root@plnx_aarch64:/mnt# ls
BOOT.BIN    BOOT_1.BIN  BOOT_2.bin  image.ub
root@plnx_aarch64:/mnt#
root@plnx_aarch64:/mnt# [   55.779924] usb 1-1: new high-speed USB device number 2 using xhci-hcd
[   55.924448] usb 1-1: New USB device found, idVendor=03fd, idProduct=0050
[   55.931065] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[   55.938185] usb 1-1: Product: Xilinx DFU Downloader
[   55.943041] usb 1-1: Manufacturer: XILINX
[   55.947035] usb 1-1: SerialNumber: 2A49876D9CC1AA4

root@plnx_aarch64:/mnt#
root@plnx_aarch64:/mnt# dfu-util -D BOOT_1.BIN
dfu-util 0.9

Copyright 2005-2009 Weston Schmidt, Harald Welte and OpenMoko Inc.
Copyright 2010-2016 Tormod Volden and Stefan Schmidt
This program is Free Software and has ABSOLUTELY NO WARRANTY
Please report bugs to http://sourceforge.net/p/dfu-util/tickets/

dfu-util: Invalid DFU suffix signature
dfu-util: A valid DFU suffix will be required in a future dfu-util release!!!
Opening DFU capable USB device...
ID 03fd:0050
Run-time device DFU version 0101
Claiming USB DFU Interface...
Setting Alternate Setting #0 ...
Determining device status: state = dfuIDLE, status = 0
dfuIDLE, continuing
DFU mode device DFU version 0101
Device returned transfer size 1024
Copying data from PC to DFU device
Download        [=========================] 100%       227368 bytes
Dow[   86.281802] usb 1-1: USB disconnect, device number 2
nload done.
state(2) = dfuIDLE, status(0) = No error condition is present
Done!
root@plnx_aarch64:/mnt# [   86.591922] usb 1-1: new high-speed USB device number 3 using xhci-hcd
[   91.747934] usb 1-1: device descriptor read/64, error -110
[   92.000259] usb 1-1: New USB device found, idVendor=03fd, idProduct=0050
[   92.006882] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[   92.013999] usb 1-1: Product: DFU 2.0 emulation v 1.1
[   92.019030] usb 1-1: Manufacturer: XILINX INC
[   92.023372] usb 1-1: SerialNumber: 2A49876D9CC1AA4

root@plnx_aarch64:/mnt# dfu-util -D BOOT_2.bin
dfu-util 0.9

Copyright 2005-2009 Weston Schmidt, Harald Welte and OpenMoko Inc.
Copyright 2010-2016 Tormod Volden and Stefan Schmidt
This program is Free Software and has ABSOLUTELY NO WARRANTY
Please report bugs to http://sourceforge.net/p/dfu-util/tickets/

dfu-util: Invalid DFU suffix signature
dfu-util: A valid DFU suffix will be required in a future dfu-util release!!!
Opening DFU capable USB device...
ID 03fd:0050
Run-time device DFU version 0110
Claiming USB DFU Interface...
Setting Alternate Setting #1 ...
Determining device status: state = dfuDNLOAD-SYNC, status = 0
DFU mode device DFU version 0110
Device returned transfer size 1024
Copying data from PC to DFU device
Download        [=========[  106.465833] usb 1-1: USB disconnect, device number 3
Download        [=========================] 100%       752208 bytes
Download done.
dfu-util: unable to read DFU status after completion
root@plnx_aarch64:/mnt#