At present the problem has only been reported with Alder Lake and
Raptor Lake FSP where MultiPhaseSiInit API is unable to return any ERROR
status. Hence, this patch ensures to select applicable W/A config to
read FSP return status from the FSP Reset HOB.
BUG=b:278665768
TEST=Able to select FSP_MULTIPHASE_SI_INIT_RETURN_BROKEN for ADL/RPL SoC
code and call into this API to know the return status from
MultiPhaseSiInit FSP API.
Without this patch:
IshInit() Start
IshDisable() Start
IshPerformGlobalReset()
....
....
FSP returning control to Bootloader with reset required return
status 40000003
FspMultiPhaseSiInit Index-1 returned 0 <-- after control returns
into coreboot, the `status` from the FSP API is reset to `0`
instead 0x40000003. Hence, coreboot avoid hitting the reset.
With this patch:
IshInit() Start
IshDisable() Start
IshPerformGlobalReset()
....
....
FSP returning control to Bootloader with reset required return
status 40000003
FSP: handling reset type 40000003 <-- coreboot is able to understand
the reset request in proper.
GLOBAL RESET!
global_reset() called!
HECI: Global Reset(Type:1) Command
Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: I18a918cca7e19e03ed6020c55c86c64a94212963
Reviewed-on: https://review.coreboot.org/c/coreboot/+/74785
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Tarun Tuli <taruntuli@google.com>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
65b64b3f03