[U-Boot-Users] Invoke a U-boot session from a U-boot session...

[liberty eran-RM27540]

I want to invoke Uboot from uboot!
I have a stable uboot on flash.
when it is up I would like to do something like:

ftp 100000 experimental_uboot.bin
go 100000
.... 
something go terribly wrong
....
[power off] [ power on]
old stable uboot is up.
 
Any help will be appreciated
 
    10x, Liberty
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