218 lines
3.9 KiB
Plaintext
218 lines
3.9 KiB
Plaintext
// 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>;
|
|
};
|