diff --git a/arch/arm64/boot/dts/renesas/rzg2lc-smarc-som.dtsi b/arch/arm64/boot/dts/renesas/rzg2lc-smarc-som.dtsi
index 5e4209d6fb42..664311fd2098 100644
--- a/arch/arm64/boot/dts/renesas/rzg2lc-smarc-som.dtsi
+++ b/arch/arm64/boot/dts/renesas/rzg2lc-smarc-som.dtsi
@@ -128,22 +128,28 @@ &ostm2 {
 
 &pinctrl {
 	eth0_pins: eth0 {
-		pinmux = <RZG2L_PORT_PINMUX(28, 1, 1)>, /* ET0_LINKSTA */
-			 <RZG2L_PORT_PINMUX(27, 1, 1)>, /* ET0_MDC */
-			 <RZG2L_PORT_PINMUX(28, 0, 1)>, /* ET0_MDIO */
-			 <RZG2L_PORT_PINMUX(20, 0, 1)>, /* ET0_TXC */
-			 <RZG2L_PORT_PINMUX(20, 1, 1)>, /* ET0_TX_CTL */
-			 <RZG2L_PORT_PINMUX(20, 2, 1)>, /* ET0_TXD0 */
-			 <RZG2L_PORT_PINMUX(21, 0, 1)>, /* ET0_TXD1 */
-			 <RZG2L_PORT_PINMUX(21, 1, 1)>, /* ET0_TXD2 */
-			 <RZG2L_PORT_PINMUX(22, 0, 1)>, /* ET0_TXD3 */
-			 <RZG2L_PORT_PINMUX(24, 0, 1)>, /* ET0_RXC */
-			 <RZG2L_PORT_PINMUX(24, 1, 1)>, /* ET0_RX_CTL */
-			 <RZG2L_PORT_PINMUX(25, 0, 1)>, /* ET0_RXD0 */
-			 <RZG2L_PORT_PINMUX(25, 1, 1)>, /* ET0_RXD1 */
-			 <RZG2L_PORT_PINMUX(26, 0, 1)>, /* ET0_RXD2 */
-			 <RZG2L_PORT_PINMUX(26, 1, 1)>, /* ET0_RXD3 */
-			 <RZG2L_PORT_PINMUX(0, 0, 1)>;  /* IRQ0 */
+		txc {
+			pinmux = <RZG2L_PORT_PINMUX(20, 0, 1)>; /* ET0_TXC */
+			output-enable;
+		};
+
+		mux {
+			pinmux = <RZG2L_PORT_PINMUX(28, 1, 1)>, /* ET0_LINKSTA */
+				 <RZG2L_PORT_PINMUX(27, 1, 1)>, /* ET0_MDC */
+				 <RZG2L_PORT_PINMUX(28, 0, 1)>, /* ET0_MDIO */
+				 <RZG2L_PORT_PINMUX(20, 1, 1)>, /* ET0_TX_CTL */
+				 <RZG2L_PORT_PINMUX(20, 2, 1)>, /* ET0_TXD0 */
+				 <RZG2L_PORT_PINMUX(21, 0, 1)>, /* ET0_TXD1 */
+				 <RZG2L_PORT_PINMUX(21, 1, 1)>, /* ET0_TXD2 */
+				 <RZG2L_PORT_PINMUX(22, 0, 1)>, /* ET0_TXD3 */
+				 <RZG2L_PORT_PINMUX(24, 0, 1)>, /* ET0_RXC */
+				 <RZG2L_PORT_PINMUX(24, 1, 1)>, /* ET0_RX_CTL */
+				 <RZG2L_PORT_PINMUX(25, 0, 1)>, /* ET0_RXD0 */
+				 <RZG2L_PORT_PINMUX(25, 1, 1)>, /* ET0_RXD1 */
+				 <RZG2L_PORT_PINMUX(26, 0, 1)>, /* ET0_RXD2 */
+				 <RZG2L_PORT_PINMUX(26, 1, 1)>, /* ET0_RXD3 */
+				 <RZG2L_PORT_PINMUX(0, 0, 1)>;  /* IRQ0 */
+		};
 	};
 
 	gpio-sd0-pwr-en-hog {