target/linux/ramips/dts/MIR3G.dts

   1 /dts-v1/;
   2
   3 #include "mt7621.dtsi"
   4
   5 #include <dt-bindings/gpio/gpio.h>
   6 #include <dt-bindings/input/input.h>
   7
   8 / {
   9         compatible = "xiaomi,mir3g", "mediatek,mt7621-soc";
  10         model = "Xiaomi Mi Router 3G";
  11
  12         aliases {
  13                 led-boot = &led_status_yellow;
  14                 led-failsafe = &led_status_red;
  15                 led-running = &led_status_blue;
  16                 led-upgrade = &led_status_yellow;
  17         };
  18
  19         memory@0 {
  20                 device_type = "memory";
  21                 reg = <0x0 0x10000000>;
  22         };
  23
  24         chosen {
  25                 bootargs = "console=ttyS0,115200n8";
  26         };
  27
  28         leds {
  29                 compatible = "gpio-leds";
  30
  31                 led_status_red: status_red {
  32                         label = "mir3g:red:status";
  33                         gpios = <&gpio0 6 GPIO_ACTIVE_LOW>;
  34                 };
  35
  36                 led_status_blue: status_blue {
  37                         label = "mir3g:blue:status";
  38                         gpios = <&gpio0 8 GPIO_ACTIVE_LOW>;
  39                 };
  40
  41                 led_status_yellow: status_yellow {
  42                         label = "mir3g:yellow:status";
  43                         gpios = <&gpio0 10 GPIO_ACTIVE_LOW>;
  44                 };
  45
  46                 wan_amber {
  47                         label = "mir3g:amber:wan";
  48                         gpios = <&gpio0 13 GPIO_ACTIVE_LOW>;
  49                 };
  50
  51                 lan1_amber {
  52                         label = "mir3g:amber:lan1";
  53                         gpios = <&gpio0 14 GPIO_ACTIVE_LOW>;
  54                 };
  55
  56                 lan2_amber {
  57                         label = "mir3g:amber:lan2";
  58                         gpios = <&gpio0 16 GPIO_ACTIVE_LOW>;
  59                 };
  60         };
  61
  62         button {
  63                 compatible = "gpio-keys-polled";
  64                 poll-interval = <20>;
  65
  66                 reset {
  67                         label = "reset";
  68                         gpios = <&gpio0 18 GPIO_ACTIVE_LOW>;
  69                         linux,code = <KEY_RESTART>;
  70                 };
  71         };
  72
  73         reg_usb_vbus: regulator {
  74                 compatible = "regulator-fixed";
  75                 regulator-name = "usb_vbus";
  76                 regulator-min-microvolt = <5000000>;
  77                 regulator-max-microvolt = <5000000>;
  78                 gpio = <&gpio0 12 GPIO_ACTIVE_HIGH>;
  79                 enable-active-high;
  80         };
  81 };
  82
  83 &xhci {
  84         vbus-supply = <&reg_usb_vbus>;
  85 };
  86
  87 &nand {
  88         status = "okay";
  89
  90         partitions {
  91                 compatible = "fixed-partitions";
  92                 #address-cells = <1>;
  93                 #size-cells = <1>;
  94
  95                 partition@0 {
  96                         label = "Bootloader";
  97                         reg = <0x0 0x80000>;
  98                         read-only;
  99                 };
 100
 101                 partition@80000 {
 102                         label = "Config";
 103                         reg = <0x80000 0x40000>;
 104                 };
 105
 106                 partition@c0000 {
 107                         label = "Bdata";
 108                         reg = <0xc0000 0x40000>;
 109                         read-only;
 110                 };
 111
 112                 factory: partition@100000 {
 113                         label = "Factory";
 114                         reg = <0x100000 0x40000>;
 115                         read-only;
 116                 };
 117
 118                 partition@140000 {
 119                         label = "crash";
 120                         reg = <0x140000 0x40000>;
 121                 };
 122
 123                 partition@180000 {
 124                         label = "crash_syslog";
 125                         reg = <0x180000 0x40000>;
 126                 };
 127
 128                 partition@1c0000 {
 129                         label = "reserved0";
 130                         reg = <0x1c0000 0x40000>;
 131                         read-only;
 132                 };
 133
 134                 /* uboot expects to find kernels at 0x200000 & 0x600000
 135                  * referred to as system 1 & system 2 respectively.
 136                  * a kernel is considered suitable for handing control over
 137                  * if its linux magic number exists & uImage CRC are correct.
 138                  * If either of those conditions fail, a matching sys'n'_fail flag
 139                  * is set in uboot env & a restart performed in the hope that the
 140                  * alternate kernel is okay.
 141                  * if neither kernel checksums ok and both are marked failed, system 2
 142                  * is booted anyway.
 143                  *
 144                  * Note uboot's tftp flash install writes the transferred
 145                  * image to both kernel partitions.
 146                  */
 147
 148                 partition@200000 {
 149                         label = "kernel_stock";
 150                         reg = <0x200000 0x400000>;
 151                 };
 152
 153                 partition@600000 {
 154                         label = "kernel";
 155                         reg = <0x600000 0x400000>;
 156                 };
 157
 158                 /* ubi partition is the result of squashing
 159                  * next consecutive stock partitions:
 160                  * - rootfs0 (rootfs partition for stock kernel0),
 161                  * - rootfs1 (rootfs partition for stock failsafe kernel1),
 162                  * - overlay (used as ubi overlay in stock fw)
 163                  * resulting 117,5MiB space for packages.
 164                  */
 165
 166                 partition@a00000 {
 167                         label = "ubi";
 168                         reg = <0xa00000 0x7580000>;
 169                 };
 170         };
 171 };
 172
 173 &pcie {
 174         status = "okay";
 175 };
 176
 177 &pcie0 {
 178         wifi@0,0 {
 179                 compatible = "pci14c3,7603";
 180                 reg = <0x0000 0 0 0 0>;
 181                 mediatek,mtd-eeprom = <&factory 0x0000>;
 182                 ieee80211-freq-limit = <2400000 2500000>;
 183         };
 184 };
 185
 186 &pcie1 {
 187         wifi@0,0 {
 188                 compatible = "pci14c3,7662";
 189                 reg = <0x0000 0 0 0 0>;
 190                 mediatek,mtd-eeprom = <&factory 0x8000>;
 191                 ieee80211-freq-limit = <5000000 6000000>;
 192         };
 193 };
 194
 195 &ethernet {
 196         mtd-mac-address = <&factory 0xe000>;
 197         mediatek,portmap = "lwlll";
 198 };
 199
 200 &pinctrl {
 201         state_default: pinctrl0 {
 202                 gpio {
 203                         ralink,group = "jtag", "uart2", "uart3", "wdt";
 204                         ralink,function = "gpio";
 205                 };
 206         };
 207 };