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