[coreboot-gerrit] Change in coreboot[master]: soc/mediatek: Fix USB enumeration issue

[Yu-Ping Wu (Code Review)]

Yu-Ping Wu has uploaded a new patch set (#5) to the change originally created by Ran Bi. ( https://review.coreboot.org/c/coreboot/+/35150 )

Change subject: soc/mediatek: Fix USB enumeration issue
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soc/mediatek: Fix USB enumeration issue

Some USB 3.0 devices fail to be enumerated after USB reset, and xhci
port status register shows the device is disconnected. After measuring
the USB signal, we found that the USB disconnect threshold was lower and
that the disconnect event was triggered unexpectedly.

USB designers suggest changing discth to 15.

BUG=b:122047652
TEST=emerge-kukui coreboot chromeos-bootimage

Change-Id: I0e8556035b49d693a42cbe1099a6882a1c0ed0d1
Signed-off-by: Changqi Hu 
---
M src/soc/mediatek/common/include/soc/usb_common.h
M src/soc/mediatek/common/usb.c
2 files changed, 6 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/50/35150/5