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-rw-r--r--src/soc/intel/tigerlake/fsp_params.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/soc/intel/tigerlake/fsp_params.c b/src/soc/intel/tigerlake/fsp_params.c
index 887241b5c2..3427a61792 100644
--- a/src/soc/intel/tigerlake/fsp_params.c
+++ b/src/soc/intel/tigerlake/fsp_params.c
@@ -365,6 +365,10 @@ void platform_fsp_silicon_init_params_cb(FSPS_UPD *supd)
/* EnableMultiPhaseSiliconInit for running MultiPhaseSiInit */
params->EnableMultiPhaseSiliconInit = 1;
+
+ /* Disable C1 C-state Demotion */
+ params->C1StateAutoDemotion = 0;
+
mainboard_silicon_init_params(params);
}