[M] Change in coreboot[master]: soc/intel/cmn/blk: Request pre-reset EC boot timestamps

[Jay Patel (Code Review)]

Attention is currently required from: Bora Guvendik, Hannah Williams, Wonkyu Kim, Subrata Banik, Dinesh Gehlot.

Hello Bora Guvendik, build bot (Jenkins), Hannah Williams,

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

https://review.coreboot.org/c/coreboot/+/72931

to look at the new patch set (#14).

Change subject: soc/intel/cmn/blk: Request pre-reset EC boot timestamps
......................................................................

soc/intel/cmn/blk: Request pre-reset EC boot timestamps

coreboot requests pre-reset power signal timestamps to the EC. These
timestamps are used to calculate pre-reset boot time and inserted into
the coreboot timestamp table.

The EC patches required to enable the feature in the EC:
https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3794612

In EC, it is also required to enable the feature in program config
file by using SYSTEM_BOOT_TIME_LOGGING flag.

BUG=b:271012752
TEST=Pre-reset timestamps added to cbmem timestamp table if flag
enabled in Kconfig file and feature enabled from romstage for
specific board.

Signed-off-by: Jay Patel 
Change-Id: Iecb88eaa085759ea9430708d45abf1ca69727ce9
---
A src/soc/intel/common/block/ec_telemetry/Kconfig
A src/soc/intel/common/block/ec_telemetry/Makefile.inc
A src/soc/intel/common/block/ec_telemetry/ec_telemetry.c
A src/soc/intel/common/block/include/intelblocks/ec_telemetry.h
4 files changed, 109 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/31/72931/14