And wouldnt setup tftp: but finaly did it.
As suggested by @dtometzki i could have compile uboot by myself but wasn’t confident
Then i decided to setup tftp
→ macos (sierra) it is already installed in cli
→ for linux, seems to be one apt install
→ for both you place files in right folder and it should just works
But definitly àll commands in VF2 side were executed through UART.