[coreboot-gerrit] Change in coreboot[master]: mb/google/zork: Modify USB2.0 PHY parameters for improve usb eye diagram

[Kane Chen (Code Review)]

Hello build bot (Jenkins), Martin Roth, Furquan Shaikh, Aaron Durbin,

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/coreboot/+/45641

to look at the new patch set (#5).

Change subject: mb/google/zork: Modify USB2.0 PHY parameters for improve usb eye diagram
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mb/google/zork: Modify USB2.0 PHY parameters for improve usb eye diagram

Add USB 2.0 setting:
1. USB 2.0 TypeC port0:
.com_pds_tune = 0x03,
.sq_rx_tune = 0x3,
.tx_fsls_tune = 0x3,
.tx_pre_emp_amp_tune = 0x03,
.tx_pre_emp_pulse_tune = 0x0,
.tx_rise_tune = 0x1,
.rx_vref_tune = 0xf,
.tx_hsxv_tune = 0x3,
.tx_res_tune = 0x01,

2. USB 2.0 TypeC port3:
.com_pds_tune = 0x03,
.sq_rx_tune = 0x3,
.tx_fsls_tune = 0x3,
.tx_pre_emp_amp_tune = 0x03,
.tx_pre_emp_pulse_tune = 0x0,
.tx_rise_tune = 0x1,
.rx_vref_tune = 0xf,
.tx_hsxv_tune = 0x3,
.tx_res_tune = 0x01,

BUG=b:169207729
BRANCH=zork
TEST=emerge-zork coreboot chromeos-bootimage

Signed-off-by: Kane Chen 
Change-Id: I764238485a1a81eb0d4740ac58c80a43f965f550
---
M src/mainboard/google/zork/variants/woomax/overridetree.cb
1 file changed, 24 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/41/45641/5