arch/arm/boot/dts/broadcom/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-led-deprecated.dtsi"
  10 #include "bcm283x-rpi-usb-otg.dtsi"
  11 #include "bcm283x-rpi-wifi-bt.dtsi"
  12
  13 / {
  14         compatible = "raspberrypi,model-zero-2-w", "brcm,bcm2837";
  15         model = "Raspberry Pi Zero 2 W";
  16
  17         memory@0 {
  18                 device_type = "memory";
  19                 reg = <0 0x20000000>;
  20         };
  21
  22         chosen {
  23                 /* 8250 auxiliary UART instead of pl011 */
  24                 stdout-path = "serial1:115200n8";
  25         };
  26 };
  27
  28 &bt {
  29         shutdown-gpios = <&gpio 42 GPIO_ACTIVE_HIGH>;
  30 };
  31
  32 &gpio {
  33         /*
  34          * This is based on the official GPU firmware DT blob.
  35          *
  36          * Legend:
  37          * "NC" = not connected (no rail from the SoC)
  38          * "FOO" = GPIO line named "FOO" on the schematic
  39          * "FOO_N" = GPIO line named "FOO" on schematic, active low
  40          */
  41         gpio-line-names = "ID_SDA",
  42                           "ID_SCL",
  43                           "SDA1",
  44                           "SCL1",
  45                           "GPIO_GCLK",
  46                           "GPIO5",
  47                           "GPIO6",
  48                           "SPI_CE1_N",
  49                           "SPI_CE0_N",
  50                           "SPI_MISO",
  51                           "SPI_MOSI",
  52                           "SPI_SCLK",
  53                           "GPIO12",
  54                           "GPIO13",
  55                           /* Serial port */
  56                           "TXD0",
  57                           "RXD0",
  58                           "GPIO16",
  59                           "GPIO17",
  60                           "GPIO18",
  61                           "GPIO19",
  62                           "GPIO20",
  63                           "GPIO21",
  64                           "GPIO22",
  65                           "GPIO23",
  66                           "GPIO24",
  67                           "GPIO25",
  68                           "GPIO26",
  69                           "GPIO27",
  70                           "HDMI_HPD_N",
  71                           "STATUS_LED_N",
  72                           "NC", /* GPIO30 */
  73                           "NC", /* GPIO31 */
  74                           "NC", /* GPIO32 */
  75                           "NC", /* GPIO33 */
  76                           "NC", /* GPIO34 */
  77                           "NC", /* GPIO35 */
  78                           "NC", /* GPIO36 */
  79                           "NC", /* GPIO37 */
  80                           "NC", /* GPIO38 */
  81                           "NC", /* GPIO39 */
  82                           "CAM_GPIO0", /* GPIO40 */
  83                           "WL_ON", /* GPIO41 */
  84                           "BT_ON", /* GPIO42 */
  85                           "WIFI_CLK", /* GPIO43 */
  86                           "SDA0", /* GPIO44 */
  87                           "SCL0", /* GPIO45 */
  88                           "SMPS_SCL",
  89                           "SMPS_SDA",
  90                           /* Used by SD Card */
  91                           "SD_CLK_R",
  92                           "SD_CMD_R",
  93                           "SD_DATA0_R",
  94                           "SD_DATA1_R",
  95                           "SD_DATA2_R",
  96                           "SD_DATA3_R";
  97
  98         pinctrl-names = "default";
  99         pinctrl-0 = <&gpioout &alt0>;
 100 };
 101
 102 &hdmi {
 103         hpd-gpios = <&gpio 28 GPIO_ACTIVE_LOW>;
 104         power-domains = <&power RPI_POWER_DOMAIN_HDMI>;
 105         status = "okay";
 106 };
 107
 108 &led_act {
 109         gpios = <&gpio 29 GPIO_ACTIVE_LOW>;
 110 };
 111
 112 &sdhci {
 113         pinctrl-names = "default";
 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 };