0001 // SPDX-License-Identifier: GPL-2.0
0002 /dts-v1/;
0003 #include "bcm2837.dtsi"
0004 #include "bcm2836-rpi.dtsi"
0005 #include "bcm283x-rpi-lan7515.dtsi"
0006 #include "bcm283x-rpi-usb-host.dtsi"
0007 #include "bcm283x-rpi-wifi-bt.dtsi"
0008
0009 / {
0010 compatible = "raspberrypi,3-model-b-plus", "brcm,bcm2837";
0011 model = "Raspberry Pi 3 Model B+";
0012
0013 chosen {
0014 /* 8250 auxiliary UART instead of pl011 */
0015 stdout-path = "serial1:115200n8";
0016 };
0017
0018 memory@0 {
0019 device_type = "memory";
0020 reg = <0 0x40000000>;
0021 };
0022
0023 leds {
0024 led-act {
0025 gpios = <&gpio 29 GPIO_ACTIVE_HIGH>;
0026 };
0027
0028 led-pwr {
0029 label = "PWR";
0030 gpios = <&expgpio 2 GPIO_ACTIVE_LOW>;
0031 default-state = "keep";
0032 linux,default-trigger = "default-on";
0033 };
0034 };
0035 };
0036
0037 &bt {
0038 shutdown-gpios = <&expgpio 0 GPIO_ACTIVE_HIGH>;
0039 };
0040
0041 &firmware {
0042 expgpio: gpio {
0043 compatible = "raspberrypi,firmware-gpio";
0044 gpio-controller;
0045 #gpio-cells = <2>;
0046 gpio-line-names = "BT_ON",
0047 "WL_ON",
0048 "PWR_LED_R",
0049 "LAN_RUN",
0050 "",
0051 "CAM_GPIO0",
0052 "CAM_GPIO1",
0053 "";
0054 status = "okay";
0055 };
0056 };
0057
0058 &gpio {
0059 /*
0060 * Taken from rpi_SCH_3bplus_1p0_reduced.pdf and
0061 * the official GPU firmware DT blob.
0062 *
0063 * Legend:
0064 * "FOO" = GPIO line named "FOO" on the schematic
0065 * "FOO_N" = GPIO line named "FOO" on schematic, active low
0066 */
0067 gpio-line-names = "ID_SDA",
0068 "ID_SCL",
0069 "SDA1",
0070 "SCL1",
0071 "GPIO_GCLK",
0072 "GPIO5",
0073 "GPIO6",
0074 "SPI_CE1_N",
0075 "SPI_CE0_N",
0076 "SPI_MISO",
0077 "SPI_MOSI",
0078 "SPI_SCLK",
0079 "GPIO12",
0080 "GPIO13",
0081 /* Serial port */
0082 "TXD1",
0083 "RXD1",
0084 "GPIO16",
0085 "GPIO17",
0086 "GPIO18",
0087 "GPIO19",
0088 "GPIO20",
0089 "GPIO21",
0090 "GPIO22",
0091 "GPIO23",
0092 "GPIO24",
0093 "GPIO25",
0094 "GPIO26",
0095 "GPIO27",
0096 "HDMI_HPD_N",
0097 "STATUS_LED_G",
0098 /* Used by BT module */
0099 "CTS0",
0100 "RTS0",
0101 "TXD0",
0102 "RXD0",
0103 /* Used by Wifi */
0104 "SD1_CLK",
0105 "SD1_CMD",
0106 "SD1_DATA0",
0107 "SD1_DATA1",
0108 "SD1_DATA2",
0109 "SD1_DATA3",
0110 "PWM0_OUT",
0111 "PWM1_OUT",
0112 "ETH_CLK",
0113 "WIFI_CLK",
0114 "SDA0",
0115 "SCL0",
0116 "SMPS_SCL",
0117 "SMPS_SDA",
0118 /* Used by SD Card */
0119 "SD_CLK_R",
0120 "SD_CMD_R",
0121 "SD_DATA0_R",
0122 "SD_DATA1_R",
0123 "SD_DATA2_R",
0124 "SD_DATA3_R";
0125 };
0126
0127 &hdmi {
0128 hpd-gpios = <&gpio 28 GPIO_ACTIVE_LOW>;
0129 power-domains = <&power RPI_POWER_DOMAIN_HDMI>;
0130 status = "okay";
0131 };
0132
0133 &pwm {
0134 pinctrl-names = "default";
0135 pinctrl-0 = <&pwm0_gpio40 &pwm1_gpio41>;
0136 status = "okay";
0137 };
0138
0139 /* SDHOST is used to drive the SD card */
0140 &sdhost {
0141 pinctrl-names = "default";
0142 pinctrl-0 = <&sdhost_gpio48>;
0143 status = "okay";
0144 bus-width = <4>;
0145 };
0146
0147 /* uart0 communicates with the BT module */
0148 &uart0 {
0149 pinctrl-names = "default";
0150 pinctrl-0 = <&uart0_ctsrts_gpio30 &uart0_gpio32 &gpclk2_gpio43>;
0151 };
0152
0153 /* uart1 is mapped to the pin header */
0154 &uart1 {
0155 pinctrl-names = "default";
0156 pinctrl-0 = <&uart1_gpio14>;
0157 status = "okay";
0158 };
0159
0160 &wifi_pwrseq {
0161 reset-gpios = <&expgpio 1 GPIO_ACTIVE_LOW>;
0162 };
