Marvell>> bubt                    
Burning U-BOOT image "flash-image.bin" from "tftp" to "spi"
Using mvpp2-0 device
TFTP from server 10.0.0.179; our IP address is 10.0.0.201
Filename 'flash-image.bin'.                                                          
Load address: 0x5000000                                                              
Loading: *                                                                           
ARP Retry count exceeded; starting again                                             
Error: Failed to read file flash-image.bin from tftp                                 
exit not allowed from main input shell.