diff options
| -rw-r--r-- | src/drivers/intel/fsp2_0/memory_init.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/drivers/intel/fsp2_0/memory_init.c b/src/drivers/intel/fsp2_0/memory_init.c index 039dafec8e..7b031040c8 100644 --- a/src/drivers/intel/fsp2_0/memory_init.c +++ b/src/drivers/intel/fsp2_0/memory_init.c @@ -279,6 +279,19 @@ static enum cb_err fsp_fill_common_arch_params(FSPM_ARCH_UPD *arch_upd, fsp_fill_mrc_cache(arch_upd, s3wake, fsp_version); + /* + * For S3 resume case, if valid mrc cache data is not found + * or RECOVERY_MRC_CACHE hash verification fails, the S3 data + * pointer would be null and Bootmode is set to + * BOOT_WITH_FULL_CONFIGURATION. This gets memory to be retrained + * in S3 flow. Data context including that of imdr root pointer would + * be lost, invoking a hard reset in romstage post memory init. + * Issuing hard reset here, saves fsp memory initialization and + * training overhead. + */ + if (s3wake && !arch_upd->NvsBufferPtr) + hard_reset(); + return CB_SUCCESS; } |