arch/arm/boot/dts/bcm2835-rpi-zero-w.dts

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (C) 2017 Stefan Wahren <stefan.wahren@i2se.com>
   4  */
   5
   6 /dts-v1/;
   7 #include "bcm2835.dtsi"
   8 #include "bcm2835-rpi.dtsi"
   9 #include "bcm283x-rpi-usb-otg.dtsi"
  10 #include "bcm283x-rpi-wifi-bt.dtsi"
  11
  12 / {
  13         compatible = "raspberrypi,model-zero-w", "brcm,bcm2835";
  14         model = "Raspberry Pi Zero W";
  15
  16         memory@0 {
  17                 device_type = "memory";
  18                 reg = <0 0x20000000>;
  19         };
  20
  21         chosen {
  22                 /* 8250 auxiliary UART instead of pl011 */
  23                 stdout-path = "serial1:115200n8";
  24         };
  25
  26         leds {
  27                 led-act {
  28                         gpios = <&gpio 47 GPIO_ACTIVE_LOW>;
  29                 };
  30         };
  31 };
  32
  33 &bt {
  34         shutdown-gpios = <&gpio 45 GPIO_ACTIVE_HIGH>;
  35 };
  36
  37 &gpio {
  38         /*
  39          * This is based on the official GPU firmware DT blob.
  40          *
  41          * Legend:
  42          * "FOO" = GPIO line named "FOO" on the schematic
  43          * "FOO_N" = GPIO line named "FOO" on schematic, active low
  44          */
  45         gpio-line-names = "ID_SDA",
  46                           "ID_SCL",
  47                           "SDA1",
  48                           "SCL1",
  49                           "GPIO_GCLK",
  50                           "GPIO5",
  51                           "GPIO6",
  52                           "SPI_CE1_N",
  53                           "SPI_CE0_N",
  54                           "SPI_MISO",
  55                           "SPI_MOSI",
  56                           "SPI_SCLK",
  57                           "GPIO12",
  58                           "GPIO13",
  59                           /* Serial port */
  60                           "TXD0",
  61                           "RXD0",
  62                           "GPIO16",
  63                           "GPIO17",
  64                           "GPIO18",
  65                           "GPIO19",
  66                           "GPIO20",
  67                           "GPIO21",
  68                           "GPIO22",
  69                           "GPIO23",
  70                           "GPIO24",
  71                           "GPIO25",
  72                           "GPIO26",
  73                           "GPIO27",
  74                           "SDA0",
  75                           "SCL0",
  76                           /* Used by BT module */
  77                           "CTS0",
  78                           "RTS0",
  79                           "TXD0",
  80                           "RXD0",
  81                           /* Used by Wifi */
  82                           "SD1_CLK",
  83                           "SD1_CMD",
  84                           "SD1_DATA0",
  85                           "SD1_DATA1",
  86                           "SD1_DATA2",
  87                           "SD1_DATA3",
  88                           "CAM_GPIO1", /* GPIO40 */
  89                           "WL_ON", /* GPIO41 */
  90                           "", /* GPIO42 */
  91                           "WIFI_CLK", /* GPIO43 */
  92                           "CAM_GPIO0", /* GPIO44 */
  93                           "BT_ON", /* GPIO45 */
  94                           "HDMI_HPD_N",
  95                           "STATUS_LED_N",
  96                           /* Used by SD Card */
  97                           "SD_CLK_R",
  98                           "SD_CMD_R",
  99                           "SD_DATA0_R",
 100                           "SD_DATA1_R",
 101                           "SD_DATA2_R",
 102                           "SD_DATA3_R";
 103
 104         pinctrl-0 = <&gpioout &alt0>;
 105 };
 106
 107 &hdmi {
 108         hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
 109         power-domains = <&power RPI_POWER_DOMAIN_HDMI>;
 110         status = "okay";
 111 };
 112
 113 &sdhci {
 114         pinctrl-0 = <&emmc_gpio34 &gpclk2_gpio43>;
 115 };
 116
 117 &sdhost {
 118         pinctrl-names = "default";
 119         pinctrl-0 = <&sdhost_gpio48>;
 120         bus-width = <4>;
 121         status = "okay";
 122 };
 123
 124 &uart0 {
 125         pinctrl-names = "default";
 126         pinctrl-0 = <&uart0_gpio32 &uart0_ctsrts_gpio30>;
 127 };
 128
 129 &uart1 {
 130         pinctrl-names = "default";
 131         pinctrl-0 = <&uart1_gpio14>;
 132         status = "okay";
 133 };
 134
 135 &wifi_pwrseq {
 136         reset-gpios = <&gpio 41 GPIO_ACTIVE_LOW>;
 137 };