// SPDX-License-Identifier: GPL-2.0+ /* * Device Tree file for Excito Bubba B3 * * Copyright (C) 2013, Andrew Lunn * * * 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"; 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 = ; 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>; }; }; ð0 { status = "okay"; ethernet0-port@0 { phy-handle = <ðphy0>; }; }; ð1 { status = "okay"; ethernet1-port@0 { phy-handle = <ðphy1>; }; }; /* Wifi model has Atheros chipset on pcie port */ &pciec { status = "okay"; }; &pcie0 { status = "okay"; };