diff options
| author | Krishna Prasad Bhat <krishna.p.bhat.d@intel.com> | 2023-09-21 23:54:53 +0530 |
|---|---|---|
| committer | Subrata Banik <subratabanik@google.com> | 2023-10-04 05:48:23 +0000 |
| commit | 183092743b85533bdbd2e5a706980561786dbd34 (patch) | |
| tree | dde446133e8d2b9e7169fabde4263c4ee03f5cb1 /src/soc | |
| parent | 7542fa19a969dcd13a1fd23d23f91ad7898e5f65 (diff) | |
soc/intel/mtl: Override SOC_INTEL_CSE_FW_PARTITION_CMOS_OFFSET
CSE firmware downgrade and PSR data backup flows involve global resets,
there is a need to track the PSR data backup status across resets. In
the subsequent patches, a CMOS structure to store PSR back-up status
will be added.
The current SOC_INTEL_CSE_FW_PARTITION_CMOS_OFFSET of 68 can only store
cse_specific_info, as ramtop is at offset 100 and PSR back-up status
structure will not be able to fit within the range.
This patch overrides the SOC_INTEL_CSE_FW_PARTITION_CMOS_OFFSET to 161
to accommodate all CSE related info in adjacent CMOS memory.
BUG=b:273207144
TEST=Verify CSE RW FW versions are stored in CMOS memory in rex.
Change-Id: I8bae5245f93b99be15b4e59cfeffbc23eec95001
Signed-off-by: Krishna Prasad Bhat <krishna.p.bhat.d@intel.com>
Signed-off-by: Rizwan Qureshi <rizwan.qureshi@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/78054
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/soc')
| -rw-r--r-- | src/soc/intel/meteorlake/Kconfig | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/soc/intel/meteorlake/Kconfig b/src/soc/intel/meteorlake/Kconfig index 1c61547fb6..a416e88c75 100644 --- a/src/soc/intel/meteorlake/Kconfig +++ b/src/soc/intel/meteorlake/Kconfig @@ -439,4 +439,14 @@ config IOE_DIE_CLOCK_START config HAVE_BMP_LOGO_COMPRESS_LZMA default n +# The default offset to store CSE RW FW version information is at 68. +# However, in Intel Meteor Lake based systems that use PSR, the additional +# size required to keep CSE RW FW version information and PSR back-up status +# in adjacent CMOS memory at offset 68 is not available. Therefore, we +# override the default offset to 161, which has enough space to keep both +# the CSE related information together. +config SOC_INTEL_CSE_FW_PARTITION_CMOS_OFFSET + int + default 161 + endif |