When AM335x connects USB Ethernet card with a USB cable, I encounter a USB communication stability problem, the Ethernet card is often lost randomly during operation. The AM335x USB port worked in high-speed mode and the kernel was 4.19. Since this card worked ok with the lagacy protduct whose USB worked in full-speed mode, I want to ask how to specify the USB-2 interface of AM335x to work in full speed mode for test?