tree e383cb035e9a0d9e095ad1d372490cd3fca53357
parent 5a27b756423b5913c32ffbfccc9014c60b20e910
author Kevin Chiu <kevin.chiu.17802@gmail.com> 1611298373 +0800
committer Patrick Georgi <pgeorgi@google.com> 1611564686 +0000

mb/google/zork: update USB 2.0 controller Lane Parameter for gumboz

From AMD USB phy specialist recommended that for DB port2 (type-A), port3 (type-C C1)
the most effective corrections for the depressed eye are
tx_rise_tune=0x0
tx_pre_emp_amp_tune=0x3
tx_fsls_tune = 0x3

BUG=b:173476380
BRANCH=zork
TEST=1. emerge-zork coreboot
     2. pass USB 2.0 SI eye diagram verification

Change-Id: Ib31c5d55e30b958d3e552e8d0b4a160947444636
Signed-off-by: Kevin Chiu <kevin.chiu@quantatw.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49826
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>