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diff --git a/arch/arm/boot/dts/kirkwood-b3.dts b/arch/arm/boot/dts/kirkwood-b3.dts
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+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Device Tree file for Excito Bubba B3
+ *
+ * Copyright (C) 2013, Andrew Lunn <andrew@lunn.ch>
+ *
+ *
+ * Note: This requires a new'ish version of u-boot, which disables the
+ * L2 cache. If your B3 silently fails to boot, u-boot is probably too
+ * old. Either upgrade, or consider the following email:
+ *
+ * https://lists.debian.org/debian-arm/2012/08/msg00128.html
+ */
+
+/dts-v1/;
+
+#include "kirkwood.dtsi"
+#include "kirkwood-6281.dtsi"
+
+/ {
+ model = "Excito B3";
+ compatible = "excito,b3", "marvell,kirkwood-88f6281", "marvell,kirkwood";
+ memory { /* 512 MB */
+ device_type = "memory";
+ reg = <0x00000000 0x20000000>;
+ };
+
+ chosen {
+ bootargs = "console=ttyS0,115200n8 earlyprintk";
+ stdout-path = &uart0;
+ };
+
+ ocp@f1000000 {
+ pinctrl: pin-controller@10000 {
+ pmx_button_power: pmx-button-power {
+ marvell,pins = "mpp39";
+ marvell,function = "gpio";
+ };
+ pmx_led_green: pmx-led-green {
+ marvell,pins = "mpp38";
+ marvell,function = "gpio";
+ };
+ pmx_led_red: pmx-led-red {
+ marvell,pins = "mpp41";
+ marvell,function = "gpio";
+ };
+ pmx_led_blue: pmx-led-blue {
+ marvell,pins = "mpp42";
+ marvell,function = "gpio";
+ };
+ pmx_beeper: pmx-beeper {
+ marvell,pins = "mpp40";
+ marvell,function = "gpio";
+ };
+ };
+
+ spi@10600 {
+ status = "okay";
+
+ m25p16@0 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "st,m25p16", "jedec,spi-nor";
+ reg = <0>;
+ spi-max-frequency = <40000000>;
+ mode = <0>;
+
+ partition@0 {
+ reg = <0x0 0xc0000>;
+ label = "u-boot";
+ };
+
+ partition@c0000 {
+ reg = <0xc0000 0x20000>;
+ label = "u-boot env";
+ };
+
+ partition@e0000 {
+ reg = <0xe0000 0x120000>;
+ label = "data";
+ };
+ };
+ };
+
+ i2c@11000 {
+ status = "okay";
+ /*
+ * There is something on the bus at address 0x64.
+ * Not yet identified what it is, maybe the eeprom
+ * for the Atheros WiFi chip?
+ */
+ };
+
+
+ serial@12000 {
+ /* Internal on test pins, 3.3v TTL
+ * UART0_RX = Testpoint 65
+ * UART0_TX = Testpoint 66
+ * See the Excito Wiki for more details.
+ */
+ status = "okay";
+ };
+
+ sata@80000 {
+ /* One internal, the second as eSATA */
+ status = "okay";
+ nr-ports = <2>;
+ };
+ };
+
+ gpio-leds {
+ /*
+ * There is one LED "port" on the front and the colours
+ * mix together giving some interesting combinations.
+ */
+ compatible = "gpio-leds";
+ pinctrl-0 = < &pmx_led_green &pmx_led_red
+ &pmx_led_blue >;
+ pinctrl-names = "default";
+
+ programming_led {
+ label = "bubba3:green:programming";
+ gpios = <&gpio1 6 GPIO_ACTIVE_HIGH>;
+ default-state = "off";
+ };
+
+ error_led {
+ label = "bubba3:red:error";
+ gpios = <&gpio1 9 GPIO_ACTIVE_HIGH>;
+ };
+
+ active_led {
+ label = "bubba3:blue:active";
+ gpios = <&gpio1 10 GPIO_ACTIVE_HIGH>;
+ };
+ };
+
+ gpio-keys {
+ compatible = "gpio-keys";
+ pinctrl-0 = <&pmx_button_power>;
+ pinctrl-names = "default";
+
+ power-button {
+ /* On the back */
+ label = "Power Button";
+ linux,code = <KEY_POWER>;
+ gpios = <&gpio1 7 GPIO_ACTIVE_LOW>;
+ };
+ };
+
+ beeper: beeper {
+ /* 4KHz Piezoelectric buzzer */
+ compatible = "gpio-beeper";
+ pinctrl-0 = <&pmx_beeper>;
+ pinctrl-names = "default";
+ gpios = <&gpio1 8 GPIO_ACTIVE_HIGH>;
+ };
+};
+
+&mdio {
+ status = "okay";
+
+ ethphy0: ethernet-phy@8 {
+ device_type = "ethernet-phy";
+ reg = <8>;
+ };
+
+ ethphy1: ethernet-phy@24 {
+ device_type = "ethernet-phy";
+ reg = <24>;
+ };
+};
+
+&eth0 {
+ status = "okay";
+ ethernet0-port@0 {
+ phy-handle = <&ethphy0>;
+ };
+};
+
+&eth1 {
+ status = "okay";
+ ethernet1-port@0 {
+ phy-handle = <&ethphy1>;
+ };
+};
+
+/* Wifi model has Atheros chipset on pcie port */
+&pciec {
+ status = "okay";
+};
+
+&pcie0 {
+ status = "okay";
+};