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