arch/arm/boot/dts/bcm2837-rpi-zero-2-w.dts

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (C) 2022 Stefan Wahren <stefan.wahren@i2se.com>
   4  */
   5
   6 /dts-v1/;
   7 #include "bcm2837.dtsi"
   8 #include "bcm2836-rpi.dtsi"
   9 #include "bcm283x-rpi-usb-otg.dtsi"
  10 #include "bcm283x-rpi-wifi-bt.dtsi"
  11
  12 / {
  13         compatible = "raspberrypi,model-zero-2-w", "brcm,bcm2837";
  14         model = "Raspberry Pi Zero 2 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 29 GPIO_ACTIVE_LOW>;
  29                 };
  30         };
  31 };
  32
  33 &bt {
  34         shutdown-gpios = <&gpio 42 GPIO_ACTIVE_HIGH>;
  35 };
  36
  37 &gpio {
  38         /*
  39          * This is based on the official GPU firmware DT blob.
  40          *
  41          * Legend:
  42          * "NC" = not connected (no rail from the SoC)
  43          * "FOO" = GPIO line named "FOO" on the schematic
  44          * "FOO_N" = GPIO line named "FOO" on schematic, active low
  45          */
  46         gpio-line-names = "ID_SDA",
  47                           "ID_SCL",
  48                           "SDA1",
  49                           "SCL1",
  50                           "GPIO_GCLK",
  51                           "GPIO5",
  52                           "GPIO6",
  53                           "SPI_CE1_N",
  54                           "SPI_CE0_N",
  55                           "SPI_MISO",
  56                           "SPI_MOSI",
  57                           "SPI_SCLK",
  58                           "GPIO12",
  59                           "GPIO13",
  60                           /* Serial port */
  61                           "TXD0",
  62                           "RXD0",
  63                           "GPIO16",
  64                           "GPIO17",
  65                           "GPIO18",
  66                           "GPIO19",
  67                           "GPIO20",
  68                           "GPIO21",
  69                           "GPIO22",
  70                           "GPIO23",
  71                           "GPIO24",
  72                           "GPIO25",
  73                           "GPIO26",
  74                           "GPIO27",
  75                           "HDMI_HPD_N",
  76                           "STATUS_LED_N",
  77                           "NC", /* GPIO30 */
  78                           "NC", /* GPIO31 */
  79                           "NC", /* GPIO32 */
  80                           "NC", /* GPIO33 */
  81                           "NC", /* GPIO34 */
  82                           "NC", /* GPIO35 */
  83                           "NC", /* GPIO36 */
  84                           "NC", /* GPIO37 */
  85                           "NC", /* GPIO38 */
  86                           "NC", /* GPIO39 */
  87                           "CAM_GPIO0", /* GPIO40 */
  88                           "WL_ON", /* GPIO41 */
  89                           "BT_ON", /* GPIO42 */
  90                           "WIFI_CLK", /* GPIO43 */
  91                           "SDA0", /* GPIO44 */
  92                           "SCL0", /* GPIO45 */
  93                           "SMPS_SCL",
  94                           "SMPS_SDA",
  95                           /* Used by SD Card */
  96                           "SD_CLK_R",
  97                           "SD_CMD_R",
  98                           "SD_DATA0_R",
  99                           "SD_DATA1_R",
 100                           "SD_DATA2_R",
 101                           "SD_DATA3_R";
 102
 103         pinctrl-0 = <&gpioout &alt0>;
 104 };
 105
 106 &hdmi {
 107         hpd-gpios = <&gpio 28 GPIO_ACTIVE_LOW>;
 108         power-domains = <&power RPI_POWER_DOMAIN_HDMI>;
 109         status = "okay";
 110 };
 111
 112 &sdhci {
 113         pinctrl-0 = <&emmc_gpio34 &gpclk2_gpio43>;
 114 };
 115
 116 &sdhost {
 117         pinctrl-names = "default";
 118         pinctrl-0 = <&sdhost_gpio48>;
 119         bus-width = <4>;
 120         status = "okay";
 121 };
 122
 123 &uart0 {
 124         pinctrl-names = "default";
 125         pinctrl-0 = <&uart0_gpio32 &uart0_ctsrts_gpio30>;
 126 };
 127
 128 &uart1 {
 129         pinctrl-names = "default";
 130         pinctrl-0 = <&uart1_gpio14>;
 131         status = "okay";
 132 };
 133
 134 &wifi_pwrseq {
 135         reset-gpios = <&gpio 41 GPIO_ACTIVE_LOW>;
 136 };