diff --git a/boards/arm/lpcxpresso11u68/lpcxpresso11u68-pinctrl.dtsi b/boards/arm/lpcxpresso11u68/lpcxpresso11u68-pinctrl.dtsi
new file mode 100644
index 00000000000..b219950ced9
--- /dev/null
+++ b/boards/arm/lpcxpresso11u68/lpcxpresso11u68-pinctrl.dtsi
@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) 2022, NXP
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <dt-bindings/pinctrl/lpc11u6x-pinctrl.h>
+
+&pinctrl {
+	uart0_default: uart0_default {
+		group0 {
+			pinmux = <U0_RXD_PIO0_18>,
+				<U0_TXD_PIO0_19>;
+			nxp,disable-analog-filter;
+		};
+	};
+
+	uart4_default: uart4_default {
+		group0 {
+			pinmux = <U4_RXD_PIO2_11>,
+				<U4_TXD_PIO2_12>;
+			nxp,disable-analog-filter;
+		};
+	};
+
+	i2c0_default: i2c0_default {
+		group0 {
+			pinmux = <I2C0_SCL_PIO0_4>,
+				<I2C0_SDA_PIO0_5>;
+			nxp,i2c-mode;
+			nxp,i2c-filter = "slow";
+			nxp,disable-analog-filter;
+		};
+	};
+
+	i2c0_fast: i2c0_fast{
+		group0 {
+			pinmux = <I2C0_SCL_PIO0_4>,
+				<I2C0_SDA_PIO0_5>;
+			nxp,i2c-mode;
+			nxp,i2c-filter = "fast";
+			nxp,disable-analog-filter;
+		};
+	};
+
+	syscon_default: syscon_default {
+		group0 {
+			pinmux = <XTALOUT_PIO2_1>,
+				<XTALIN_PIO2_0>;
+			nxp,analog-mode;
+		};
+	};
+};
diff --git a/boards/arm/lpcxpresso11u68/lpcxpresso11u68.dts b/boards/arm/lpcxpresso11u68/lpcxpresso11u68.dts
index 1ca08d46708..2ddddcd49c4 100644
--- a/boards/arm/lpcxpresso11u68/lpcxpresso11u68.dts
+++ b/boards/arm/lpcxpresso11u68/lpcxpresso11u68.dts
@@ -7,7 +7,8 @@
 /dts-v1/;
 
 #include <nxp/nxp_lpc11u68.dtsi>
-#include <zephyr/dt-bindings/pinctrl/lpc11u6x-pinctrl.h>
+
+#include "lpcxpresso11u68-pinctrl.dtsi"
 
 / {
 	model = "NXP LPCXPRESSO11U68 board";
@@ -90,6 +91,8 @@
 &uart0 {
 	pinmuxs = <&pinmux1 26 IOCON_FUNC2>, <&pinmux1 27 IOCON_FUNC2>;
 	pinmux-names = "RXD", "TXD";
+	pinctrl-0 = <&uart0_default>;
+	pinctrl-names = "default";
 	current-speed = <115200>;
 	status = "okay";
 };
@@ -97,6 +100,8 @@
 arduino_serial: &uart4 {
 	pinmuxs = <&pinmux2 11 IOCON_FUNC1>, <&pinmux2 12 IOCON_FUNC1>;
 	pinmux-names = "RXD", "TXD";
+	pinctrl-0 = <&uart4_default>;
+	pinctrl-names = "default";
 	current-speed = <115200>;
 	status = "okay";
 };
@@ -104,6 +109,9 @@ arduino_serial: &uart4 {
 arduino_i2c: &i2c0 {
 	pinmuxs = <&pinmux0 4 IOCON_FUNC1>,
 	<&pinmux0 5 IOCON_FUNC1>;
+	pinctrl-0 = <&i2c0_default>;
+	pinctrl-1 = <&i2c0_fast>;
+	pinctrl-names = "default", "fast-plus";
 	pinmux-names = "SCL", "SDA";
 	status = "okay";
 };
@@ -123,3 +131,8 @@ arduino_i2c: &i2c0 {
 &gpio2 {
 	status = "okay";
 };
+
+&syscon {
+	pinctrl-0 = <&syscon_default>;
+	pinctrl-names = "default";
+};