diff --git a/arch/arm64/boot/dts/ti/k3-am625-sk.dts b/arch/arm64/boot/dts/ti/k3-am625-sk.dts
index 83525949aafd..f27cac1fac02 100644
--- a/arch/arm64/boot/dts/ti/k3-am625-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am625-sk.dts
@@ -147,6 +147,7 @@ AM62X_IOPAD(0x174, PIN_OUTPUT, 0) /* (AD21) RGMII2_TD2 */
 			AM62X_IOPAD(0x178, PIN_OUTPUT, 0) /* (AC20) RGMII2_TD3 */
 			AM62X_IOPAD(0x168, PIN_OUTPUT, 0) /* (AE21) RGMII2_TXC */
 			AM62X_IOPAD(0x164, PIN_OUTPUT, 0) /* (AA19) RGMII2_TX_CTL */
+			AM62X_IOPAD(0x1F0, PIN_OUTPUT, 1) /* (A18) EXT_REFCLK1.SYNC1_OUT Leon: added here for test */
 		>;
 	};
 
@@ -371,6 +372,8 @@ cpsw_cpts: cpsw-cpts {
 		pinctrl-single,pins = <
 			/* pps [cpsw cpts genf1] in17 -> out12 [cpsw cpts hw3_push] */
 			K3_TS_OFFSET(12, 17)
+			/* pps [cpsw cpts genf1] in17 -> out21 [cpsw cpts SYNC1_OUT] */
+			K3_TS_OFFSET(21, 17)
 			>;
 	};
 };