usb 3.0 compliance mode in iMX8MP

[hrlawrence]

Hi

I want to enable and usb 3.0 compliance mode in iMX8MP.   I am using the USB 3.1 HOST Fixture(intel) for the compliance test.
Please share the procedure to enable the compliance mode in the Linux kernel 5.15 and register settings if any to run the test. 

Thanks and Regards

Lawrence

[joanxie]

pls refer to the document as below:

"https://www.nxp.com/docs/en/application-note/AN12409.pdf"

[hrlawrence]

Hi Joanxie,

Thanks for the update.

I have followed the document specific to host and did the changes and validated it. I have observed that the CP0 Validation gets failed. Any thoughts?

FYI, In device tree, Both USB0 and USB1 configured as a host. I have set the compliance mode using "echo compliance > /sys/kernel/debug/usb/xhci/xhci-hcd.0.auto/ports/port01/portsc" . 

In the document there is a mention about software patches "How to do USB Compliance Test for 3.10.y kernel” . I am using 5.15 Linux the kernel version, whether any update available for kernel version 5.15?

Thanks

Lawrence

[joanxie]

pls share your detailed test steps and detailed error log information