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Hello Andrey Petrov, Christian Walter, David Hendricks, Dinesh Gehlot, Eran Mitrani, Jakub Czapiga, Jayvik Desai, Kapil Porwal, Karthik Ramasubramanian, Lean Sheng Tan, Nick Vaccaro, Nico Huber, Pranava Y N, Ronak Kanabar, Sean Rhodes, Tarun, Werner Zeh, build bot (Jenkins),
I'd like you to reexamine a change. Please visit
https://review.coreboot.org/c/coreboot/+/84572?usp=email
to look at the new patch set (#4).
The following approvals got outdated and were removed: Verified+1 by build bot (Jenkins)
Change subject: soc/intel: Deprecate SoC-specific global reset status configs ......................................................................
soc/intel: Deprecate SoC-specific global reset status configs
This change removes the SoC-specific `FSP_STATUS_GLOBAL_RESET_REQUIRED_X` Kconfigs, as they are no longer necessary for handling FSP global reset requests.
Previously, these Kconfigs were used to select a specific 32-bit reset status code. However, with the introduction of FSP 2.4 and 64-bit interfaces, the global reset status code can now vary between architectures.
To address this, the FSP driver now sets the `FSP_STATUS_GLOBAL_RESET` config to a common default value (depending upon most commonly used global reset status code) based on the interface: - 0x40000003 for 32-bit FSP interfaces - 0x4000000000000003 for 64-bit FSP interfaces
This default can be overridden if an FSP implementation uses a different status code (for example: Apollo Lake selects different FSP reset status code as 0x40000005).
By removing the SoC-specific configurations, this change simplifies global reset handling and ensures compatibility across different FSP versions and platforms.
Below table shows the relationship between Platform, FSP and FSP Global Reset Status: +-----------------+--------------+-------------------------+ | Platform | FSP | Global Reset Status | +-----------------+--------------+-------------------------+ | Alder Lake | 32-bit | 0x40000003 | +-----------------+--------------+-------------------------+ | Apollo Lake | 32-bit | 0x40000005 | +-----------------+--------------+-------------------------+ | Cannon Lake | 32-bit | 0x40000003 | +-----------------+--------------+-------------------------+ | Elkhart Lake | 32-bit | 0x40000003 | +-----------------+--------------+-------------------------+ | Jasper Lake | 32-bit | 0x40000003 | +-----------------+--------------+-------------------------+ | Meteor Lake | 32-bit | 0x40000003 | +-----------------+--------------+-------------------------+ | Sky Lake | 32-bit | 0x40000003 | +-----------------+--------------+-------------------------+ | Tiger Lake | 32-bit | 0x40000003 | +-----------------+--------------+-------------------------+ | Panther Lake | 64-bit | 0x4000000000000003 | +-----------------+--------------+-------------------------+
BUG=b:347669091 TEST=Verified FSP requested global reset functionality on google/rex0 (32-bit) and google/rex64 (64-bit) platforms.
w/ 32-bit FSP:
``` (Wdt) AllowKnownReset [FspResetSystem2] FSP Reset Initiated FSP returning control to Bootloader with reset required return status 40000003 FSPS, status=0x40000003 FSP: handling reset type, status=0x40000003 GLOBAL RESET! global_reset() called! HECI: Global Reset(Type:1) Command ```
w/ 64-bit FSP:
``` (Wdt) AllowKnownReset [FspResetSystem2] FSP Reset Initiated FSP returning control to Bootloader with reset required return status 3 FSPS, status=0x4000000000000003 FSP: handling reset type, status=0x4000000000000003 GLOBAL RESET! global_reset() called! HECI: Global Reset(Type:1) Command ```
Change-Id: I32bdbf7ea6afa7d5e5f91ea96d887719d26a593f Signed-off-by: Subrata Banik subratabanik@google.com --- M src/drivers/intel/fsp2_0/Kconfig M src/soc/intel/alderlake/Kconfig M src/soc/intel/apollolake/Kconfig M src/soc/intel/cannonlake/Kconfig M src/soc/intel/elkhartlake/Kconfig M src/soc/intel/jasperlake/Kconfig M src/soc/intel/meteorlake/Kconfig M src/soc/intel/pantherlake/Kconfig M src/soc/intel/skylake/Kconfig M src/soc/intel/tigerlake/Kconfig 10 files changed, 23 insertions(+), 48 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/72/84572/4