the following patch was just integrated into master: commit acba73aefcbd7dacb547b61570a1836b745be2e5 Author: Jonathan A. Kollasch jakllsch@kollasch.net Date: Mon Jul 20 09:51:34 2015 -0500
nvidia southbridges: don't touch 0x78 in LPC bridge with Fam10h
Based on the observations that AMD Fam10h with both Nvidia CK804 (Asus KFSN4-DRE) and MCP55 (Sun Ultra 40 M2) need to avoid adjusting the LPC bridge register 0x78 (particularly the 0x7b byte) to get to ramstage: Assume that there's something about this register that adjusting it the way we do for K8 is something that can/should be universally avoided on all Fam10h systems with these chipsets.
Change-Id: I1eceeb20ecaefef4c61c11e19d1f5a59f91a0a2f Signed-off-by: Jonathan A. Kollasch jakllsch@kollasch.net Reviewed-on: http://review.coreboot.org/10984 Reviewed-by: Paul Menzel paulepanter@users.sourceforge.net Tested-by: build bot (Jenkins) Reviewed-by: Timothy Pearson tpearson@raptorengineeringinc.com
See http://review.coreboot.org/10984 for details.
-gerrit