tegra234-antmicro-job-usb.dtsi

/*
 * Copyright (c) 2023 Antmicro <www.antmicro.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; version 2 of the License.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 */


/*
 * Placeholders for USB PD and DRP controllers on SYS I2C bus
 * (not implemented)
 */
&gen2_i2c {
	/*
	 * TPS65988 dual-port USB-C Power Delivery controller
	 * port1 is USBC3 (J3) @ i2c_addr=h23
	 * port2 is USBC0 (J4) @ i2c_addr=h27
	 */
	job_usbc3_pdc: tps65988@23 {
		compatible = "ti,tps6598x";
		status = "disabled";
		reg = <0x23>;
	};

	job_usbc0_pdc: tps65988@27 {
		compatible = "ti,tps6598x";
		status = "disabled";
		reg = <0x27>;
	};

	/*
	 * HD3SS3220 dual role port controller for USBC1 port
	 * NOTE: this is just a DRD/DRP without Power Delivery
	 */
	job_usbc1_drpc: hd3ss3220@47 {
		compatible = "ti,hd3ss3220";
		status = "disabled";
		reg = <0x47>;
	};
};

/ {
	bus@0 {
		xusb_padctl: padctl@3520000 {
			/*
			* See Documentation/devicetree/bindings/phy/
			* nvidia,tegra124-xusb-padctl.txt for reference
			*/
			status = "okay";
			pads {
				usb2 {
					lanes {
						usb2-0 {
							nvidia,function = "xusb";
							status = "okay";
						};
						usb2-1 {
							nvidia,function = "xusb";
							status = "okay";
						};
						usb2-2 {
							nvidia,function = "xusb";
							status = "okay";
						};
					};
				};
				usb3 {
					lanes {
						usb3-0 {
							nvidia,function = "xusb";
							status = "okay";
						};
						usb3-1 {
							nvidia,function = "xusb";
							status = "okay";
						};
						usb3-2 {
							nvidia,function = "xusb";
							status = "okay";
						};
					};
				};
			};

			ports {
				/* USB-C 0 */
				usb2-2 {
					mode = "host";
					/* Delegate switching to HW (consider VBUS always on) */
					vbus-supply = <&job_reg_5v>;
					status = "okay";
					connector {
						compatible = "usb-c-connector";
						label = "USB-C 0";
					};
				};
				usb3-0 {
					nvidia,usb2-companion = <2>;
					status = "okay";
				};

				/* USB-C 1 (also functions as a Jetson recovery port) */
				usb2-0 {
					mode = "otg";
					status = "okay";
					/* Delegate switching to HW (consider VBUS always on) */
					vbus-supply = <&job_reg_5v>;
					usb-role-switch;
					connector {
						compatible = "gpio-usb-b-connector", "usb-b-connector";
						label = "micro-USB";
						type = "micro";
						vbus-gpios = <&gpio TEGRA234_MAIN_GPIO(Z, 1) GPIO_ACTIVE_LOW>;
						id-gpios = <&job_gpio_expander 2 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
					};
				};
				usb3-2 {
					nvidia,usb2-companion = <0>;
					status = "okay";
				};

				/* USB on M.2 & extension connector */
				usb2-1 {
					mode = "host";
					/* VBUS is always on */
					vbus-supply = <&job_reg_5v>;
					status = "okay";
				};
				usb3-1 {
					nvidia,usb2-companion = <1>;
					status = "okay";
				};
			};
		};

		/* USB Device controller */
		tegra_xudc: usb@3550000 {
			status = "okay";
			phys = <&{/bus@0/padctl@3520000/pads/usb2/lanes/usb2-0}>,
				<&{/bus@0/padctl@3520000/pads/usb3/lanes/usb3-2}>;
			phy-names = "usb2-0", "usb3-2";
			nvidia,xusb-padctl = <&xusb_padctl>;
		};

		/* USB Host controller */
		tegra_xhci: usb@3610000 {
			status = "okay";
			phys = <&{/bus@0/padctl@3520000/pads/usb2/lanes/usb2-0}>,
				<&{/bus@0/padctl@3520000/pads/usb2/lanes/usb2-1}>,
				<&{/bus@0/padctl@3520000/pads/usb2/lanes/usb2-2}>,
				<&{/bus@0/padctl@3520000/pads/usb3/lanes/usb3-0}>,
				<&{/bus@0/padctl@3520000/pads/usb3/lanes/usb3-1}>,
				<&{/bus@0/padctl@3520000/pads/usb3/lanes/usb3-2}>;
			phy-names = "usb2-0", "usb2-1", "usb2-2", "usb3-0", "usb3-1", "usb3-2";
			nvidia,xusb-padctl = <&xusb_padctl>;
		};
	};
};