Sridhar Siricilla uploaded patch set #4 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 compatible issues.
To avoid the data compatible issues, coreboot sends DATA CLEAR HECI
command to CSE to clear CSE run time data on preventive basis during
adowngrade 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/custom_bp.c
M src/soc/intel/common/block/include/intelblocks/cse.h
2 files changed, 89 insertions(+), 6 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/61/40561/4

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