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
  11 / {
  12         compatible = "raspberrypi,model-zero-w", "brcm,bcm2835";
  13         model = "Raspberry Pi Zero W";
  14
  15         chosen {
  16                 /* 8250 auxiliary UART instead of pl011 */
  17                 stdout-path = "serial1:115200n8";
  18         };
  19
  20         leds {
  21                 act {
  22                         gpios = <&gpio 47 GPIO_ACTIVE_HIGH>;
  23                 };
  24         };
  25
  26         wifi_pwrseq: wifi-pwrseq {
  27                 compatible = "mmc-pwrseq-simple";
  28                 reset-gpios = <&gpio 41 GPIO_ACTIVE_LOW>;
  29         };
  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                           "SDA0",
  71                           "SCL0",
  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_GPIO1", /* GPIO40 */
  83                           "WL_ON", /* GPIO41 */
  84                           "NC", /* GPIO42 */
  85                           "WIFI_CLK", /* GPIO43 */
  86                           "CAM_GPIO0", /* GPIO44 */
  87                           "BT_ON", /* GPIO45 */
  88                           "HDMI_HPD_N",
  89                           "STATUS_LED_N",
  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-0 = <&gpioout &alt0>;
  99 };
 100
 101 &hdmi {
 102         hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
 103 };
 104
 105 &sdhci {
 106         #address-cells = <1>;
 107         #size-cells = <0>;
 108         pinctrl-0 = <&emmc_gpio34 &gpclk2_gpio43>;
 109         mmc-pwrseq = <&wifi_pwrseq>;
 110         non-removable;
 111         status = "okay";
 112
 113         brcmf: wifi@1 {
 114                 reg = <1>;
 115                 compatible = "brcm,bcm4329-fmac";
 116         };
 117 };
 118
 119 &uart0 {
 120         pinctrl-names = "default";
 121         pinctrl-0 = <&uart0_gpio32 &uart0_ctsrts_gpio30>;
 122         status = "okay";
 123
 124         bluetooth {
 125                 compatible = "brcm,bcm43438-bt";
 126                 max-speed = <2000000>;
 127                 shutdown-gpios = <&gpio 45 GPIO_ACTIVE_HIGH>;
 128         };
 129 };
 130
 131 &uart1 {
 132         pinctrl-names = "default";
 133         pinctrl-0 = <&uart1_gpio14>;
 134         status = "okay";
 135 };