Change in coreboot[master]: mb/google/guybrush: Override I2C3 pad configuration

[Karthik Ramasubramanian (Code Review)]

Attention is currently required from: Jason Glenesk, Furquan Shaikh, Martin Roth, Marshall Dawson, Felix Held.
Hello Jason Glenesk, build bot (Jenkins), Raul Rangel, Martin Roth, Furquan Shaikh, Marshall Dawson, Felix Held,

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

https://review.coreboot.org/c/coreboot/+/55149

to look at the new patch set (#3).

Change subject: mb/google/guybrush: Override I2C3 pad configuration
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mb/google/guybrush: Override I2C3 pad configuration

I2C bus to Google Security Chip (GSC) should be at 1.8V level. By
default, all the I2C buses are initialized to operate at 3.3 V. Override
the I2C3 pad control configuration.

BUG=b:188538373
TEST=Build and boot to OS in Guybrush. Ensure that the communication
with GSC is fine.

Change-Id: I595a64736fdac0274abffb68c5e521302275b845
Signed-off-by: Karthikeyan Ramasubramanian 
---
M src/mainboard/amd/majolica/devicetree.cb
M src/mainboard/google/guybrush/variants/baseboard/devicetree.cb
M src/soc/amd/cezanne/chip.h
M src/soc/amd/cezanne/i2c.c
4 files changed, 17 insertions(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/49/55149/3