Вывод после остановленной загрузки и команды usb start:
CPU: Freescale i.MX6ULL rev1.1 792 MHz (running at 396 MHz)
CPU: Industrial temperature grade (-40C to 105C) at 45C
Reset cause: POR
Model: Wiren Board rev. 6.1 (i.MX6UL)
Board: Wiren Board MX6UL
DRAM: 1 GiB
MMC: FSL_SDHC: 0
Using default environment
In: serial
Out: serial
Err: serial
Net: eth0: ethernet@02188000
Hit any key to stop autoboot: 0
=> usb start
starting USB…
USB0: USB EHCI 1.00
USB1: USB EHCI 1.00
scanning bus 0 for devices… 2 USB Device(s) found
scanning bus 1 for devices… EHCI timed out on TD - token=0x80008c80
unable to get device descriptor (error=-1)
1 USB Device(s) found
scanning usb for storage devices… 1 Storage Device(s) found