LS1046ARDB usb peripherial mode works at usb2.0 mode ?

[chhsu0229]

I have a LS1046ARDB EVK and the kernel version is 4.19.68.

I tried to work USB 3.0 Type-A as peripheral mode to simulate as USB device to connect to PC

The device tree is set as below:

usb0: usb3@2f00000 {
compatible = "snps,dwc3";
reg = <0x0 0x2f00000 0x0 0x10000>;
interrupts = <0 60 0x4>;
dr_mode = "peripheral";
snps,quirk-frame-length-adjustment = <0x20>;
snps,dis_rxdet_inp3_quirk;
maximum-speed = "super-speed";

};

However, I find it work at USB2.0 high-speed (Port 1: Dev 2, If 0, Class=Mass Storage, Driver=usb-storage, 480M) instead of super-speed even I set the device tree as above.

I am sure of the host port and USB cable are support USB-3.0 super-speed (5Gpbs).

Does it support usb super-speed when usb as peripheral mode ?

[Pavel]

Compare your setting and the setting from the Section 7.2.16.1 from LSDK 1909 User Guide:

https://www.nxp.com/docs/en/user-guide/LSDKUG_Rev19.09.pdf.

Find the ".Device mode (Gadget driver)" in this section.

Is there "maximum-speed = “super-speed”;" setting in your .dtb file.

Have a great day,
Pavel Chubakov

[chhsu0229]

Thank you for helping

[Pavel]

Test your connection using a USB 3 hub between the LS1043ARDB and your USB host.

Have a great day,
Pavel Chubakov

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[chhsu0229]

Hello Pavel,

Thank you for answering my question.

I connect a USB 3 hub between the USB 1 (setting as peripheral mode) on LS1046ARDB and my USB Host (computer and LS1046ARDB).

I get USB message using command lsusb -t

message:

Port 1: Dev 10, If 0, Class=Mass Storage, Driver=usb-storage, 480M

Unfortunately, the speed doesn't support USB 3.0 ( 5Gpbs)