How to set usb3.0 as device mode in orin nx

alive · April 23, 2023, 10:47am

I want to use the type-c interface in custom carrier boart as the device mode, In this way, i can through pc get orin nx’s data. now i can use micro usb into device mode, and i want to know, whether i can set type-c who support usb3.0 mode into deivce mode.
in custom carrier boart have 3 type-c interface, usb3-0 ~ usb3-2.

xusb_padctl: xusb_padctl@3520000 {
		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 {
			usb2-0 {
				mode = "peripheral";
				status = "okay";
                                vbus-supply = <&p3509_vdd_5v_sys>;
#if TEGRA_XUSB_DT_VERSION >= DT_VERSION_3
				usb-role-switch;
				connector {
					compatible = "usb-b-connector", "gpio-usb-b-connector";
 					label = "micro-USB";
 					type = "micro";
 					vbus-gpio = <USB_ROLE_DEVICE>;
					cable-connected-on-boot = <USB_ROLE_DEVICE>;
 				};
#endif
			};
			usb2-1 {
				mode = "host";
                                vbus-supply = <&p3509_vdd_av10_hub>;
				status = "okay";
			};
			usb2-2 {/* Goes to M2.E */
				mode = "host";
                                vbus-supply = <&p3509_vdd_5v_sys>;
				status = "okay";
			};
			usb3-0 {
				status = "okay";
				nvidia,usb2-companion = <1>;
			};
			usb3-1 {
				nvidia,usb2-companion = <1>;
				status = "okay";
			};
			usb3-2 {
				nvidia,usb2-companion = <1>;
				status = "okay";
			};
		};
	};

	tegra_xudc: xudc@3550000 {
		status = "okay";
		phys = <&{/xusb_padctl@3520000/pads/usb2/lanes/usb2-0}>;
		phy-names = "usb2-0";
		nvidia,xusb-padctl = <&xusb_padctl>;
	};

	tegra_xhci: xhci@3610000 {
		status = "okay";
		nvidia,use-typec-switch;
		phys = <&{/xusb_padctl@3520000/pads/usb2/lanes/usb2-1}>,
			<&{/xusb_padctl@3520000/pads/usb2/lanes/usb2-2}>,
			<&{/xusb_padctl@3520000/pads/usb3/lanes/usb3-0}>,
			<&{/xusb_padctl@3520000/pads/usb3/lanes/usb3-1}>,
			<&{/xusb_padctl@3520000/pads/usb3/lanes/usb3-2}>;
		phy-names = "usb2-1", "usb2-2", "usb3-0","usb3-1", "usb3-2";
		nvidia,xusb-padctl = <&xusb_padctl>;
	};

alive · April 23, 2023, 11:13am

I have gained some information on other topics, and I have done similar things, but unfortunately, it still doesn’t work.

xusb_padctl: xusb_padctl@3520000 {
		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 {
			usb2-0 {
				mode = "peripheral";
				status = "okay";
                                vbus-supply = <&p3509_vdd_5v_sys>;
#if TEGRA_XUSB_DT_VERSION >= DT_VERSION_3
				usb-role-switch;
				connector {
					compatible = "usb-b-connector", "gpio-usb-b-connector";
 					label = "micro-USB";
 					type = "micro";
 					vbus-gpio = <USB_ROLE_DEVICE>;
					cable-connected-on-boot = <USB_ROLE_DEVICE>;
 				};
#endif
			};
			usb2-1 {
				mode = "host";
                                vbus-supply = <&p3509_vdd_av10_hub>;
				status = "okay";
			};
			usb2-2 {/* Goes to M2.E */
				mode = "host";
                                vbus-supply = <&p3509_vdd_5v_sys>;
				status = "okay";
			};
			usb3-0 {
				status = "okay";
				dr_mode = "peripheral";
				nvidia,usb2-companion = <1>;
			};
			usb3-1 {
				nvidia,usb2-companion = <1>;
				status = "okay";
			};
			usb3-2 {
				nvidia,usb2-companion = <1>;
				status = "okay";
			};
		};
	};

	tegra_xudc: xudc@3550000 {
		status = "okay";
		phys = <&{/xusb_padctl@3520000/pads/usb2/lanes/usb2-0}>,
			<&{/xusb_padctl@3520000/pads/usb3/lanes/usb3-0}>;
		phy-names = "usb2-0", "usb3-0";
		nvidia,xusb-padctl = <&xusb_padctl>;
	};

	tegra_xhci: xhci@3610000 {
		status = "okay";
		nvidia,use-typec-switch;
		phys = <&{/xusb_padctl@3520000/pads/usb2/lanes/usb2-1}>,
			<&{/xusb_padctl@3520000/pads/usb2/lanes/usb2-2}>,
			<&{/xusb_padctl@3520000/pads/usb3/lanes/usb3-1}>,
			<&{/xusb_padctl@3520000/pads/usb3/lanes/usb3-2}>;
		phy-names = "usb2-1", "usb2-2", "usb3-1", "usb3-2";
		nvidia,xusb-padctl = <&xusb_padctl>;
	};

WayneWWW · April 24, 2023, 5:11am

What kind of type C controller is your custom board using for the type C interface?

Any schematic to share?

Have you checked the adaptation guide document?

alive · April 24, 2023, 5:46am

the controller is ti s3200, and the designer of the customized board told me that the design of the board was based on the official documentation.

WayneWWW · April 24, 2023, 7:13am

Why all the nvidia,usb2-companion is same on your device tree?

This should match the hardware usb2 port. Did you read the document or you don’t know what I am talking about?

alive · April 24, 2023, 7:32am

I’m sorry, as a beginner in this field, I did not configure the device tree correctly.Can you give me some advice!
I want to make usb3-1 enter device mode, as a mass storage container accessed by a PC. Any document can help me solve this problem?

WayneWWW · April 24, 2023, 7:45am

Please refer to this section.

https://docs.nvidia.com/jetson/archives/r35.3.1/DeveloperGuide/text/HR/JetsonModuleAdaptationAndBringUp/JetsonAgxOrinSeries.html?highlight=xudc#porting-the-universal-serial-bus

alive · April 24, 2023, 8:55am

i had read the section you remind, and follow the schematic,i had changed the dts part like this

xusb_padctl: xusb_padctl@3520000 {
		status = "okay";
		pads {
			usb2 {
				lanes {
					usb2-0 {
						nvidia,function = "xusb";
						status = "okay";
					};
					usb2-1 {
						nvidia,function = "xusb";
						status = "okay";
					};
					usb2-3 {
						nvidia,function = "xusb";
						status = "okay";
					};
					usb2-4 {
						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 {
			usb2-0 {
				mode = "peripheral";
				status = "okay";
                                vbus-supply = <&p3509_vdd_5v_sys>;
#if TEGRA_XUSB_DT_VERSION >= DT_VERSION_3
				usb-role-switch;
				connector {
					compatible = "usb-b-connector", "gpio-usb-b-connector";
 					label = "micro-USB";
 					type = "micro";
 					vbus-gpio = <USB_ROLE_DEVICE>;
					cable-connected-on-boot = <USB_ROLE_DEVICE>;
 				};
#endif
			};
			usb2-1 {
				mode = "host";
                                vbus-supply = <&p3509_vdd_av10_hub>;
				status = "okay";
			};
			usb2-3 {
				mode = "host";
				vbus-supply = <&p3509_vdd_5v_sys>;
				status = "okay";
			};
			usb2-4 {
				mode = "host";
				vbus-supply = <&p3509_vdd_5v_sys>;
				status = "okay";
			};
			usb3-0 {
				status = "okay";
				nvidia,usb2-companion = <1>;
			};
			usb3-1 {
				nvidia,usb2-companion = <4>;
				status = "okay";
			};
			usb3-2 {
				nvidia,usb2-companion = <3>;
				status = "okay";
			};
		};
	};

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

	tegra_xhci: xhci@3610000 {
		status = "okay";
		nvidia,use-typec-switch;
		phys = <&{/xusb_padctl@3520000/pads/usb2/lanes/usb2-1}>,
			<&{/xusb_padctl@3520000/pads/usb2/lanes/usb2-3}>,
			<&{/xusb_padctl@3520000/pads/usb2/lanes/usb2-4}>,
			<&{/xusb_padctl@3520000/pads/usb3/lanes/usb3-0}>,
			<&{/xusb_padctl@3520000/pads/usb3/lanes/usb3-1}>;
		phy-names = "usb2-1", "usb2-3", "usb2-4", "usb3-0", "usb3-1";
		nvidia,xusb-padctl = <&xusb_padctl>;
	};

WayneWWW · April 24, 2023, 9:00am

What is the exact usb port that you want to set it as device mode?

Your device tree seems having conflict with it.

xudc driver says usb2-0, usb3-2. But your previous setting indicates usb3-2 is not a pair with usb2-0 at all.

alive · April 24, 2023, 9:06am

i want to usb3-2 port as device mode, so i should let usb3-2 pair with usb2-0?
like this?

usb3-2 {
	nvidia,usb2-companion = <0>;
	status = "okay";
};

WayneWWW · April 24, 2023, 9:08am

so i should let usb3-2 pair with usb2-0?

You should check your hardware schematic but not ask me.

alive · April 24, 2023, 9:22am

my mistake, so according to schematic, i should let usb2-3 enter peripheral mode right?
like this:

ports {
			usb2-0 {
				mode = "peripheral";
				status = "disable";
                                vbus-supply = <&p3509_vdd_5v_sys>;
#if TEGRA_XUSB_DT_VERSION >= DT_VERSION_3
				usb-role-switch;
				connector {
					compatible = "usb-b-connector", "gpio-usb-b-connector";
 					label = "micro-USB";
 					type = "micro";
 					vbus-gpio = <USB_ROLE_DEVICE>;
					cable-connected-on-boot = <USB_ROLE_DEVICE>;
 				};
#endif
			};
			usb2-1 {
				mode = "host";
                                vbus-supply = <&p3509_vdd_av10_hub>;
				status = "okay";
			};
			usb2-3 {
				mode = "peripheral";
				status = "okay";
                                vbus-supply = <&p3509_vdd_5v_sys>;
#if TEGRA_XUSB_DT_VERSION >= DT_VERSION_3
				usb-role-switch;
				connector {
					compatible = "usb-c-connector";
 					label = "USB-C";
 					vbus-gpio = <USB_ROLE_DEVICE>;
					cable-connected-on-boot = <USB_ROLE_DEVICE>;
 				};
#endif
			};
			usb2-4 {
				mode = "host";
				vbus-supply = <&p3509_vdd_5v_sys>;
				status = "okay";
			};
			usb3-0 {
				status = "okay";
				nvidia,usb2-companion = <1>;
			};
			usb3-1 {
				nvidia,usb2-companion = <4>;
				status = "okay";
			};
			usb3-2 {
				nvidia,usb2-companion = <3>;
				status = "okay";
			};
		};
	};

	tegra_xudc: xudc@3550000 {
		status = "okay";
		phys = <&{/xusb_padctl@3520000/pads/usb2/lanes/usb2-3}>,
			<&{/xusb_padctl@3520000/pads/usb3/lanes/usb3-2}>;
		phy-names = "usb2-3", "usb3-2";
		nvidia,xusb-padctl = <&xusb_padctl>;
	};

	tegra_xhci: xhci@3610000 {
		status = "okay";
		nvidia,use-typec-switch;
		phys = <&{/xusb_padctl@3520000/pads/usb2/lanes/usb2-1}>,
			<&{/xusb_padctl@3520000/pads/usb2/lanes/usb2-4}>,
			<&{/xusb_padctl@3520000/pads/usb3/lanes/usb3-0}>,
			<&{/xusb_padctl@3520000/pads/usb3/lanes/usb3-1}>;
		phy-names = "usb2-1",  "usb2-4", "usb3-0", "usb3-1";
		nvidia,xusb-padctl = <&xusb_padctl>;
	};

WayneWWW · April 24, 2023, 9:24am

and please disable usb ports which are not present in the schematic.

WayneWWW · April 24, 2023, 9:36am

Please also refer to the kernel/kernel-5.10/Documentation/devicetree/bindings/connector/usb-connector.yaml as the document indicates.

This file is in the kernel public source code.

alive · April 24, 2023, 10:28am

the specified port usb3-2 is still host mode, what i change file is kernel-dts/cvb/tegra234-p3509-a02.dtsi.

ports {
			usb2-0 {
				mode = "peripheral";
				status = "disabled";
                                vbus-supply = <&p3509_vdd_5v_sys>;
#if TEGRA_XUSB_DT_VERSION >= DT_VERSION_3
				usb-role-switch;
				connector {
					compatible = "usb-b-connector", "gpio-usb-b-connector";
 					label = "micro-USB";
 					type = "micro";
 					vbus-gpio = <USB_ROLE_DEVICE>;
					cable-connected-on-boot = <USB_ROLE_DEVICE>;
 				};
#endif
			};
			usb2-1 {
				mode = "host";
                                vbus-supply = <&p3509_vdd_av10_hub>;
				status = "disabled";
			};
			usb2-3 {
				mode = "peripheral";
				status = "okay";
                                vbus-supply = <&p3509_vdd_5v_sys>;
#if TEGRA_XUSB_DT_VERSION >= DT_VERSION_3
				usb-role-switch;
				connector {
					compatible = "usb-c-connector";
 					label = "USB-C";
 					data-role = "device";
 				};
#endif
			};
			usb2-4 {
				mode = "host";
				vbus-supply = <&p3509_vdd_5v_sys>;
				status = "okay";
			};
			usb3-0 {
				status = "disabled";
				nvidia,usb2-companion = <1>;
			};
			usb3-1 {
				nvidia,usb2-companion = <4>;
				status = "okay";
			};
			usb3-2 {
				nvidia,usb2-companion = <3>;
				status = "okay";
			};
		};
	};

	tegra_xudc: xudc@3550000 {
		status = "okay";
		phys = <&{/xusb_padctl@3520000/pads/usb2/lanes/usb2-3}>,
			<&{/xusb_padctl@3520000/pads/usb3/lanes/usb3-2}>;
		phy-names = "usb2-3", "usb3-2";
		nvidia,xusb-padctl = <&xusb_padctl>;
	};

WayneWWW · April 24, 2023, 11:50am

Are you able to tell if your dtb change is taking effect? or you don’t know how to check?

alive · April 24, 2023, 11:54am

I use a type-c cable to connect to the pc, and I can’t see the relevant nodes through the lsusb command, and I connect the keyboard to the interface, and it still works.

WayneWWW · April 24, 2023, 11:55am

No, I mean are you able to tell if your dtb is really updated to you devcie.

請問這句有看不懂的地方嗎

alive · April 24, 2023, 11:57am

I checked it with dtc decompilation, the nodes in the device are indeed updated

WayneWWW · April 24, 2023, 11:57am

Could you share your dmesg?

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How to set usb3.0 as device mode in orin nx

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