tree e42170d6dec83073b93d69dd6eec34c2303e3da1
parent cbde6410a039b37d0df07e53953baad552bd22cc
author Kevin Chiu <kevin.chiu.17802@gmail.com> 1611297212 +0800
committer Patrick Georgi <pgeorgi@google.com> 1611564681 +0000

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

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:165209698
BRANCH=zork
TEST=1. emerge-zork coreboot
     2. pass USB 2.0 SI eye diagram verification

Change-Id: I80afd6bf1257b9a72d0d7651b48d243ebaf5de2f
Signed-off-by: Kevin Chiu <kevin.chiu@quantatw.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49824
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Rob Barnes <robbarnes@google.com>