[M] Change in coreboot[master]: soc/intel/cmn/cse: API to perform essential CSE operations post EOP

[Subrata Banik (Code Review)]

Attention is currently required from: Tarun Tuli, Kapil Porwal, Ivy Jian, Angel Pons, Arthur Heymans, Eric Lai, Lean Sheng Tan.

Hello build bot (Jenkins), Tarun Tuli, Kapil Porwal, Ivy Jian, Angel Pons, Arthur Heymans, Eric Lai, Lean Sheng Tan,

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

https://review.coreboot.org/c/coreboot/+/69977

to look at the new patch set (#4).

Change subject: soc/intel/cmn/cse: API to perform essential CSE operations post EOP
......................................................................

soc/intel/cmn/cse: API to perform essential CSE operations post EOP

This patch creates an API that can perform essential CSE operation
after sending the late EOP command to the CSE and prior booting to OS.

Lists of operation are
- Perform global reset lock
- Put HECI1 to D0i3 and disable the HECI1 if the user selects
- Set D0I3 for all HECI devices.

Additionally, ensures that CSE .final operation is not sending EOP
and other essential operations if the SoC user selects
SOC_INTEL_CSE_SEND_EOP_LATE config.

BUG=b:260041679
TEST=Able to boot Google/Rex after sending CSE EOP late.

Signed-off-by: Subrata Banik 
Change-Id: I10131ea9b553a62f0d632783c4dbad96d35d6563
---
M src/soc/intel/common/block/cse/cse.c
M src/soc/intel/common/block/include/intelblocks/cse.h
2 files changed, 54 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/77/69977/4