kirkwood-b3.dts

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    1 // SPDX-License-Identifier: GPL-2.0+
    2 /*
    3  * Device Tree file for Excito Bubba B3
    4  *
    5  * Copyright (C) 2013, Andrew Lunn <andrew@lunn.ch>
    6  *
    7  *
    8  * Note: This requires a new'ish version of u-boot, which disables the
    9  * L2 cache. If your B3 silently fails to boot, u-boot is probably too
   10  * old. Either upgrade, or consider the following email:
   11  *
   12  * https://lists.debian.org/debian-arm/2012/08/msg00128.html
   13  */
   14 
   15 /dts-v1/;
   16 
   17 #include "kirkwood.dtsi"
   18 #include "kirkwood-6281.dtsi"
   19 
   20 / {
   21         model = "Excito B3";
   22         compatible = "excito,b3", "marvell,kirkwood-88f6281", "marvell,kirkwood";
   23         memory { /* 512 MB */
   24                 device_type = "memory";
   25                 reg = <0x00000000 0x20000000>;
   26         };
   27 
   28         chosen {
   29                 bootargs = "console=ttyS0,115200n8 earlyprintk";
   30                 stdout-path = &uart0;
   31         };
   32 
   33         ocp@f1000000 {
   34                 pinctrl: pin-controller@10000 {
   35                         pmx_button_power: pmx-button-power {
   36                                 marvell,pins = "mpp39";
   37                                 marvell,function = "gpio";
   38                         };
   39                         pmx_led_green: pmx-led-green {
   40                                 marvell,pins = "mpp38";
   41                                 marvell,function = "gpio";
   42                         };
   43                         pmx_led_red: pmx-led-red {
   44                                 marvell,pins = "mpp41";
   45                                 marvell,function = "gpio";
   46                         };
   47                         pmx_led_blue: pmx-led-blue {
   48                                 marvell,pins = "mpp42";
   49                                 marvell,function = "gpio";
   50                         };
   51                         pmx_beeper: pmx-beeper {
   52                                 marvell,pins = "mpp40";
   53                                 marvell,function = "gpio";
   54                         };
   55                 };
   56 
   57                 spi@10600 {
   58                         status = "okay";
   59 
   60                         m25p16@0 {
   61                                 #address-cells = <1>;
   62                                 #size-cells = <1>;
   63                                 compatible = "st,m25p16", "jedec,spi-nor";
   64                                 reg = <0>;
   65                                 spi-max-frequency = <40000000>;
   66                                 mode = <0>;
   67 
   68                                 partition@0 {
   69                                         reg = <0x0 0xc0000>;
   70                                         label = "u-boot";
   71                                 };
   72 
   73                                 partition@c0000 {
   74                                         reg = <0xc0000 0x20000>;
   75                                         label = "u-boot env";
   76                                 };
   77 
   78                                 partition@e0000 {
   79                                         reg = <0xe0000 0x120000>;
   80                                         label = "data";
   81                                 };
   82                         };
   83                 };
   84 
   85                 i2c@11000 {
   86                         status = "okay";
   87                         /*
   88                          * There is something on the bus at address 0x64.
   89                          * Not yet identified what it is, maybe the eeprom
   90                          * for the Atheros WiFi chip?
   91                          */
   92                 };
   93 
   94 
   95                 serial@12000 {
   96                         /* Internal on test pins, 3.3v TTL
   97                          * UART0_RX = Testpoint 65
   98                          * UART0_TX = Testpoint 66
   99                          * See the Excito Wiki for more details.
  100                          */
  101                         status = "okay";
  102                 };
  103 
  104                 sata@80000 {
  105                         /* One internal, the second as eSATA */
  106                         status = "okay";
  107                         nr-ports = <2>;
  108                 };
  109         };
  110 
  111         gpio-leds {
  112                 /*
  113                  * There is one LED "port" on the front and the colours
  114                  * mix together giving some interesting combinations.
  115                  */
  116                 compatible = "gpio-leds";
  117                 pinctrl-0 = < &pmx_led_green &pmx_led_red
  118                               &pmx_led_blue >;
  119                 pinctrl-names = "default";
  120 
  121                 programming_led {
  122                         label = "bubba3:green:programming";
  123                         gpios = <&gpio1 6 GPIO_ACTIVE_HIGH>;
  124                         default-state = "off";
  125                 };
  126 
  127                 error_led {
  128                         label = "bubba3:red:error";
  129                         gpios = <&gpio1 9 GPIO_ACTIVE_HIGH>;
  130                 };
  131 
  132                 active_led {
  133                         label = "bubba3:blue:active";
  134                         gpios = <&gpio1 10 GPIO_ACTIVE_HIGH>;
  135                 };
  136         };
  137 
  138         gpio-keys {
  139                 compatible = "gpio-keys";
  140                 pinctrl-0 = <&pmx_button_power>;
  141                 pinctrl-names = "default";
  142 
  143                 power-button {
  144                         /* On the back */
  145                         label = "Power Button";
  146                         linux,code = <KEY_POWER>;
  147                         gpios = <&gpio1 7 GPIO_ACTIVE_LOW>;
  148                 };
  149         };
  150 
  151         beeper: beeper {
  152                 /* 4KHz Piezoelectric buzzer */
  153                 compatible = "gpio-beeper";
  154                 pinctrl-0 = <&pmx_beeper>;
  155                 pinctrl-names = "default";
  156                 gpios = <&gpio1 8 GPIO_ACTIVE_HIGH>;
  157         };
  158 };
  159 
  160 &mdio {
  161         status = "okay";
  162 
  163         ethphy0: ethernet-phy@8 {
  164                 device_type = "ethernet-phy";
  165                 reg = <8>;
  166         };
  167 
  168         ethphy1: ethernet-phy@24 {
  169                 device_type = "ethernet-phy";
  170                 reg = <24>;
  171         };
  172 };
  173 
  174 &eth0 {
  175         status = "okay";
  176         ethernet0-port@0 {
  177                 phy-handle = <&ethphy0>;
  178         };
  179 };
  180 
  181 &eth1 {
  182         status = "okay";
  183         ethernet1-port@0 {
  184                 phy-handle = <&ethphy1>;
  185         };
  186 };
  187 
  188 /* Wifi model has Atheros chipset on pcie port */
  189 &pciec {
  190         status = "okay";
  191 };
  192 
  193 &pcie0 {
  194         status = "okay";
  195 };

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