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// SPDX-License-Identifier: GPL-2.0
/dts-v1/;
#include "bcm2711.dtsi"
#include "bcm2835-rpi.dtsi"
#include "bcm283x-rpi-usb-peripheral.dtsi"
/ {
compatible = "raspberrypi,4-model-b", "brcm,bcm2711";
model = "Raspberry Pi 4 Model B";
chosen {
/* 8250 auxiliary UART instead of pl011 */
stdout-path = "serial1:115200n8";
};
/* Will be filled by the bootloader */
memory@0 {
device_type = "memory";
reg = <0 0 0>;
};
aliases {
emmc2bus = &emmc2bus;
ethernet0 = &genet;
pcie0 = &pcie0;
};
leds {
act {
gpios = <&gpio 42 GPIO_ACTIVE_HIGH>;
};
pwr {
label = "PWR";
gpios = <&expgpio 2 GPIO_ACTIVE_LOW>;
default-state = "keep";
linux,default-trigger = "default-on";
};
};
wifi_pwrseq: wifi-pwrseq {
compatible = "mmc-pwrseq-simple";
reset-gpios = <&expgpio 1 GPIO_ACTIVE_LOW>;
};
sd_io_1v8_reg: sd_io_1v8_reg {
compatible = "regulator-gpio";
regulator-name = "vdd-sd-io";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
regulator-always-on;
regulator-settling-time-us = <5000>;
gpios = <&expgpio 4 GPIO_ACTIVE_HIGH>;
states = <1800000 0x1
3300000 0x0>;
status = "okay";
};
};
&firmware {
expgpio: gpio {
compatible = "raspberrypi,firmware-gpio";
gpio-controller;
#gpio-cells = <2>;
gpio-line-names = "BT_ON",
"WL_ON",
"PWR_LED_OFF",
"GLOBAL_RESET",
"VDD_SD_IO_SEL",
"CAM_GPIO",
"",
"";
status = "okay";
};
};
&gpio {
/*
* Parts taken from rpi_SCH_4b_4p0_reduced.pdf and
* the official GPU firmware DT blob.
*
* Legend:
* "FOO" = GPIO line named "FOO" on the schematic
* "FOO_N" = GPIO line named "FOO" on schematic, active low
*/
gpio-line-names = "ID_SDA",
"ID_SCL",
"SDA1",
"SCL1",
"GPIO_GCLK",
"GPIO5",
"GPIO6",
"SPI_CE1_N",
"SPI_CE0_N",
"SPI_MISO",
"SPI_MOSI",
"SPI_SCLK",
"GPIO12",
"GPIO13",
/* Serial port */
"TXD1",
"RXD1",
"GPIO16",
"GPIO17",
"GPIO18",
"GPIO19",
"GPIO20",
"GPIO21",
"GPIO22",
"GPIO23",
"GPIO24",
"GPIO25",
"GPIO26",
"GPIO27",
"RGMII_MDIO",
"RGMIO_MDC",
/* Used by BT module */
"CTS0",
"RTS0",
"TXD0",
"RXD0",
/* Used by Wifi */
"SD1_CLK",
"SD1_CMD",
"SD1_DATA0",
"SD1_DATA1",
"SD1_DATA2",
"SD1_DATA3",
/* Shared with SPI flash */
"PWM0_MISO",
"PWM1_MOSI",
"STATUS_LED_G_CLK",
"SPIFLASH_CE_N",
"SDA0",
"SCL0",
"RGMII_RXCLK",
"RGMII_RXCTL",
"RGMII_RXD0",
"RGMII_RXD1",
"RGMII_RXD2",
"RGMII_RXD3",
"RGMII_TXCLK",
"RGMII_TXCTL",
"RGMII_TXD0",
"RGMII_TXD1",
"RGMII_TXD2",
"RGMII_TXD3";
};
&pwm1 {
pinctrl-names = "default";
pinctrl-0 = <&pwm1_0_gpio40 &pwm1_1_gpio41>;
status = "okay";
};
/* SDHCI is used to control the SDIO for wireless */
&sdhci {
#address-cells = <1>;
#size-cells = <0>;
pinctrl-names = "default";
pinctrl-0 = <&emmc_gpio34>;
bus-width = <4>;
non-removable;
mmc-pwrseq = <&wifi_pwrseq>;
status = "okay";
brcmf: wifi@1 {
reg = <1>;
compatible = "brcm,bcm4329-fmac";
};
};
/* EMMC2 is used to drive the SD card */
&emmc2 {
vqmmc-supply = <&sd_io_1v8_reg>;
broken-cd;
status = "okay";
};
&genet {
phy-handle = <&phy1>;
phy-mode = "rgmii-rxid";
status = "okay";
};
&genet_mdio {
phy1: ethernet-phy@1 {
/* No PHY interrupt */
reg = <0x1>;
};
};
/* uart0 communicates with the BT module */
&uart0 {
pinctrl-names = "default";
pinctrl-0 = <&uart0_ctsrts_gpio30 &uart0_gpio32>;
uart-has-rtscts;
status = "okay";
bluetooth {
compatible = "brcm,bcm43438-bt";
max-speed = <2000000>;
shutdown-gpios = <&expgpio 0 GPIO_ACTIVE_HIGH>;
};
};
/* uart1 is mapped to the pin header */
&uart1 {
pinctrl-names = "default";
pinctrl-0 = <&uart1_gpio14>;
status = "okay";
};
&vchiq {
interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
};
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