Change in coreboot[master]: mb/ocp/tiogapass: Update UPD IIO bifurcation at run-time

[Johnny Lin (Code Review)]

Hello build bot (Jenkins), Anjaneya "Reddy" Chagam, Maxim Polyakov, Jonathan Zhang, David Hendricks, Jingle Hsu, Morgan Jang, Andrey Petrov,

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

https://review.coreboot.org/c/coreboot/+/39895

to look at the new patch set (#10).

Change subject: mb/ocp/tiogapass: Update UPD IIO bifurcation at run-time
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mb/ocp/tiogapass: Update UPD IIO bifurcation at run-time

Update UPD IIO bifurcation at run-time according to different Riser
cards. For detail please reference
Facebook Server Intel Motherboard v4.0, Sec. 10.1.2 Riser card types.

With the engineering build FSP, it can only configure IIO for
one socket so my local test needs to remove all socket1 elements
from tp_iio_bifur_table.

This change relies on [1] and need to add GPP_C15 and GPP_C16 to
early_gpio_table for gpio configuration in bootblock.

[1] https://review.coreboot.org/c/coreboot/+/39427/

Tested=OCP Tioga Pass can see socket0 IIO being updated with
an engineering build FSP.

Change-Id: I8e63a233a2235cd45b14b20542e6efab3de17899
Signed-off-by: Johnny Lin 
---
M src/mainboard/ocp/tiogapass/romstage.c
M src/mainboard/ocp/tiogapass/skxsp_tp_iio.h
2 files changed, 35 insertions(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/95/39895/10