We are working on our custom board that uses an iMX7D and are having issues with USB device mode in U-Boot. We are trying to mount the on board storage device (eMMC) to the USB. On the SABRE board, the storage device enumerates on a laptop but not with our custom board.
This is what we do:
=> usb start
USB0: Port not available.
USB1: USB EHCI 1.00
scanning bus 1 for devices... 1 USB Device(s) found
scanning usb for storage devices... 0 Storage Device(s) found
=> ums 0 mmc 0
UMS: LUN 0, dev 0, hwpart 0, sector 0x0, count 0xece000
At this point the progress indicator keeps spinning but nothing enumerates and then we cancel with CTRL-C.
Thanks in advance