arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts

   1 // SPDX-License-Identifier: GPL-2.0
   2 /dts-v1/;
   3 #include "bcm2837.dtsi"
   4 #include "bcm2836-rpi.dtsi"
   5 #include "bcm283x-rpi-lan7515.dtsi"
   6 #include "bcm283x-rpi-usb-host.dtsi"
   7
   8 / {
   9         compatible = "raspberrypi,3-model-b-plus", "brcm,bcm2837";
  10         model = "Raspberry Pi 3 Model B+";
  11
  12         chosen {
  13                 /* 8250 auxiliary UART instead of pl011 */
  14                 stdout-path = "serial1:115200n8";
  15         };
  16
  17         memory@0 {
  18                 device_type = "memory";
  19                 reg = <0 0x40000000>;
  20         };
  21
  22         leds {
  23                 act {
  24                         gpios = <&gpio 29 GPIO_ACTIVE_HIGH>;
  25                 };
  26
  27                 pwr {
  28                         label = "PWR";
  29                         gpios = <&expgpio 2 GPIO_ACTIVE_LOW>;
  30                 };
  31         };
  32
  33         wifi_pwrseq: wifi-pwrseq {
  34                 compatible = "mmc-pwrseq-simple";
  35                 reset-gpios = <&expgpio 1 GPIO_ACTIVE_LOW>;
  36         };
  37 };
  38
  39 &firmware {
  40         expgpio: gpio {
  41                 compatible = "raspberrypi,firmware-gpio";
  42                 gpio-controller;
  43                 #gpio-cells = <2>;
  44                 gpio-line-names = "BT_ON",
  45                                   "WL_ON",
  46                                   "STATUS_LED_R",
  47                                   "LAN_RUN",
  48                                   "",
  49                                   "CAM_GPIO0",
  50                                   "CAM_GPIO1",
  51                                   "";
  52                 status = "okay";
  53         };
  54 };
  55
  56 &gpio {
  57         /*
  58          * Taken from rpi_SCH_3bplus_1p0_reduced.pdf and
  59          * the official GPU firmware DT blob.
  60          *
  61          * Legend:
  62          * "NC" = not connected (no rail from the SoC)
  63          * "FOO" = GPIO line named "FOO" on the schematic
  64          * "FOO_N" = GPIO line named "FOO" on schematic, active low
  65          */
  66         gpio-line-names = "ID_SDA",
  67                           "ID_SCL",
  68                           "SDA1",
  69                           "SCL1",
  70                           "GPIO_GCLK",
  71                           "GPIO5",
  72                           "GPIO6",
  73                           "SPI_CE1_N",
  74                           "SPI_CE0_N",
  75                           "SPI_MISO",
  76                           "SPI_MOSI",
  77                           "SPI_SCLK",
  78                           "GPIO12",
  79                           "GPIO13",
  80                           /* Serial port */
  81                           "TXD1",
  82                           "RXD1",
  83                           "GPIO16",
  84                           "GPIO17",
  85                           "GPIO18",
  86                           "GPIO19",
  87                           "GPIO20",
  88                           "GPIO21",
  89                           "GPIO22",
  90                           "GPIO23",
  91                           "GPIO24",
  92                           "GPIO25",
  93                           "GPIO26",
  94                           "GPIO27",
  95                           "HDMI_HPD_N",
  96                           "STATUS_LED_G",
  97                           /* Used by BT module */
  98                           "CTS0",
  99                           "RTS0",
 100                           "TXD0",
 101                           "RXD0",
 102                           /* Used by Wifi */
 103                           "SD1_CLK",
 104                           "SD1_CMD",
 105                           "SD1_DATA0",
 106                           "SD1_DATA1",
 107                           "SD1_DATA2",
 108                           "SD1_DATA3",
 109                           "PWM0_OUT",
 110                           "PWM1_OUT",
 111                           "ETHCLK",
 112                           "WIFI_CLK",
 113                           "SDA0",
 114                           "SCL0",
 115                           "SMPS_SCL",
 116                           "SMPS_SDA",
 117                           /* Used by SD Card */
 118                           "SD_CLK_R",
 119                           "SD_CMD_R",
 120                           "SD_DATA0_R",
 121                           "SD_DATA1_R",
 122                           "SD_DATA2_R",
 123                           "SD_DATA3_R";
 124 };
 125
 126 &hdmi {
 127         hpd-gpios = <&gpio 28 GPIO_ACTIVE_LOW>;
 128         power-domains = <&power RPI_POWER_DOMAIN_HDMI>;
 129         status = "okay";
 130 };
 131
 132 &pwm {
 133         pinctrl-names = "default";
 134         pinctrl-0 = <&pwm0_gpio40 &pwm1_gpio41>;
 135         status = "okay";
 136 };
 137
 138 /* SDHCI is used to control the SDIO for wireless */
 139 &sdhci {
 140         #address-cells = <1>;
 141         #size-cells = <0>;
 142         pinctrl-names = "default";
 143         pinctrl-0 = <&emmc_gpio34>;
 144         status = "okay";
 145         bus-width = <4>;
 146         non-removable;
 147         mmc-pwrseq = <&wifi_pwrseq>;
 148
 149         brcmf: wifi@1 {
 150                 reg = <1>;
 151                 compatible = "brcm,bcm4329-fmac";
 152         };
 153 };
 154
 155 /* SDHOST is used to drive the SD card */
 156 &sdhost {
 157         pinctrl-names = "default";
 158         pinctrl-0 = <&sdhost_gpio48>;
 159         status = "okay";
 160         bus-width = <4>;
 161 };
 162
 163 /* uart0 communicates with the BT module */
 164 &uart0 {
 165         pinctrl-names = "default";
 166         pinctrl-0 = <&uart0_ctsrts_gpio30 &uart0_gpio32 &gpclk2_gpio43>;
 167         status = "okay";
 168
 169         bluetooth {
 170                 compatible = "brcm,bcm43438-bt";
 171                 max-speed = <2000000>;
 172                 shutdown-gpios = <&expgpio 0 GPIO_ACTIVE_HIGH>;
 173         };
 174 };
 175
 176 /* uart1 is mapped to the pin header */
 177 &uart1 {
 178         pinctrl-names = "default";
 179         pinctrl-0 = <&uart1_gpio14>;
 180         status = "okay";
 181 };