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         mbus {
  37                 pcie-controller {
  38                         status = "okay";
  39
  40                         /* Wifi model has Atheros chipset on pcie port */
  41                         pcie@1,0 {
  42                                 status = "okay";
  43                         };
  44                 };
  45         };
  46
  47         ocp@f1000000 {
  48                 pinctrl: pin-controller@10000 {
  49                         pmx_button_power: pmx-button-power {
  50                                 marvell,pins = "mpp39";
  51                                 marvell,function = "gpio";
  52                         };
  53                         pmx_led_green: pmx-led-green {
  54                                 marvell,pins = "mpp38";
  55                                 marvell,function = "gpio";
  56                         };
  57                         pmx_led_red: pmx-led-red {
  58                                 marvell,pins = "mpp41";
  59                                 marvell,function = "gpio";
  60                         };
  61                         pmx_led_blue: pmx-led-blue {
  62                                 marvell,pins = "mpp42";
  63                                 marvell,function = "gpio";
  64                         };
  65                         pmx_beeper: pmx-beeper {
  66                                 marvell,pins = "mpp40";
  67                                 marvell,function = "gpio";
  68                         };
  69                 };
  70
  71                 spi@10600 {
  72                         status = "okay";
  73
  74                         m25p16@0 {
  75                                 #address-cells = <1>;
  76                                 #size-cells = <1>;
  77                                 compatible = "st,m25p16";
  78                                 reg = <0>;
  79                                 spi-max-frequency = <40000000>;
  80                                 mode = <0>;
  81
  82                                 partition@0 {
  83                                         reg = <0x0 0xc0000>;
  84                                         label = "u-boot";
  85                                 };
  86
  87                                 partition@c0000 {
  88                                         reg = <0xc0000 0x20000>;
  89                                         label = "u-boot env";
  90                                 };
  91
  92                                 partition@e0000 {
  93                                         reg = <0xe0000 0x120000>;
  94                                         label = "data";
  95                                 };
  96                         };
  97                 };
  98
  99                 i2c@11000 {
 100                         status = "okay";
 101                         /*
 102                          * There is something on the bus at address 0x64.
 103                          * Not yet identified what it is, maybe the eeprom
 104                          * for the Atheros WiFi chip?
 105                          */
 106                 };
 107
 108
 109                 serial@12000 {
 110                         /* Internal on test pins, 3.3v TTL
 111                          * UART0_RX = Testpoint 65
 112                          * UART0_TX = Testpoint 66
 113                          * See the Excito Wiki for more details.
 114                          */
 115                         status = "okay";
 116                 };
 117
 118                 sata@80000 {
 119                         /* One internal, the second as eSATA */
 120                         status = "okay";
 121                         nr-ports = <2>;
 122                 };
 123         };
 124
 125         gpio-leds {
 126                 /*
 127                  * There is one LED "port" on the front and the colours
 128                  * mix together giving some interesting combinations.
 129                  */
 130                 compatible = "gpio-leds";
 131                 pinctrl-0 = < &pmx_led_green &pmx_led_red
 132                               &pmx_led_blue >;
 133                 pinctrl-names = "default";
 134
 135                 programming_led {
 136                         label = "bubba3:green:programming";
 137                         gpios = <&gpio1 6 GPIO_ACTIVE_HIGH>;
 138                         default-state = "off";
 139                 };
 140
 141                 error_led {
 142                         label = "bubba3:red:error";
 143                         gpios = <&gpio1 9 GPIO_ACTIVE_HIGH>;
 144                 };
 145
 146                 active_led {
 147                         label = "bubba3:blue:active";
 148                         gpios = <&gpio1 10 GPIO_ACTIVE_HIGH>;
 149                 };
 150         };
 151
 152         gpio-keys {
 153                 compatible = "gpio-keys";
 154                 pinctrl-0 = <&pmx_button_power>;
 155                 pinctrl-names = "default";
 156
 157                 power-button {
 158                         /* On the back */
 159                         label = "Power Button";
 160                         linux,code = <KEY_POWER>;
 161                         gpios = <&gpio1 7 GPIO_ACTIVE_LOW>;
 162                 };
 163         };
 164
 165         beeper: beeper {
 166                 /* 4KHz Piezoelectric buzzer */
 167                 compatible = "gpio-beeper";
 168                 pinctrl-0 = <&pmx_beeper>;
 169                 pinctrl-names = "default";
 170                 gpios = <&gpio1 8 GPIO_ACTIVE_HIGH>;
 171         };
 172 };
 173
 174 &mdio {
 175         status = "okay";
 176
 177         ethphy0: ethernet-phy@8 {
 178                 device_type = "ethernet-phy";
 179                 reg = <8>;
 180         };
 181
 182         ethphy1: ethernet-phy@24 {
 183                 device_type = "ethernet-phy";
 184                 reg = <24>;
 185         };
 186 };
 187
 188 &eth0 {
 189         status = "okay";
 190         ethernet0-port@0 {
 191                 phy-handle = <&ethphy0>;
 192         };
 193 };
 194
 195 &eth1 {
 196         status = "okay";
 197         ethernet1-port@0 {
 198                 phy-handle = <&ethphy1>;
 199         };
 200 };
 201