mb/google/reef: Override USB2 phy settings

Sometimes the USB device is not detected. USB2 port#1 and #4 PHY register need
to be overridden.

port#1:
PERPORTPETXISET = 4
PERPORTTXISET = 4
IUSBTXEMPHASISEN= 1
PERPORTTXPEHALF= 0

port#4:
PERPORTPETXISET = 7
PERPORTTXISET = 7
IUSBTXEMPHASISEN= 1
PERPORTTXPEHALF= 0

BUG=b:72623892
BRANCH=master
TEST=emerge-reef coreboot chromeos-bootimage

Change-Id: Iab782ac6dfd81af839fff0e60e2b2460ce722733
Signed-off-by: Tim Chen <Tim-Chen@quantatw.com>
Reviewed-on: https://review.coreboot.org/23878
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
1 file changed