ARM: Kirkwood: Add support for Excito Bubba B3

The Excito Bubba B3 is a home server, single drive NAS box, Wifi
access point, etc.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

2 files changed, 206 insertions, 1 deletions

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index b9d6a8b485e0..8535c13a473c 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -82,7 +82,8 @@ dtb-$(CONFIG_ARCH_HIGHBANK) += highbank.dtb \
 dtb-$(CONFIG_ARCH_INTEGRATOR) += integratorap.dtb \
         integratorcp.dtb
 dtb-$(CONFIG_ARCH_LPC32XX) += ea3250.dtb phy3250.dtb
-dtb-$(CONFIG_ARCH_KIRKWOOD) += kirkwood-cloudbox.dtb \
+dtb-$(CONFIG_ARCH_KIRKWOOD) += kirkwood-b3.dtb \
+        kirkwood-cloudbox.dtb \
         kirkwood-db-88f6281.dtb \
         kirkwood-db-88f6282.dtb \
         kirkwood-dns320.dtb \
diff --git a/arch/arm/boot/dts/kirkwood-b3.dts b/arch/arm/boot/dts/kirkwood-b3.dts
new file mode 100644
index 000000000000..40791053106b
--- /dev/null
+++ b/arch/arm/boot/dts/kirkwood-b3.dts
@@ -0,0 +1,204 @@
+/*
+ * Device Tree file for Excito Bubba B3
+ *
+ * Copyright (C) 2013, Andrew Lunn <andrew@lunn.ch>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ *
+ * 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:
+ *
+ * http://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";
+        };
+
+        mbus {
+                pcie-controller {
+                        status = "okay";
+
+                        /* Wifi model has Atheros chipset on pcie port */
+                        pcie@1,0 {
+                                status = "okay";
+                        };
+                };
+        };
+
+        ocp@f1000000 {
+                pinctrl: pinctrl@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";
+                        pinctrl-0 = <&pmx_spi>;
+                        pinctrl-names = "default";
+
+                        m25p16@0 {
+                                #address-cells = <1>;
+                                #size-cells = <1>;
+                                compatible = "m25p16";
+                                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.
+                         */
+                        pinctrl-0 = <&pmx_uart0>;
+                        pinctrl-names = "default";
+                        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>;
+        };
+};
+