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-rw-r--r--src/soc/intel/meteorlake/Kconfig19
-rw-r--r--src/soc/intel/meteorlake/fsp_params.c16
2 files changed, 32 insertions, 3 deletions
diff --git a/src/soc/intel/meteorlake/Kconfig b/src/soc/intel/meteorlake/Kconfig
index 86567dc48a..bf50ada13d 100644
--- a/src/soc/intel/meteorlake/Kconfig
+++ b/src/soc/intel/meteorlake/Kconfig
@@ -38,7 +38,6 @@ config CPU_SPECIFIC_OPTIONS
select IOAPIC
select MICROCODE_BLOB_UNDISCLOSED
select MRC_SETTINGS_PROTECT
- select MP_SERVICES_PPI_V2
select PARALLEL_MP_AP_WORK
select PLATFORM_USES_FSP2_3
select PMC_GLOBAL_RESET_ENABLE_LOCK
@@ -308,4 +307,22 @@ config SOC_INTEL_GFX_FRAMEBUFFER_OFFSET
hex
default 0x800000
+choice
+ prompt "Multiprocessor (MP) Initialization configuration to use"
+ default MTL_USE_FSP_MP_INIT
+
+config MTL_USE_FSP_MP_INIT
+ bool "Use FSP MP init"
+ select MP_SERVICES_PPI_V2
+ help
+ Upon selection, coreboot brings APs from reset and the FSP runs feature programming.
+
+config MTL_USE_COREBOOT_MP_INIT
+ bool "Use coreboot MP init"
+ select RELOAD_MICROCODE_PATCH
+ help
+ Upon selection, coreboot performs MP Init.
+
+endchoice
+
endif
diff --git a/src/soc/intel/meteorlake/fsp_params.c b/src/soc/intel/meteorlake/fsp_params.c
index f77182a344..39e374b9ae 100644
--- a/src/soc/intel/meteorlake/fsp_params.c
+++ b/src/soc/intel/meteorlake/fsp_params.c
@@ -133,9 +133,21 @@ static void fill_fsps_cpu_params(FSP_S_CONFIG *s_cfg,
s_cfg->MicrocodeRegionSize = (uint32_t)microcode_len;
}
- /* Use coreboot MP PPI services if Kconfig is enabled */
- if (CONFIG(USE_INTEL_FSP_TO_CALL_COREBOOT_PUBLISH_MP_PPI))
+ if (CONFIG(MTL_USE_FSP_MP_INIT)) {
+ /*
+ * Use FSP running MP PPI services to perform CPU feature programming
+ * if Kconfig is enabled
+ */
s_cfg->CpuMpPpi = (uintptr_t) mp_fill_ppi_services_data();
+ } else {
+ /* Use coreboot native driver to perform MP init by default */
+ s_cfg->CpuMpPpi = (uintptr_t)NULL;
+ /*
+ * FIXME: Bring back SkipMpInit UPD in MTL FSP to let coreboot perform
+ * AP programming independently.
+ */
+ // s_cfg->SkipMpInit = !CONFIG(USE_INTEL_FSP_MP_INIT);
+ }
}