soc/intel/common/block/cpu: Add option to skip coreboot AP init

SoC users from IOTG team is looking forward for a solution to skip
coreboot AP initialization flow and make use of FSPS-UPD to
perform AP reset.

TEST=Assign use_fsp_mp_init=1 to ensure coreboot is not bringing APs
out of reset.

Change-Id: Ibc8cd411e802fb682436a933073922b2693ba994
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/26644
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>

1 files changed, 15 insertions, 0 deletions

diff --git a/src/soc/intel/common/block/chip/chip.c b/src/soc/intel/common/block/chip/chip.c
index cfec4eca39..aecf060e3f 100644
--- a/src/soc/intel/common/block/chip/chip.c
+++ b/src/soc/intel/common/block/chip/chip.c
@@ -32,3 +32,18 @@ const struct soc_intel_common_config *chip_get_common_soc_structure(void)
 
 	return soc_config;
 }
+
+/*
+ * This function will get MP Init config
+ *
+ * Return values:
+ * 0 = Make use of coreboot MP Init
+ * 1 = Make use of FSP MP Init
+ */
+int chip_get_fsp_mp_init(void)
+{
+	const struct soc_intel_common_config *common_config;
+	common_config = chip_get_common_soc_structure();
+
+	return common_config->use_fsp_mp_init;
+}