tree 8c92187e2bb7c8a47dee07efee6e99c89f1dbb50
parent de110ee07d3e3c4bd0e7d65093cf58beaa5a3748
author Lin Huang <hl@rock-chips.com> 1467890388 +0800
committer Martin Roth <martinroth@google.com> 1469465875 +0200

rockchip/rk3399: set CA drive strength to 48ohms

As shown in testing, if CA use 34.3ohms drive strength, it leads
to an overshoot. To fix this, change the drive strength to 48 ohms.

BRANCH=none
BUG=chrome-os-partner:54871
TEST=run "stressapptest -M 1024 -s 1000" on kevin board and pass

Change-Id: I8666474fc18391da14a3338611f962f2f08f36d0
Signed-off-by: Martin Roth <martinroth@chromium.org>
Original-Commit-Id: fbc1c13f9ab808fc907b2e3f9bde1d09f92980f1
Original-Change-Id: I231f5b1bd45ff262686fbacbaf119a8a57fad27b
Original-Signed-off-by: Lin Huang <hl@rock-chips.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/358761
Original-Commit-Ready: Dan Shi <dshi@chromium.org>
Original-Tested-by: Caesar Wang <wxt@rock-chips.com>
Original-Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/15811
Tested-by: build bot (Jenkins)
Reviewed-by: Furquan Shaikh <furquan@google.com>