bcm2711-rpi-cm4.dts

// SPDX-License-Identifier: GPL-2.0
/dts-v1/;
#define BCM2711
#define i2c0 i2c0if
#include "../../../arm/boot/dts/bcm2711.dtsi"
#include "../../../arm/boot/dts/bcm283x-rpi-wifi-bt.dtsi"
#undef i2c0
#include "../../../arm/boot/dts/bcm270x.dtsi"
#define i2c0 i2c0mux
#include "../../../arm/boot/dts/bcm2711-rpi.dtsi"
#undef i2c0
//#include "bcm283x-rpi-usb-peripheral.dtsi"

/ {
	compatible = "raspberrypi,4-compute-module", "brcm,bcm2711";
	model = "Raspberry Pi Compute Module 4";

	chosen {
		/* 8250 auxiliary UART instead of pl011 */
		stdout-path = "serial1:115200n8";
	};

	leds {
		led-act {
			label = "ACT";
			gpios = <&gpio 42 GPIO_ACTIVE_HIGH>;
			default-state = "keep";
			linux,default-trigger = "heartbeat";
		};

		led-pwr {
			label = "PWR";
			gpios = <&expgpio 2 GPIO_ACTIVE_LOW>;
			default-state = "keep";
			linux,default-trigger = "heartbeat";
		};
	};

	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";
	};

	sd_vcc_reg: sd_vcc_reg {
		compatible = "regulator-fixed";
		regulator-name = "vcc-sd";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		regulator-boot-on;
		enable-active-high;
		gpio = <&expgpio 6 GPIO_ACTIVE_HIGH>;
	};
};

&bt {
	shutdown-gpios = <&expgpio 0 GPIO_ACTIVE_HIGH>;
};

&ddc0 {
	status = "okay";
};

&ddc1 {
	status = "okay";
};

&expgpio {
	gpio-line-names = "BT_ON",
			  "WL_ON",
			  "PWR_LED_OFF",
			  "ANT1",
			  "VDD_SD_IO_SEL",
			  "CAM_GPIO",
			  "SD_PWR_ON",
			  "ANT2";

	ant1: ant1 {
		gpio-hog;
		gpios = <3 GPIO_ACTIVE_HIGH>;
		output-high;
	};

	ant2: ant2 {
		gpio-hog;
		gpios = <7 GPIO_ACTIVE_HIGH>;
		output-low;
	};
};

&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";
};

&hdmi0 {
	status = "okay";
};

&hdmi1 {
	status = "okay";
};

&pixelvalve0 {
	status = "okay";
};

&pixelvalve1 {
	status = "okay";
};

&pixelvalve2 {
	status = "okay";
};

&pixelvalve4 {
	status = "okay";
};

&pwm1 {
	pinctrl-names = "default";
	pinctrl-0 = <&pwm1_0_gpio40 &pwm1_1_gpio41>;
	status = "okay";
};

/* EMMC2 is used to drive the EMMC card */
&emmc2 {
	bus-width = <8>;
	vqmmc-supply = <&sd_io_1v8_reg>;
	vmmc-supply = <&sd_vcc_reg>;
	broken-cd;
	status = "okay";
};

&genet {
	phy-handle = <&phy1>;
	phy-mode = "rgmii-rxid";
	status = "okay";
};

&genet_mdio {
	phy1: ethernet-phy@0 {
		/* No PHY interrupt */
		reg = <0x0>;
	};
};

&pcie0 {
	pci@0,0 {
		device_type = "pci";
		#address-cells = <3>;
		#size-cells = <2>;
		ranges;

		reg = <0 0 0 0 0>;
	};
};

/* uart0 communicates with the BT module */
&uart0 {
	pinctrl-names = "default";
	pinctrl-0 = <&uart0_ctsrts_gpio30 &uart0_gpio32>;
	uart-has-rtscts;
};

/* uart1 is mapped to the pin header */
&uart1 {
	pinctrl-names = "default";
	pinctrl-0 = <&uart1_gpio14>;
	status = "okay";
};

&vc4 {
	status = "okay";
};

&vec {
	status = "disabled";
};

&wifi_pwrseq {
	reset-gpios = <&expgpio 1 GPIO_ACTIVE_LOW>;
};

// =============================================
// Downstream rpi- changes

#include "../../../arm/boot/dts/bcm271x-rpi-bt.dtsi"

/ {
	soc {
		/delete-node/ pixelvalve@7e807000;
		/delete-node/ hdmi@7e902000;
	};
};

#include "../../../arm/boot/dts/bcm2711-rpi-ds.dtsi"
#include "../../../arm/boot/dts/bcm283x-rpi-csi0-2lane.dtsi"
#include "../../../arm/boot/dts/bcm283x-rpi-csi1-4lane.dtsi"
#include "../../../arm/boot/dts/bcm283x-rpi-i2c0mux_0_44.dtsi"

/ {
	chosen {
		bootargs = "coherent_pool=1M 8250.nr_uarts=1 snd_bcm2835.enable_headphones=0 quiet";
	};

	/delete-node/ wifi-pwrseq;
};

&mmcnr {
	pinctrl-names = "default";
	pinctrl-0 = <&sdio_pins>;
	bus-width = <4>;
	status = "okay";
};

&uart0 {
	pinctrl-0 = <&uart0_pins &bt_pins>;
	status = "okay";
};

&uart1 {
	pinctrl-0 = <&uart1_pins>;
};

&spi0 {
	pinctrl-names = "default";
	pinctrl-0 = <&spi0_pins &spi0_cs_pins>;
	cs-gpios = <&gpio 8 1>, <&gpio 7 1>;
	status = "okay";

	spidev0: spidev@0{
		compatible = "spidev";
		reg = <0>;	/* CE0 */
		#address-cells = <1>;
		#size-cells = <0>;
		spi-max-frequency = <125000000>;
	};

	spidev1: spidev@1{
		compatible = "spidev";
		reg = <1>;	/* CE1 */
		#address-cells = <1>;
		#size-cells = <0>;
		spi-max-frequency = <125000000>;
	};
};

&gpio {
	bt_pins: bt_pins {
		brcm,pins = "-"; // non-empty to keep btuart happy, //4 = 0
				 // to fool pinctrl
		brcm,function = <0>;
		brcm,pull = <2>;
	};

	uart0_pins: uart0_pins {
		brcm,pins = <32 33>;
		brcm,function = <BCM2835_FSEL_ALT3>;
		brcm,pull = <0 2>;
	};

	uart1_pins: uart1_pins {
		brcm,pins;
		brcm,function;
		brcm,pull;
	};

	uart1_bt_pins: uart1_bt_pins {
		brcm,pins = <32 33 30 31>;
		brcm,function = <BCM2835_FSEL_ALT5>; /* alt5=UART1 */
		brcm,pull = <0 2 2 0>;
	};
};

&i2c0if {
	clock-frequency = <100000>;
};

&i2c1 {
	pinctrl-names = "default";
	pinctrl-0 = <&i2c1_pins>;
	clock-frequency = <100000>;
};

&i2s {
	pinctrl-names = "default";
	pinctrl-0 = <&i2s_pins>;
};

// =============================================
// Board specific stuff here

&pcie0 {
       brcm,enable-l1ss;
};

&sdhost {
	status = "disabled";
};

&phy1 {
	led-modes = <0x00 0x08>; /* link/activity link */
};

&gpio {
	audio_pins: audio_pins {
		brcm,pins = <>;
		brcm,function = <>;
	};
};

&leds {
	act_led: led-act {
		default-state = "off";
		linux,default-trigger = "mmc0";
		gpios = <&gpio 42 GPIO_ACTIVE_HIGH>;
	};

	pwr_led: led-pwr {
		default-state = "off";
		linux,default-trigger = "default-on";
		gpios = <&expgpio 2 GPIO_ACTIVE_LOW>;
	};
};

&pwm1 {
	status = "disabled";
};

&vchiq {
	pinctrl-names = "default";
	pinctrl-0 = <&audio_pins>;
};

cam0_reg: &cam1_reg {
	gpio = <&expgpio 5 GPIO_ACTIVE_HIGH>;
};

/ {
	__overrides__ {
		audio = <&chosen>,"bootargs{on='snd_bcm2835.enable_hdmi=1',off='snd_bcm2835.enable_hdmi=0'}";

		act_led_gpio = <&act_led>,"gpios:4";
		act_led_activelow = <&act_led>,"gpios:8";
		act_led_trigger = <&act_led>,"linux,default-trigger";

		pwr_led_gpio = <&pwr_led>,"gpios:4";
		pwr_led_activelow = <&pwr_led>,"gpios:8";
		pwr_led_trigger = <&pwr_led>,"linux,default-trigger";

		eth_led0 = <&phy1>,"led-modes:0";
		eth_led1 = <&phy1>,"led-modes:4";

		ant1 =  <&ant1>,"output-high?=on",
			<&ant1>, "output-low?=off",
			<&ant2>, "output-high?=off",
			<&ant2>, "output-low?=on";
		ant2 =  <&ant1>,"output-high?=off",
			<&ant1>, "output-low?=on",
			<&ant2>, "output-high?=on",
			<&ant2>, "output-low?=off";
		noant = <&ant1>,"output-high?=off",
			<&ant1>, "output-low?=on",
			<&ant2>, "output-high?=off",
			<&ant2>, "output-low?=on";

		cam0_reg = <&cam0_reg>,"status";
		cam0_reg_gpio = <&cam0_reg>,"gpio:4",
				  <&cam0_reg>,"gpio:0=", <&gpio>;
		cam1_reg = <&cam1_reg>,"status";
		cam1_reg_gpio = <&cam1_reg>,"gpio:4",
				  <&cam1_reg>,"gpio:0=", <&gpio>;
	};
};