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authorSridhar Siricilla <sridhar.siricilla@intel.com>2020-04-19 23:39:02 +0530
committerPatrick Georgi <pgeorgi@google.com>2020-08-24 09:12:34 +0000
commit2f6d5551b015d009a94c61b6741bc33a0e01b410 (patch)
treef53445b8cedbc4c47786bec707a510fcc163eab0 /payloads/coreinfo/README
parent0d431acf6c1d51a4f65113c09d7f06cd4868e62e (diff)
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 proactive basis during a downgrade and when CSE indicates a 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 Reviewed-on: https://review.coreboot.org/c/coreboot/+/40561 Reviewed-by: V Sowmya <v.sowmya@intel.com> Reviewed-by: Jamie Ryu <jamie.m.ryu@intel.com> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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