Gigabyte GA-B75M-D3H * DIMMs: * elixir 1GB 1Rx8 PC3-10600U M2Y1G64CB88A5N * crucial 2GB 256Mx64 CT2566aBA160BJ * corsair 8GB CMZ16GX3M2A1866C9
Problem description: In case of good timmings (all bits are set) an offset of 3*64 was applied. The following test (c320c discovery) failed only on those byte-lanes.
Problem solution: Don't modify timB in case of good timings measured.
Final testing result: The system boots with every DIMM placed in channel 0 slots.
Change-Id: Iea426ea4470640ce254f16e958a395644ff1a55c Signed-off-by: Patrick Rudolph siro@das-labor.org Reviewed-on: http://review.coreboot.org/10889 Tested-by: build bot (Jenkins) Reviewed-by: Vladimir Serbinenko phcoder@gmail.com Reviewed-by: Paul Menzel paulepanter@users.sourceforge.net Reviewed-by: Nicolas Reinecke nr@das-labor.org
See http://review.coreboot.org/10889 for details.
-gerrit