tree c29bb54da3e7f9a793a08136d06fe2ac08bcf10b
parent de3cdef128966d76e7d8e2ebd641763b911c3ad5
author PH Hsu <ph.hsu@mediatek.com> 1475728312 +0800
committer chrome-bot <chrome-bot@chromium.org> 1475821933 -0700

google/oak: increase the driving strength for 4GB DRAMs

Some PVT units encountered DRAM calibration failure during power on/off
tests. The failure is caused by higher impedance of the DRAM on those units.
So increase the driving strength for 4GB DRAMs.

BUG=chrome-os-partner:57392
TEST=run cold reboot 100 times on PVT units which have DRAM calibration issue.

Change-Id: I0d1776cd1a5892d1f82e9bf414620d1ef6d29132
Signed-off-by: PH Hsu <ph.hsu@mediatek.com>
Reviewed-on: https://chromium-review.googlesource.com/394451
Commit-Ready: Yidi Lin <yidi.lin@mediatek.com>
Tested-by: Yidi Lin <yidi.lin@mediatek.com>
Reviewed-by: Pin-Huan Hsu <ph.hsu@mediatek.com>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>