[coreboot-gerrit] Change in coreboot[master]: mb/google/zork: add eDP tunning parameter to fix the eDP noise

[chris wang (Code Review)]

Attention is currently required from: Furquan Shaikh, Kangheui Won, Paul Menzel, Nikolai Vyssotski, chris wang, Felix Held.
Hello build bot (Jenkins), Furquan Shaikh, Kangheui Won, Nikolai Vyssotski, Chris Wang,

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

https://review.coreboot.org/c/coreboot/+/48734

to look at the new patch set (#9).

Change subject: mb/google/zork: add eDP tunning parameter to fix the eDP noise
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mb/google/zork: add eDP tunning parameter to fix the eDP noise

needs to adjust eDP phy setting to fix the eDP noise for WWAN.

DP_VS_LEVEL0_PREEMPH_LEVEL0, = 0x00 (0.4v 0db) swing 0, pre-emphasis 0)
COMMON_MAR_DEEMPH_NOM = 0x004B
COMMON_SELDEEMPH60 = 0x0
CMD_BUS_GLOBAL_FOR_TX_LANE0 = 0x80

BUG=b:171269338
BRANCH=none
TEST=Build; Verify the UPD was passed to system integrated table

Signed-off-by: Chris Wang 
Change-Id: Ibe720e26d2257e05a989eaa1fd85d542005cf6a6
---
M src/mainboard/google/zork/variants/vilboz/overridetree.cb
1 file changed, 10 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/34/48734/9