diff --git a/src/soc/intel/jasperlake/chip.h b/src/soc/intel/jasperlake/chip.h
index 3983d03..a6932bc 100644
--- a/src/soc/intel/jasperlake/chip.h
+++ b/src/soc/intel/jasperlake/chip.h
@@ -110,6 +110,9 @@
 	 * clksrc. */
 	uint8_t PcieClkSrcClkReq[CONFIG_MAX_PCIE_CLOCKS];
 
+	/* Probe CLKREQ# signal before enabling CLKREQ# based power management.*/
+	uint8_t PcieRpClkReqDetect[CONFIG_MAX_ROOT_PORTS];
+
 	/* PCIe RP L1 substate */
 	enum L1_substates_control {
 		L1_SS_FSP_DEFAULT,
diff --git a/src/soc/intel/jasperlake/fsp_params.c b/src/soc/intel/jasperlake/fsp_params.c
index 19b9300..f525fd8 100644
--- a/src/soc/intel/jasperlake/fsp_params.c
+++ b/src/soc/intel/jasperlake/fsp_params.c
@@ -104,6 +104,10 @@
 	/* disable Legacy PME */
 	memset(params->PcieRpPmSci, 0, sizeof(params->PcieRpPmSci));
 
+	/* Enable ClkReqDetect for enabled port */
+	memcpy(params->PcieRpClkReqDetect, config->PcieRpClkReqDetect,
+		sizeof(config->PcieRpClkReqDetect));
+
 	/* USB configuration */
 	for (i = 0; i < ARRAY_SIZE(config->usb2_ports); i++) {