[M] Change in coreboot[main]: mb/amd/birman: add function to update MPIO config in devicetree

[Felix Held (Code Review)]

Attention is currently required from: Felix Held, Fred Reitberger, Jason Glenesk, Varshit Pandya.

Hello Fred Reitberger, Jason Glenesk, Varshit Pandya, build bot (Jenkins),

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

https://review.coreboot.org/c/coreboot/+/82106?usp=email

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

The following approvals got outdated and were removed:
Code-Review+1 by Varshit Pandya, Verified+1 by build bot (Jenkins)

Change subject: mb/amd/birman: add function to update MPIO config in devicetree
......................................................................

mb/amd/birman: add function to update MPIO config in devicetree

Phoenix 2 has less PCIe lanes than Phoenix, so some of the lane end
numbers need to be adjusted to take that into account. When the Kconfig
options WLAN01 or WWAN01 are set, either the WLAN or the WWAN card uses
both PICe lanes that are available for those two devices, so the MPIO
descriptor information the devicetree needs to be updated accordingly
and the bridge to the PCIe port that doesn't have any lane left needs to
be disabled. Two other PCIe devices will be disabled when the
corresponding Kconfig options ENABLE_EVAL_CARD and DISABLE_DT_M2 have
the value that results in the device being disabled via some GPIO driven
by the EC. Since the code is specific to the openSIL case, only include
it in the build in the CONFIG_BOARD_AMD_BIRMAN_PHOENIX_OPENSIL case.

Signed-off-by: Felix Held 
Change-Id: I23c14cc03980ea1e39f7e5aec551b975c237e487
---
M src/mainboard/amd/birman/Makefile.mk
M src/mainboard/amd/birman/mainboard.c
A src/mainboard/amd/birman/update_devicetree.h
A src/mainboard/amd/birman/update_devicetree_phoenix_opensil.c
4 files changed, 58 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/06/82106/3