diff --git a/arch/arm/boot/dts/imx51-zii-scu3-esb.dts b/arch/arm/boot/dts/imx51-zii-scu3-esb.dts
index 07bc5fc05076..a7ede537e12a 100644
--- a/arch/arm/boot/dts/imx51-zii-scu3-esb.dts
+++ b/arch/arm/boot/dts/imx51-zii-scu3-esb.dts
@@ -221,6 +221,8 @@
 			interrupts = <20 IRQ_TYPE_LEVEL_HIGH>;
 			interrupt-controller;
 			#interrupt-cells = <2>;
+			pinctrl-names = "default";
+			pinctrl-0 = <&pinctrl_switch>;
 
 			ports {
 				#address-cells = <1>;
@@ -426,6 +428,12 @@
 		>;
 	};
 
+	pinctrl_switch: switchgrp {
+		fsl,pins = <
+			MX51_PAD_AUD3_BB_CK__GPIO4_20		0xc5
+		>;
+	};
+
 	pinctrl_uart1: uart1grp {
 		fsl,pins = <
 			MX51_PAD_UART1_RXD__UART1_RXD		0x1c5