[coreboot-gerrit] Patch merged into coreboot/master: gru: Add USB 2.0 PHY tuning for Kevin
gerrit at coreboot.org
gerrit at coreboot.org
Tue Sep 20 00:32:18 CEST 2016
the following patch was just integrated into master:
commit 1c8491c3ab75cc54c5288552b3ffb8513a3488aa
Author: Julius Werner <jwerner at chromium.org>
Date: Mon Aug 15 17:58:05 2016 -0700
gru: Add USB 2.0 PHY tuning for Kevin
This patch sets some magic number in magic undocumented registers that
are rumored to make USB 2.0 signal integrity better on Kevin. I don't
see any difference (unfortunately it doesn't solve the problems with
long cables on my board), but I guess it doesn't hurt either way.
BRANCH=None
BUG=chrome-os-partner:56108,chrome-os-partner:54788
TEST=Booted Kevin with USB connected through Servo. Seems to have
roughly the same failure rate as before.
Change-Id: If31fb49f1ed7218b50f24e251e54c9400db72720
Signed-off-by: Martin Roth <martinroth at chromium.org>
Original-Commit-Id: 0c5c8f0f80ea1ebb042bcb91506a6100833e7e84
Original-Change-Id: Ifbd47bf6adb63a2ca5371c0b05c5ec27a0fe3195
Original-Signed-off-by: Julius Werner <jwerner at chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/370900
Original-Reviewed-by: Guenter Roeck <groeck at chromium.org>
Original-Reviewed-by: David Schneider <dnschneid at chromium.org>
Reviewed-on: https://review.coreboot.org/16265
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi at google.com>
See https://review.coreboot.org/16265 for details.
-gerrit
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