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In CSE Firmware Custom SKU, CSE region is logically divided into
2 boot partitions. These boot partitions are represented by BP1(RO),
BP2(RW). With CSE Firmware Custom SKU, CSE can boot from either
RO(BP1) or RW(BP2).
The CSE Firmware Custom SKU layout appears as below:
------------- -------------------- ---------------------
|CSE REGION | => | RO | RW | DATA | => | BP1 | BP2 | DATA |
------------- -------------------- ---------------------
In order to support CSE FW update to RW region, below APIs help coreboot
to get info about the boot partitions, and allows coreboot to set CSE
to boot from required boot partition (either RO(BP1) or RW(BP2)).
GET_BOOT_PARTITION_INFO - Provides info on available partitions in the CSE
region. The API provides info on boot partitions like start/end offsets
of a partition within CSE region, and their version and partition status.
SET_BOOT_PARTITION_INFO - Sets CSE's next boot partition to boot from.
With the HECI API, firmware can notify CSE to boot from RO(BP1) or RW(BP2)
on next boot.
As system having CSE Firmware Custom SKU, boots from RO(BP1) after G3,
so coreboot sets CSE to boot from RW(BP2) in normal mode and further,
coreboot ensure CSE to boot from whichever is selected boot partition
if system is in recovery mode.
BUG=b:145809764
TEST=Verified on hatch
Change-Id: Iaa62409c0616d5913d21374a8a6804f82258eb4f
Signed-off-by: Sridhar Siricilla <sridhar.siricilla@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35402
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
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This patch cleans soc/intel/{cnl, icl, tgl} by moving common
soc code into common/block/cse.
Supported SoC can select existing HECI_DISABLE_USING_SMM option to
select common cse code block to make heci function disable using
sideband interface during SMM mode at preboot envionment.
BUG=b:78109109
TEST=Able to make HECI disable in SMM mode successfully without any hang
or errors in CNL, ICL and TGL platform.
Change-Id: I22a4cc05d3967c7653d2abe2c829b4876516d179
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Signed-off-by: Maulik V Vaghela <maulik.v.vaghela@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/26133
Reviewed-by: V Sowmya <v.sowmya@intel.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Change-Id: Iaab26033e947cb9cf299faf1ce6d40a90a9facbe
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/20704
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
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Add common driver that can send/receive HECI messages. This driver is
inspired by Linux kernel mei driver and somewhat based on Skylake's.
Currently it has been only tested on Apollolake.
BUG=b:35586975
BRANCH=reef
TEST=tested on Apollolake to send single messages and receive both
fragmented and non-fragmented versions.
Change-Id: Ie3772700270f4f333292b80d59f79555851780f7
Signed-off-by: Andrey Petrov <andrey.petrov@intel.com>
Reviewed-on: https://review.coreboot.org/18547
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins)
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