arch/arm/boot/dts/kirkwood-b3.dts

   1 /*
   2  * Device Tree file for Excito Bubba B3
   3  *
   4  * Copyright (C) 2013, Andrew Lunn <andrew@lunn.ch>
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License
   8  * as published by the Free Software Foundation; either version
   9  * 2 of the License, or (at your option) any later version.
  10  *
  11  * Note: This requires a new'ish version of u-boot, which disables the
  12  * L2 cache. If your B3 silently fails to boot, u-boot is probably too
  13  * old. Either upgrade, or consider the following email:
  14  *
  15  * http://lists.debian.org/debian-arm/2012/08/msg00128.html
  16  */
  17
  18 /dts-v1/;
  19
  20 #include "kirkwood.dtsi"
  21 #include "kirkwood-6281.dtsi"
  22
  23 / {
  24         model = "Excito B3";
  25         compatible = "excito,b3", "marvell,kirkwood-88f6281", "marvell,kirkwood";
  26         memory { /* 512 MB */
  27                 device_type = "memory";
  28                 reg = <0x00000000 0x20000000>;
  29         };
  30
  31         chosen {
  32                 bootargs = "console=ttyS0,115200n8 earlyprintk";
  33                 stdout-path = &uart0;
  34         };
  35
  36         ocp@f1000000 {
  37                 pinctrl: pin-controller@10000 {
  38                         pmx_button_power: pmx-button-power {
  39                                 marvell,pins = "mpp39";
  40                                 marvell,function = "gpio";
  41                         };
  42                         pmx_led_green: pmx-led-green {
  43                                 marvell,pins = "mpp38";
  44                                 marvell,function = "gpio";
  45                         };
  46                         pmx_led_red: pmx-led-red {
  47                                 marvell,pins = "mpp41";
  48                                 marvell,function = "gpio";
  49                         };
  50                         pmx_led_blue: pmx-led-blue {
  51                                 marvell,pins = "mpp42";
  52                                 marvell,function = "gpio";
  53                         };
  54                         pmx_beeper: pmx-beeper {
  55                                 marvell,pins = "mpp40";
  56                                 marvell,function = "gpio";
  57                         };
  58                 };
  59
  60                 spi@10600 {
  61                         status = "okay";
  62
  63                         m25p16@0 {
  64                                 #address-cells = <1>;
  65                                 #size-cells = <1>;
  66                                 compatible = "st,m25p16", "jedec,spi-nor";
  67                                 reg = <0>;
  68                                 spi-max-frequency = <40000000>;
  69                                 mode = <0>;
  70
  71                                 partition@0 {
  72                                         reg = <0x0 0xc0000>;
  73                                         label = "u-boot";
  74                                 };
  75
  76                                 partition@c0000 {
  77                                         reg = <0xc0000 0x20000>;
  78                                         label = "u-boot env";
  79                                 };
  80
  81                                 partition@e0000 {
  82                                         reg = <0xe0000 0x120000>;
  83                                         label = "data";
  84                                 };
  85                         };
  86                 };
  87
  88                 i2c@11000 {
  89                         status = "okay";
  90                         /*
  91                          * There is something on the bus at address 0x64.
  92                          * Not yet identified what it is, maybe the eeprom
  93                          * for the Atheros WiFi chip?
  94                          */
  95                 };
  96
  97
  98                 serial@12000 {
  99                         /* Internal on test pins, 3.3v TTL
 100                          * UART0_RX = Testpoint 65
 101                          * UART0_TX = Testpoint 66
 102                          * See the Excito Wiki for more details.
 103                          */
 104                         status = "okay";
 105                 };
 106
 107                 sata@80000 {
 108                         /* One internal, the second as eSATA */
 109                         status = "okay";
 110                         nr-ports = <2>;
 111                 };
 112         };
 113
 114         gpio-leds {
 115                 /*
 116                  * There is one LED "port" on the front and the colours
 117                  * mix together giving some interesting combinations.
 118                  */
 119                 compatible = "gpio-leds";
 120                 pinctrl-0 = < &pmx_led_green &pmx_led_red
 121                               &pmx_led_blue >;
 122                 pinctrl-names = "default";
 123
 124                 programming_led {
 125                         label = "bubba3:green:programming";
 126                         gpios = <&gpio1 6 GPIO_ACTIVE_HIGH>;
 127                         default-state = "off";
 128                 };
 129
 130                 error_led {
 131                         label = "bubba3:red:error";
 132                         gpios = <&gpio1 9 GPIO_ACTIVE_HIGH>;
 133                 };
 134
 135                 active_led {
 136                         label = "bubba3:blue:active";
 137                         gpios = <&gpio1 10 GPIO_ACTIVE_HIGH>;
 138                 };
 139         };
 140
 141         gpio-keys {
 142                 compatible = "gpio-keys";
 143                 pinctrl-0 = <&pmx_button_power>;
 144                 pinctrl-names = "default";
 145
 146                 power-button {
 147                         /* On the back */
 148                         label = "Power Button";
 149                         linux,code = <KEY_POWER>;
 150                         gpios = <&gpio1 7 GPIO_ACTIVE_LOW>;
 151                 };
 152         };
 153
 154         beeper: beeper {
 155                 /* 4KHz Piezoelectric buzzer */
 156                 compatible = "gpio-beeper";
 157                 pinctrl-0 = <&pmx_beeper>;
 158                 pinctrl-names = "default";
 159                 gpios = <&gpio1 8 GPIO_ACTIVE_HIGH>;
 160         };
 161 };
 162
 163 &mdio {
 164         status = "okay";
 165
 166         ethphy0: ethernet-phy@8 {
 167                 device_type = "ethernet-phy";
 168                 reg = <8>;
 169         };
 170
 171         ethphy1: ethernet-phy@24 {
 172                 device_type = "ethernet-phy";
 173                 reg = <24>;
 174         };
 175 };
 176
 177 &eth0 {
 178         status = "okay";
 179         ethernet0-port@0 {
 180                 phy-handle = <&ethphy0>;
 181         };
 182 };
 183
 184 &eth1 {
 185         status = "okay";
 186         ethernet1-port@0 {
 187                 phy-handle = <&ethphy1>;
 188         };
 189 };
 190
 191 /* Wifi model has Atheros chipset on pcie port */
 192 &pciec {
 193         status = "okay";
 194 };
 195
 196 &pcie0 {
 197         status = "okay";
 198 };