boot/dts/kirkwood-b3.dts

0001 // SPDX-License-Identifier: GPL-2.0+
0002 /*
0003  * Device Tree file for Excito Bubba B3
0004  *
0005  * Copyright (C) 2013, Andrew Lunn <andrew@lunn.ch>
0006  *
0007  *
0008  * Note: This requires a new'ish version of u-boot, which disables the
0009  * L2 cache. If your B3 silently fails to boot, u-boot is probably too
0010  * old. Either upgrade, or consider the following email:
0011  *
0012  * https://lists.debian.org/debian-arm/2012/08/msg00128.html
0013  */
0014
0015 /dts-v1/;
0016
0017 #include "kirkwood.dtsi"
0018 #include "kirkwood-6281.dtsi"
0019
0020 / {
0021         model = "Excito B3";
0022         compatible = "excito,b3", "marvell,kirkwood-88f6281", "marvell,kirkwood";
0023         memory { /* 512 MB */
0024                 device_type = "memory";
0025                 reg = <0x00000000 0x20000000>;
0026         };
0027
0028         chosen {
0029                 bootargs = "console=ttyS0,115200n8 earlyprintk";
0030                 stdout-path = &uart0;
0031         };
0032
0033         ocp@f1000000 {
0034                 pinctrl: pin-controller@10000 {
0035                         pmx_button_power: pmx-button-power {
0036                                 marvell,pins = "mpp39";
0037                                 marvell,function = "gpio";
0038                         };
0039                         pmx_led_green: pmx-led-green {
0040                                 marvell,pins = "mpp38";
0041                                 marvell,function = "gpio";
0042                         };
0043                         pmx_led_red: pmx-led-red {
0044                                 marvell,pins = "mpp41";
0045                                 marvell,function = "gpio";
0046                         };
0047                         pmx_led_blue: pmx-led-blue {
0048                                 marvell,pins = "mpp42";
0049                                 marvell,function = "gpio";
0050                         };
0051                         pmx_beeper: pmx-beeper {
0052                                 marvell,pins = "mpp40";
0053                                 marvell,function = "gpio";
0054                         };
0055                 };
0056
0057                 spi@10600 {
0058                         status = "okay";
0059
0060                         m25p16@0 {
0061                                 #address-cells = <1>;
0062                                 #size-cells = <1>;
0063                                 compatible = "st,m25p16", "jedec,spi-nor";
0064                                 reg = <0>;
0065                                 spi-max-frequency = <40000000>;
0066                                 mode = <0>;
0067
0068                                 partition@0 {
0069                                         reg = <0x0 0xc0000>;
0070                                         label = "u-boot";
0071                                 };
0072
0073                                 partition@c0000 {
0074                                         reg = <0xc0000 0x20000>;
0075                                         label = "u-boot env";
0076                                 };
0077
0078                                 partition@e0000 {
0079                                         reg = <0xe0000 0x120000>;
0080                                         label = "data";
0081                                 };
0082                         };
0083                 };
0084
0085                 i2c@11000 {
0086                         status = "okay";
0087                         /*
0088                          * There is something on the bus at address 0x64.
0089                          * Not yet identified what it is, maybe the eeprom
0090                          * for the Atheros WiFi chip?
0091                          */
0092                 };
0093
0094
0095                 serial@12000 {
0096                         /* Internal on test pins, 3.3v TTL
0097                          * UART0_RX = Testpoint 65
0098                          * UART0_TX = Testpoint 66
0099                          * See the Excito Wiki for more details.
0100                          */
0101                         status = "okay";
0102                 };
0103
0104                 sata@80000 {
0105                         /* One internal, the second as eSATA */
0106                         status = "okay";
0107                         nr-ports = <2>;
0108                 };
0109         };
0110
0111         gpio-leds {
0112                 /*
0113                  * There is one LED "port" on the front and the colours
0114                  * mix together giving some interesting combinations.
0115                  */
0116                 compatible = "gpio-leds";
0117                 pinctrl-0 = < &pmx_led_green &pmx_led_red
0118                               &pmx_led_blue >;
0119                 pinctrl-names = "default";
0120
0121                 programming_led {
0122                         label = "bubba3:green:programming";
0123                         gpios = <&gpio1 6 GPIO_ACTIVE_HIGH>;
0124                         default-state = "off";
0125                 };
0126
0127                 error_led {
0128                         label = "bubba3:red:error";
0129                         gpios = <&gpio1 9 GPIO_ACTIVE_HIGH>;
0130                 };
0131
0132                 active_led {
0133                         label = "bubba3:blue:active";
0134                         gpios = <&gpio1 10 GPIO_ACTIVE_HIGH>;
0135                 };
0136         };
0137
0138         gpio-keys {
0139                 compatible = "gpio-keys";
0140                 pinctrl-0 = <&pmx_button_power>;
0141                 pinctrl-names = "default";
0142
0143                 power-button {
0144                         /* On the back */
0145                         label = "Power Button";
0146                         linux,code = <KEY_POWER>;
0147                         gpios = <&gpio1 7 GPIO_ACTIVE_LOW>;
0148                 };
0149         };
0150
0151         beeper: beeper {
0152                 /* 4KHz Piezoelectric buzzer */
0153                 compatible = "gpio-beeper";
0154                 pinctrl-0 = <&pmx_beeper>;
0155                 pinctrl-names = "default";
0156                 gpios = <&gpio1 8 GPIO_ACTIVE_HIGH>;
0157         };
0158 };
0159
0160 &mdio {
0161         status = "okay";
0162
0163         ethphy0: ethernet-phy@8 {
0164                 device_type = "ethernet-phy";
0165                 reg = <8>;
0166         };
0167
0168         ethphy1: ethernet-phy@24 {
0169                 device_type = "ethernet-phy";
0170                 reg = <24>;
0171         };
0172 };
0173
0174 &eth0 {
0175         status = "okay";
0176         ethernet0-port@0 {
0177                 phy-handle = <&ethphy0>;
0178         };
0179 };
0180
0181 &eth1 {
0182         status = "okay";
0183         ethernet1-port@0 {
0184                 phy-handle = <&ethphy1>;
0185         };
0186 };
0187
0188 /* Wifi model has Atheros chipset on pcie port */
0189 &pciec {
0190         status = "okay";
0191 };
0192
0193 &pcie0 {
0194         status = "okay";
0195 };