diff --git a/boards/arm/mps3/mps3-pinctrl.dtsi b/boards/arm/mps3/mps3-pinctrl.dtsi
new file mode 100644
index 00000000000..17b143ae644
--- /dev/null
+++ b/boards/arm/mps3/mps3-pinctrl.dtsi
@@ -0,0 +1,68 @@
+/*
+ * Copyright 2025 Arm Limited and/or its affiliates <open-source-office@arm.com>
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <zephyr/dt-bindings/pinctrl/arm-mps3-pinctrl.h>
+
+&pinctrl {
+	/omit-if-no-ref/  uart3_default: uart3_default {
+		group1 {
+			pinmux = <UART3_TXD_EXP>;
+		};
+
+		group2 {
+			pinmux = <UART3_RXD_EXP>;
+			input-enable;
+		};
+	};
+
+	/omit-if-no-ref/ uart4_default: uart4_default {
+		group1 {
+			pinmux = <UART4_TXD_EXP>;
+		};
+
+		group2 {
+			pinmux = <UART4_RXD_EXP>;
+			input-enable;
+		};
+	};
+
+	/omit-if-no-ref/ spi3_default: spi3_default {
+		group1 {
+			pinmux = <SPI3_SS_EXP>, <SPI3_MOSI_EXP>,
+				 <SPI3_SCK_EXP>;
+		};
+
+		group2 {
+			pinmux = <SPI3_MISO_EXP>;
+			input-enable;
+		};
+	};
+
+	/omit-if-no-ref/ spi4_default: spi4_default {
+		group1 {
+			pinmux = <SPI4_SS_EXP>, <SPI4_MOSI_EXP>, <SPI4_SCK_EXP>;
+		};
+
+		group2 {
+			pinmux = <SPI4_MISO_EXP>;
+			input-enable;
+		};
+	};
+
+	/omit-if-no-ref/ sbcon2_default: sbcon2_default {
+		group1 {
+			pinmux = <SBCON2_SDA_EXP>, <SBCON2_SCL_EXP>;
+			input-enable;
+		};
+	};
+
+	/omit-if-no-ref/ sbcon3_default: sbcon3_default {
+		group1 {
+			pinmux = <SBCON3_SDA_EXP>, <SBCON3_SCL_EXP>;
+			input-enable;
+		};
+	};
+};
diff --git a/boards/arm/mps3/mps3_common.dtsi b/boards/arm/mps3/mps3_common.dtsi
index 798af263310..3348101bc72 100644
--- a/boards/arm/mps3/mps3_common.dtsi
+++ b/boards/arm/mps3/mps3_common.dtsi
@@ -1,5 +1,5 @@
 /*
- * Copyright 2024 Arm Limited and/or its affiliates <open-source-office@arm.com>
+ * Copyright 2024-2025 Arm Limited and/or its affiliates <open-source-office@arm.com>
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -104,3 +104,4 @@
 &nvic {
 	arm,num-irq-priority-bits = <3>;
 };
+#include "mps3-pinctrl.dtsi"
diff --git a/boards/arm/mps3/mps3_common_soc_peripheral.dtsi b/boards/arm/mps3/mps3_common_soc_peripheral.dtsi
index 4fc90627eec..d46f6c602cf 100644
--- a/boards/arm/mps3/mps3_common_soc_peripheral.dtsi
+++ b/boards/arm/mps3/mps3_common_soc_peripheral.dtsi
@@ -1,6 +1,6 @@
 /*
  * Copyright (c) 2019-2021 Linaro Limited
- * Copyright 2024 Arm Limited and/or its affiliates <open-source-office@arm.com>
+ * Copyright 2024-2025 Arm Limited and/or its affiliates <open-source-office@arm.com>
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -85,6 +85,8 @@ spi_shield0: spi@9203000 {
 	clocks = <&sysclk>;
 	#address-cells = <1>;
 	#size-cells = <0>;
+	pinctrl-0 = <&spi3_default>;
+	pinctrl-names = "default";
 };
 
 spi_shield1: spi@9204000 {
@@ -95,6 +97,8 @@ spi_shield1: spi@9204000 {
 	clocks = <&sysclk>;
 	#address-cells = <1>;
 	#size-cells = <0>;
+	pinctrl-0 = <&spi4_default>;
+	pinctrl-names = "default";
 };
 
 i2c_shield0: i2c@9205000 {
@@ -103,6 +107,8 @@ i2c_shield0: i2c@9205000 {
 	#address-cells = <1>;
 	#size-cells = <0>;
 	reg = <0x9205000 0x1000>;
+	pinctrl-0 = <&sbcon2_default>;
+	pinctrl-names = "default";
 };
 
 i2c_shield1: i2c@9206000 {
@@ -111,6 +117,8 @@ i2c_shield1: i2c@9206000 {
 	#address-cells = <1>;
 	#size-cells = <0>;
 	reg = <0x9206000 0x1000>;
+	pinctrl-0 = <&sbcon3_default>;
+	pinctrl-names = "default";
 };
 
 i2c_ddr4_eeprom: i2c@9208000 {
@@ -183,6 +191,8 @@ uart3: uart@9306000 {
 	interrupt-names = "tx", "rx";
 	clocks = <&sysclk>;
 	current-speed = <115200>;
+	pinctrl-0 = <&uart3_default>;
+	pinctrl-names = "default";
 };
 
 uart4: uart@9307000 {
@@ -192,6 +202,8 @@ uart4: uart@9307000 {
 	interrupt-names = "tx", "rx";
 	clocks = <&sysclk>;
 	current-speed = <115200>;
+	pinctrl-0 = <&uart4_default>;
+	pinctrl-names = "default";
 };
 
 uart5: uart@9308000 {
@@ -203,3 +215,8 @@ uart5: uart@9308000 {
 	clocks = <&sysclk>;
 	current-speed = <115200>;
 };
+
+pinctrl: pinctrl {
+	compatible = "arm,mps3-pinctrl";
+	status = "okay";
+};
diff --git a/boards/arm/mps3/mps3_corstone300_an547.dts b/boards/arm/mps3/mps3_corstone300_an547.dts
index ae71ddf7282..55188180f0c 100644
--- a/boards/arm/mps3/mps3_corstone300_an547.dts
+++ b/boards/arm/mps3/mps3_corstone300_an547.dts
@@ -1,6 +1,6 @@
 /*
  * Copyright (c) 2018-2021 Linaro Limited
- * Copyright 2024 Arm Limited and/or its affiliates <open-source-office@arm.com>
+ * Copyright 2024-2025 Arm Limited and/or its affiliates <open-source-office@arm.com>
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -11,7 +11,6 @@
 #include <zephyr/dt-bindings/i2c/i2c.h>
 #include <zephyr/dt-bindings/input/input-event-codes.h>
 #include <mem.h>
-#include "mps3_common.dtsi"
 
 / {
 	compatible = "arm,mps3-an547";
@@ -95,3 +94,4 @@
 		};
 	};
 };
+#include "mps3_common.dtsi"
diff --git a/boards/arm/mps3/mps3_corstone300_an547_ns.dts b/boards/arm/mps3/mps3_corstone300_an547_ns.dts
index 5a4e0031946..9540682e37b 100644
--- a/boards/arm/mps3/mps3_corstone300_an547_ns.dts
+++ b/boards/arm/mps3/mps3_corstone300_an547_ns.dts
@@ -1,6 +1,6 @@
 /*
  * Copyright (c) 2018-2021 Linaro Limited
- * Copyright 2024 Arm Limited and/or its affiliates <open-source-office@arm.com>
+ * Copyright 2024-2025 Arm Limited and/or its affiliates <open-source-office@arm.com>
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -11,7 +11,6 @@
 #include <zephyr/dt-bindings/i2c/i2c.h>
 #include <zephyr/dt-bindings/input/input-event-codes.h>
 #include <mem.h>
-#include "mps3_common.dtsi"
 
 / {
 	compatible = "arm,mps3-an547";
@@ -100,3 +99,4 @@
 		};
 	};
 };
+#include "mps3_common.dtsi"
diff --git a/boards/arm/mps3/mps3_corstone300_an552.dts b/boards/arm/mps3/mps3_corstone300_an552.dts
index 7c7ec8d02a5..51aabcda2fa 100644
--- a/boards/arm/mps3/mps3_corstone300_an552.dts
+++ b/boards/arm/mps3/mps3_corstone300_an552.dts
@@ -1,5 +1,5 @@
 /*
- * Copyright 2024 Arm Limited and/or its affiliates <open-source-office@arm.com>
+ * Copyright 2024-2025 Arm Limited and/or its affiliates <open-source-office@arm.com>
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -10,7 +10,6 @@
 #include <zephyr/dt-bindings/i2c/i2c.h>
 #include <zephyr/dt-bindings/input/input-event-codes.h>
 #include <mem.h>
-#include "mps3_common.dtsi"
 
 / {
 	compatible = "arm,mps3-an552";
@@ -94,3 +93,4 @@
 		};
 	};
 };
+#include "mps3_common.dtsi"
diff --git a/boards/arm/mps3/mps3_corstone300_an552_ns.dts b/boards/arm/mps3/mps3_corstone300_an552_ns.dts
index 17e9d259bca..7b8bab99ff6 100644
--- a/boards/arm/mps3/mps3_corstone300_an552_ns.dts
+++ b/boards/arm/mps3/mps3_corstone300_an552_ns.dts
@@ -1,5 +1,5 @@
 /*
- * Copyright 2024 Arm Limited and/or its affiliates <open-source-office@arm.com>
+ * Copyright 2024-2025 Arm Limited and/or its affiliates <open-source-office@arm.com>
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -10,7 +10,6 @@
 #include <zephyr/dt-bindings/i2c/i2c.h>
 #include <zephyr/dt-bindings/input/input-event-codes.h>
 #include <mem.h>
-#include "mps3_common.dtsi"
 
 / {
 	compatible = "arm,mps3-an552";
@@ -99,3 +98,4 @@
 		};
 	};
 };
+#include "mps3_common.dtsi"
diff --git a/boards/arm/mps3/mps3_corstone300_fvp.dts b/boards/arm/mps3/mps3_corstone300_fvp.dts
index eff11378c61..886b8d77629 100644
--- a/boards/arm/mps3/mps3_corstone300_fvp.dts
+++ b/boards/arm/mps3/mps3_corstone300_fvp.dts
@@ -1,5 +1,5 @@
 /*
- * Copyright 2024 Arm Limited and/or its affiliates <open-source-office@arm.com>
+ * Copyright 2024-2025 Arm Limited and/or its affiliates <open-source-office@arm.com>
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -10,7 +10,6 @@
 #include <zephyr/dt-bindings/i2c/i2c.h>
 #include <zephyr/dt-bindings/input/input-event-codes.h>
 #include <mem.h>
-#include "mps3_common.dtsi"
 
 / {
 	compatible = "arm,mps3-fvp";
@@ -94,3 +93,4 @@
 		};
 	};
 };
+#include "mps3_common.dtsi"
diff --git a/boards/arm/mps3/mps3_corstone300_fvp_ns.dts b/boards/arm/mps3/mps3_corstone300_fvp_ns.dts
index 8a9704cae3a..d2be764eb50 100644
--- a/boards/arm/mps3/mps3_corstone300_fvp_ns.dts
+++ b/boards/arm/mps3/mps3_corstone300_fvp_ns.dts
@@ -1,5 +1,5 @@
 /*
- * Copyright 2024 Arm Limited and/or its affiliates <open-source-office@arm.com>
+ * Copyright 2024-2025 Arm Limited and/or its affiliates <open-source-office@arm.com>
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -10,7 +10,6 @@
 #include <zephyr/dt-bindings/i2c/i2c.h>
 #include <zephyr/dt-bindings/input/input-event-codes.h>
 #include <mem.h>
-#include "mps3_common.dtsi"
 
 / {
 	compatible = "arm,mps3-fvp";
@@ -99,3 +98,4 @@
 		};
 	};
 };
+#include "mps3_common.dtsi"
diff --git a/boards/arm/mps3/mps3_corstone310_an555.dts b/boards/arm/mps3/mps3_corstone310_an555.dts
index a34fd0e4227..47c2a9626a8 100644
--- a/boards/arm/mps3/mps3_corstone310_an555.dts
+++ b/boards/arm/mps3/mps3_corstone310_an555.dts
@@ -10,7 +10,6 @@
 #include <zephyr/dt-bindings/i2c/i2c.h>
 #include <zephyr/dt-bindings/input/input-event-codes.h>
 #include <mem.h>
-#include "mps3_common.dtsi"
 
 / {
 	compatible = "arm,mps3-an555";
@@ -94,3 +93,4 @@
 		};
 	};
 };
+#include "mps3_common.dtsi"
diff --git a/boards/arm/mps3/mps3_corstone310_an555_ns.dts b/boards/arm/mps3/mps3_corstone310_an555_ns.dts
index 786ca6d9eb1..4a910777e11 100644
--- a/boards/arm/mps3/mps3_corstone310_an555_ns.dts
+++ b/boards/arm/mps3/mps3_corstone310_an555_ns.dts
@@ -1,5 +1,5 @@
 /*
- * Copyright 2024 Arm Limited and/or its affiliates <open-source-office@arm.com>
+ * Copyright 2024-2025 Arm Limited and/or its affiliates <open-source-office@arm.com>
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -10,7 +10,6 @@
 #include <zephyr/dt-bindings/i2c/i2c.h>
 #include <zephyr/dt-bindings/input/input-event-codes.h>
 #include <mem.h>
-#include "mps3_common.dtsi"
 
 / {
 	compatible = "arm,mps3-an555";
@@ -99,3 +98,4 @@
 		};
 	};
 };
+#include "mps3_common.dtsi"
diff --git a/boards/arm/mps3/mps3_corstone310_fvp.dts b/boards/arm/mps3/mps3_corstone310_fvp.dts
index 596e0e6e637..585a7297d72 100644
--- a/boards/arm/mps3/mps3_corstone310_fvp.dts
+++ b/boards/arm/mps3/mps3_corstone310_fvp.dts
@@ -10,7 +10,6 @@
 #include <zephyr/dt-bindings/i2c/i2c.h>
 #include <zephyr/dt-bindings/input/input-event-codes.h>
 #include <mem.h>
-#include "mps3_common.dtsi"
 
 / {
 	compatible = "arm,mps3-fvp";
@@ -94,3 +93,4 @@
 		};
 	};
 };
+#include "mps3_common.dtsi"
diff --git a/boards/arm/mps3/mps3_corstone310_fvp_ns.dts b/boards/arm/mps3/mps3_corstone310_fvp_ns.dts
index acc9b5fb737..9cd73ee3959 100644
--- a/boards/arm/mps3/mps3_corstone310_fvp_ns.dts
+++ b/boards/arm/mps3/mps3_corstone310_fvp_ns.dts
@@ -1,5 +1,5 @@
 /*
- * Copyright 2024 Arm Limited and/or its affiliates <open-source-office@arm.com>
+ * Copyright 2024-2025 Arm Limited and/or its affiliates <open-source-office@arm.com>
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -10,7 +10,6 @@
 #include <zephyr/dt-bindings/i2c/i2c.h>
 #include <zephyr/dt-bindings/input/input-event-codes.h>
 #include <mem.h>
-#include "mps3_common.dtsi"
 
 / {
 	compatible = "arm,mps3-fvp";
@@ -99,3 +98,4 @@
 		};
 	};
 };
+#include "mps3_common.dtsi"