diff -ruN linux-3.14.16/arch/arm/boot/dts/am335x-lctr-b2xx-ntnu-gpio.dts linux-3.14.16.kk/arch/arm/boot/dts/am335x-lctr-b2xx-ntnu-gpio.dts
--- linux-3.14.16/arch/arm/boot/dts/am335x-lctr-b2xx-ntnu-gpio.dts	1970-01-01 01:00:00.000000000 +0100
+++ linux-3.14.16.kk/arch/arm/boot/dts/am335x-lctr-b2xx-ntnu-gpio.dts	2014-10-23 13:22:18.216000000 +0200
@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2014 Universidade do Porto - Faculdade de Engenharia
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include "am335x-lctr-b2xx.dts"
+
+
+/ {
+	/* GPIO. */
+	ntnu_gpio {
+		pinctrl-names = "default";
+		pinctrl-0 = <&gpio_pins>;
+		compatible = "ntnu-gpio";
+		status = "okay";
+	};
+};
+
+&am33xx_pinmux {
+        pinctrl-names = "default";
+        pinctrl-0 = <&board_pins>;
+
+
+
+	/* GPIO on UART2-pins. */
+	gpio_pins: pinmux_gpio_pins {
+		pinctrl-single,pins = <
+			/* GPIO 2 - Pin 22 */
+			0x150 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			/* GPIO 3 - Pin 21 */
+			0x154 (PIN_OUTPUT_PULLDOWN | MUX_MODE7)
+		>;
+	};
+
+	/* UART4. */
+	uart4_pins: pinmux_uart4_pins {
+		pinctrl-single,pins = <
+			/* uart4_rxd */
+			0x70 (PIN_INPUT_PULLUP | MUX_MODE6)
+			/* uart4_txd */
+			0x74 (PIN_OUTPUT_PULLDOWN | MUX_MODE6)
+		>;
+	};
+};
+
+
+
+/* Enable UART4. */
+&uart4 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart4_pins>;
+	status = "okay";
+};
diff -ruN linux-3.14.16/arch/arm/boot/dts/am335x-lctr-b2xx-ntnu-uart.dts linux-3.14.16.kk/arch/arm/boot/dts/am335x-lctr-b2xx-ntnu-uart.dts
--- linux-3.14.16/arch/arm/boot/dts/am335x-lctr-b2xx-ntnu-uart.dts	1970-01-01 01:00:00.000000000 +0100
+++ linux-3.14.16.kk/arch/arm/boot/dts/am335x-lctr-b2xx-ntnu-uart.dts	2014-10-20 21:35:33.608000000 +0200
@@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2014 Universidade do Porto - Faculdade de Engenharia
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include "am335x-lctr-b2xx.dts"
+
+
+
+&am33xx_pinmux {
+        pinctrl-names = "default";
+        pinctrl-0 = <&board_pins>;
+
+
+
+	/* UART2. */
+	uart2_pins: pinmux_uart2_pins {
+		pinctrl-single,pins = <
+			/* uart2_rxd */
+			0x150 (PIN_INPUT_PULLUP | MUX_MODE1)
+			/* uart2_txd */
+			0x154 (PIN_OUTPUT_PULLDOWN | MUX_MODE1)
+		>;
+	};
+
+	/* UART4. */
+	uart4_pins: pinmux_uart4_pins {
+		pinctrl-single,pins = <
+			/* uart4_rxd */
+			0x70 (PIN_INPUT_PULLUP | MUX_MODE6)
+			/* uart4_txd */
+			0x74 (PIN_OUTPUT_PULLDOWN | MUX_MODE6)
+		>;
+	};
+};
+
+/* Enable UART2. */
+&uart2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart2_pins>;
+	status = "okay";
+};
+
+/* Enable UART4. */
+&uart4 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart4_pins>;
+	status = "okay";
+};
diff -ruN linux-3.14.16/arch/arm/boot/dts/Makefile linux-3.14.16.kk/arch/arm/boot/dts/Makefile
--- linux-3.14.16/arch/arm/boot/dts/Makefile	2014-08-08 01:50:59.000000000 +0200
+++ linux-3.14.16.kk/arch/arm/boot/dts/Makefile	2014-10-23 13:24:50.292000000 +0200
@@ -227,6 +227,8 @@
 	am335x-bone.dtb \
 	am335x-boneblack.dtb \
 	am335x-nano.dtb \
+	am335x-lctr-b2xx-ntnu-uart.dtb \
+	am335x-lctr-b2xx-ntnu-gpio.dtb \
 	am335x-base0033.dtb \
 	am3517-evm.dtb \
 	am3517_mt_ventoux.dtb \