[coreboot-gerrit] Patch merged into coreboot/master: 3ac4460 rambi: disable internal pullups on ram_id[2:0]

[gerrit at coreboot.org]

the following patch was just integrated into master:
commit 3ac446036988bca020d902bd9b5c580cd367d9bb
Author: Aaron Durbin <adurbin at chromium.org>
Date:   Wed Oct 16 09:21:55 2013 -0700

    rambi: disable internal pullups on ram_id[2:0]
    
    The ram_id[2:0] signals have stuffing options for pull up/down
    with values of 10K. However, the default pulldown values for these
    pads are 20K. Therefore, one can't read a high value because of
    the high voltage threshold is 0.65 * Vref. Therefore the high
    signals are marginal at best.
    
    Fix this issue by disabling the internal pull for the pads connected
    to ram_id[2:0].
    
    BUG=chrome-os-partner:23350
    BRANCH=None
    TEST=Built and checked that ram_id[2:0] is properly read now.
    
    Change-Id: Ib414d5798b472574337d1b71b87a4cf92f40c762
    Signed-off-by: Aaron Durbin <adurbin at chromium.org>
    Reviewed-on: https://chromium-review.googlesource.com/173211
    Reviewed-by: Shawn Nematbakhsh <shawnn at chromium.org>
    Reviewed-by: Bernie Thompson <bhthompson at chromium.org>


See http://review.coreboot.org/4885 for details.

-gerrit