Commit ea93ada0 authored by Stefan Wahren's avatar Stefan Wahren Committed by Nicolas Saenz Julienne
Browse files

ARM: dts: Add Raspberry Pi Compute Module 4 IO Board 



This adds the matching carrier for Raspberry Pi Compute Module 4.
Instead of xHCI USB host controller there is just a USB 2.0 interface
connected to the DWC2 controller from the BCM2711. As a result
there is a free PCIe Gen 2 socket. Also there are 2 full-size HDMI 2.0
connectors.

Signed-off-by: default avatarStefan Wahren <stefan.wahren@i2se.com>
Link: https://lore.kernel.org/r/1628334401-6577-10-git-send-email-stefan.wahren@i2se.com


Signed-off-by: default avatarNicolas Saenz Julienne <nsaenz@kernel.org>
parent d1b2237b

arch/arm/boot/dts/Makefile

+1 −0
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@@ -92,6 +92,7 @@ dtb-$(CONFIG_ARCH_BCM2835) += \ 
	bcm2837-rpi-cm3-io3.dtb \

	bcm2711-rpi-400.dtb \

	bcm2711-rpi-4-b.dtb \

	bcm2711-rpi-cm4-io.dtb \

	bcm2835-rpi-zero.dtb \

	bcm2835-rpi-zero-w.dtb

dtb-$(CONFIG_ARCH_BCM_5301X) += \

arch/arm/boot/dts/bcm2711-rpi-cm4-io.dts

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+138 −0
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// SPDX-License-Identifier: GPL-2.0

/dts-v1/;

#include "bcm2711-rpi-cm4.dtsi"

#include "bcm283x-rpi-usb-host.dtsi"



/ {

	model = "Raspberry Pi Compute Module 4 IO Board";



	leds {

		led-act {

			gpios = <&gpio 42 GPIO_ACTIVE_HIGH>;

		};



		led-pwr {

			label = "PWR";

			gpios = <&expgpio 2 GPIO_ACTIVE_LOW>;

			default-state = "keep";

			linux,default-trigger = "default-on";

		};

	};

};



&ddc0 {

	status = "okay";

};



&ddc1 {

	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";

};



&hdmi0 {

	status = "okay";

};



&hdmi1 {

	status = "okay";

};



&genet {

	status = "okay";

};



&pixelvalve0 {

	status = "okay";

};



&pixelvalve1 {

	status = "okay";

};



&pixelvalve2 {

	status = "okay";

};



&pixelvalve4 {

	status = "okay";

};



&vc4 {

	status = "okay";

};



&vec {

	status = "disabled";

};