Change in coreboot[master]: mb/google/volteer: Improve Port 1 USB2 Eye Diagram for delbin

[Frank Chu (Code Review)]

Frank Chu has uploaded a new patch set (#2). ( https://review.coreboot.org/c/coreboot/+/48194 )

Change subject: mb/google/volteer: Improve Port 1 USB2 Eye Diagram for delbin
......................................................................

mb/google/volteer: Improve Port 1 USB2 Eye Diagram for delbin

In order to pass DB type-C USB2 eye diagram, DB USB2 PHY register needs
to be overridden.

port#1
PortUsb20Enable=1
Usb2PhyPetxiset=3
Usb2PhyTxiset=2
Usb2PhyPredeemp=7
Usb2PhyPehalfbit=1

BUG=b:173676539
BRANCH=None
TEST=emerge-volteer coreboot chromeos-bootimage

Signed-off-by: FrankChu 
Change-Id: I41cda27f97287fae5c23dc9843fdf0a8a33057f8
---
M src/mainboard/google/volteer/variants/delbin/overridetree.cb
1 file changed, 8 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/94/48194/2