Hi Expert,
I have a customer board. usb2 is set as host mode.
But when pulg-in usb disk no Bus voltage output, and the AM571X_USB2_DRVVBUS is also low. It seems that the port doesn't enter the host mode.
execute script chkusb.sh, output is as following:
chkusb.sh Version 0.2.7
Linux buildroot 4.14.79 #7 SMP PREEMPT Tue Jun 30 17:33:46 CST 2020 armv7l GNU/Linux
USB is initialized
usb@48890000: peripheral, okay
usb@488d0000: host, okay
The gadget driver is built-in
Gadget Kernel Config: g_zero is enabled
Gadget Kernel Config: g_audio is enabled
Gadget Kernel Config: g_ether is enabled
Gadget Kernel Config: g_ncm is enabled
Gadget Kernel Config: g_mass_storage is enabled
Gadget Kernel Config: g_serial is enabled
Gadget Kernel Config: g_printer is enabled
gadget driver loaded: (none)
Could I check anything to identify this issue?
Thanks
Daniel