diff --git a/src/soc/intel/apollolake/romstage.c b/src/soc/intel/apollolake/romstage.c index ce28326392..049bf4fe61 100644 --- a/src/soc/intel/apollolake/romstage.c +++ b/src/soc/intel/apollolake/romstage.c @@ -241,6 +241,14 @@ void platform_fsp_memory_init_params_cb(struct FSPM_UPD *mupd) } else printk(BIOS_DEBUG, "MRC cache was not found\n"); } + + /* + * Tell CSE we do not need to use Ring Buffer Protocol (RBP) to fetch + * firmware for us if we are using memory-mapped SPI. This lets CSE + * state machine transition to next boot state, so that it can function + * as designed. + */ + mupd->FspmConfig.SkipCseRbp = IS_ENABLED(CONFIG_SPI_FLASH_MEMORY_MAPPED); } __attribute__ ((weak))