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

   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  * http://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 };