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         };
  34
  35         mbus {
  36                 pcie-controller {
  37                         status = "okay";
  38
  39                         /* Wifi model has Atheros chipset on pcie port */
  40                         pcie@1,0 {
  41                                 status = "okay";
  42                         };
  43                 };
  44         };
  45
  46         ocp@f1000000 {
  47                 pinctrl: pinctrl@10000 {
  48                         pmx_button_power: pmx-button-power {
  49                                 marvell,pins = "mpp39";
  50                                 marvell,function = "gpio";
  51                         };
  52                         pmx_led_green: pmx-led-green {
  53                                 marvell,pins = "mpp38";
  54                                 marvell,function = "gpio";
  55                         };
  56                         pmx_led_red: pmx-led-red {
  57                                 marvell,pins = "mpp41";
  58                                 marvell,function = "gpio";
  59                         };
  60                         pmx_led_blue: pmx-led-blue {
  61                                 marvell,pins = "mpp42";
  62                                 marvell,function = "gpio";
  63                         };
  64                         pmx_beeper: pmx-beeper {
  65                                 marvell,pins = "mpp40";
  66                                 marvell,function = "gpio";
  67                         };
  68                 };
  69
  70                 spi@10600 {
  71                         status = "okay";
  72                         pinctrl-0 = <&pmx_spi>;
  73                         pinctrl-names = "default";
  74
  75                         m25p16@0 {
  76                                 #address-cells = <1>;
  77                                 #size-cells = <1>;
  78                                 compatible = "m25p16";
  79                                 reg = <0>;
  80                                 spi-max-frequency = <40000000>;
  81                                 mode = <0>;
  82
  83                                 partition@0 {
  84                                         reg = <0x0 0xc0000>;
  85                                         label = "u-boot";
  86                                 };
  87
  88                                 partition@c0000 {
  89                                         reg = <0xc0000 0x20000>;
  90                                         label = "u-boot env";
  91                                 };
  92
  93                                 partition@e0000 {
  94                                         reg = <0xe0000 0x120000>;
  95                                         label = "data";
  96                                 };
  97                         };
  98                 };
  99
 100                 i2c@11000 {
 101                         status = "okay";
 102                         /*
 103                          * There is something on the bus at address 0x64.
 104                          * Not yet identified what it is, maybe the eeprom
 105                          * for the Atheros WiFi chip?
 106                          */
 107                 };
 108
 109
 110                 serial@12000 {
 111                         /* Internal on test pins, 3.3v TTL
 112                          * UART0_RX = Testpoint 65
 113                          * UART0_TX = Testpoint 66
 114                          * See the Excito Wiki for more details.
 115                          */
 116                         pinctrl-0 = <&pmx_uart0>;
 117                         pinctrl-names = "default";
 118                         status = "okay";
 119                 };
 120
 121                 sata@80000 {
 122                         /* One internal, the second as eSATA */
 123                         status = "okay";
 124                         nr-ports = <2>;
 125                 };
 126         };
 127
 128         gpio-leds {
 129                 /*
 130                  * There is one LED "port" on the front and the colours
 131                  * mix together giving some interesting combinations.
 132                  */
 133                 compatible = "gpio-leds";
 134                 pinctrl-0 = < &pmx_led_green &pmx_led_red
 135                               &pmx_led_blue >;
 136                 pinctrl-names = "default";
 137
 138                 programming_led {
 139                         label = "bubba3:green:programming";
 140                         gpios = <&gpio1 6 GPIO_ACTIVE_HIGH>;
 141                         default-state = "off";
 142                 };
 143
 144                 error_led {
 145                         label = "bubba3:red:error";
 146                         gpios = <&gpio1 9 GPIO_ACTIVE_HIGH>;
 147                 };
 148
 149                 active_led {
 150                         label = "bubba3:blue:active";
 151                         gpios = <&gpio1 10 GPIO_ACTIVE_HIGH>;
 152                 };
 153         };
 154
 155         gpio-keys {
 156                 compatible = "gpio-keys";
 157                 pinctrl-0 = <&pmx_button_power>;
 158                 pinctrl-names = "default";
 159
 160                 power-button {
 161                         /* On the back */
 162                         label = "Power Button";
 163                         linux,code = <KEY_POWER>;
 164                         gpios = <&gpio1 7 GPIO_ACTIVE_LOW>;
 165                 };
 166         };
 167
 168         beeper: beeper {
 169                 /* 4KHz Piezoelectric buzzer */
 170                 compatible = "gpio-beeper";
 171                 pinctrl-0 = <&pmx_beeper>;
 172                 pinctrl-names = "default";
 173                 gpios = <&gpio1 8 GPIO_ACTIVE_HIGH>;
 174         };
 175 };
 176
 177 &mdio {
 178         status = "okay";
 179
 180         ethphy0: ethernet-phy@8 {
 181                 device_type = "ethernet-phy";
 182                 reg = <8>;
 183         };
 184
 185         ethphy1: ethernet-phy@24 {
 186                 device_type = "ethernet-phy";
 187                 reg = <24>;
 188         };
 189 };
 190
 191 &eth0 {
 192         status = "okay";
 193         ethernet0-port@0 {
 194                 phy-handle = <&ethphy0>;
 195         };
 196 };
 197
 198 &eth1 {
 199         status = "okay";
 200         ethernet1-port@0 {
 201                 phy-handle = <&ethphy1>;
 202         };
 203 };
 204