Sridhar Siricilla uploaded patch set #15 to this change.

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soc/intel/common: Add downgrade support for CSE Firmware

Add downgrade support for CSE RW firmware.
When CSE FW is downgraded, CSE may get into data compatibility issues.
To avoid such issues, coreboot sends DATA CLEAR HECI command to CSE to
clear CSE run time data on preventive basis during a downgrade and
when CSE indicate the data mismatch error through GET_BOOT_PARTITION_INFO.

BUG=b:144894771
TEST=Verified on hatch

Signed-off-by: Sridhar Siricilla <sridhar.siricilla@intel.com>
Change-Id: I0a3a3036e448e5a743398f6b27e8e62965dbff3c
---
M src/soc/intel/common/block/cse/cse_lite.c
M src/soc/intel/common/block/include/intelblocks/cse.h
2 files changed, 88 insertions(+), 4 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/61/40561/15

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