Using USB in U-Boot

TQMa6x[MBa6x] U-Boot > usb start
TQMa6x[MBa6x] U-Boot > usb storage
TQMa6x[MBa6x] U-Boot > usb dev
TQMa6x[MBa6x] U-Boot > usb part
TQMa6x[MBa6x] U-Boot > fatls usb 0:1
TQMa6x[MBa6x] U-Boot > ext2ls usb 0:1
root@MBa6x:~ dmesg | grep -i usb

If a USB device is inserted after booting, the kernel will automatically provide information about the recently connected device. Thus one can easily read which device is to be used for mounting. The first partition of the device is sda1.

root@MBa6x:~ blkid
root@MBa6x:~ mount /dev/sda1 /mnt/

Disclaimer
TQ-Systems GmbH provides the Board Support Packages (BSP) free of charge. The software included in the shipment has been configured individually for the starter kits. The software is only intended to evaluate the module. The use of the Board Support Packages (BSP) is only allowed within the scope of functionality described by TQ-Systems GmbH. TQ-Systems GmbH does not accept any liability for all further changes of the Board Support Package and for any damage resulting from its use.