AM5728: USB compliance test

Hi,

My customer is designing the custom board with AM5728 and wants to do USB compliance testing.
In their system, USB1 is USB2.0 HS device, USB2 is USB2.0 Host.
SW is based on SDK Linux, v03.03.00.04.

Customer refers to software developer’s guide:
http://software-dl.ti.com/processor-sdk-linux/esd/docs/latest/linux/Foundational_Components_Kernel_Drivers.html#dwc3

Q1) The “non-standard DebugFS interface” can be used to enter USB test mode, correct?

Q2) The document shows an example using AM437x. The same steps work for AM572x as well?

Q3) In the AM437x example, directories 48390000.usb is USB1 and 483d0000.usb is USB2.
What are directories for AM572x?

Thanks and regards,
Koichiro Tashiro