[coreboot-gerrit] Change in coreboot[master]: sb/intel: Introduce SCMI Kconfig options

[Keith Hui (Code Review)]

Hello build bot (Jenkins), Patrick Rudolph,

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

https://review.coreboot.org/c/coreboot/+/48921

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

Change subject: sb/intel: Introduce SCMI Kconfig options
......................................................................

sb/intel: Introduce SCMI Kconfig options

Introduce two options for enabling SMBus Control Method Interface [1] support.

1. HAVE_SCMI is to be set by southbridges that implements SCMI in the DSDT.
   That implementation should be conditional on USE_SCMI. See below.
2. USE_SCMI is guarded by HAVE_SCMI and actually provides the option to the
   user in Kconfig. Enabling it adds the SCMI implementation to the DSDT and
   make it usable. Boards that require this support for board function should
   set it in their BOARD_SPECIFIC_OPTIONS, which will lock this option on.

It will be used by CB:41735 but are designed for wider adoption e.g. by CB:44507

[1] http://smbus.org/specs/smbus_cmi10.pdf
[41735] https://review.coreboot.org/c/coreboot/+/41735
[44507] https://review.coreboot.org/c/coreboot/+/44507

Change-Id: Ib1e176b6495fa673fd46cbb8f8fd7c5a41ababde
Signed-off-by: Keith Hui 
---
M src/southbridge/intel/common/Kconfig.common
M src/southbridge/intel/i82371eb/Kconfig
M src/southbridge/intel/i82371eb/acpi/i82371eb.asl
A src/southbridge/intel/i82371eb/acpi/smbus.asl
4 files changed, 205 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/21/48921/3