GNUBoot
/
coreboot-kgpe-d16
2
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

drivers/intel/fsp2_0: Apply FSP Reset Status W/A for MultiPhaseSiInit 

This patch calls into fsp_get_pch_reset_status() to get the
MultiPhaseSiInit API return status if
FSP_MULTIPHASE_SI_INIT_RETURN_BROKEN is enabled.

Ideally FSP API should be able to return the status (both success and
error code) upon exiting the FSP API but unfortunately there are some
scenarios in ADL/RPL FSP where MultiPhaseSiInit API is unable to return
any ERROR status. Hence, this function can be considered as an
additional hook to read the FSP reset status by reading the dedicated
HOB without relying on the FSP API exit status code.

Any SoC platform that selects the FSP_MULTIPHASE_SI_INIT_RETURN_BROKEN
config will call into this newly added API to get the FSP return status
from MultiPhaseSiInit.

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.

Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: I749c9986e17e4cbab333b29425c9a4a4ba4128fa
Reviewed-on: https://review.coreboot.org/c/coreboot/+/74784
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>
Reviewed-by: Himanshu Sahdev <himanshu.sahdev@intel.com>
This commit is contained in:
Subrata Banik 2023-04-26 16:32:29 +05:30
parent da7d00ef21
commit 25d100243c
1 changed files with 3 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
src/drivers/intel/fsp2_0/silicon_init.c
View File

@ -10,6 +10,7 @@
#include <fsp/api.h>
#include <fsp/util.h>
#include <program_loading.h>
#include <soc/intel/common/reset.h>
#include <soc/intel/common/vbt.h>
#include <stage_cache.h>
#include <string.h>
@ -194,6 +195,8 @@ static void do_silicon_init(struct fsp_header *hdr)
multi_phase_params.phase_index = i;
multi_phase_params.multi_phase_param_ptr = NULL;
status = multi_phase_si_init(&multi_phase_params);
if (CONFIG(FSP_MULTIPHASE_SI_INIT_RETURN_BROKEN))
status = fsp_get_pch_reset_status();
fsps_return_value_handler(FSP_MULTI_PHASE_SI_INIT_EXECUTE_PHASE_API, status);
}
timestamp_add_now(TS_FSP_MULTI_PHASE_SI_INIT_END);