[U-Boot-Users] can i load u-boot into RAM and jump to it as a test?

[Robert P. J. Day]

   (i posted something similar to this on the SF forum before i 
realized there was a real mailing list.  oops.)

   before i commit myself to reflashing with u-boot, i'd like to know 
if it's possible to just load it into RAM and use the current 
bootloader to jump to it, just to see the menu come up, nothing more.

   working with an 8xx board, 850DE-based, and as a test, i did a 
configure with RPXlite_config (even though, technically, it's not 
exactly an RPXlite but close).  generated u-boot.bin and used embedded 
planet's planet core (PC) bootloader to download it into RAM.  at this 
point, am i allowed to just use PC to

> g <download address>   ??

   we could do that with PC -- compile a new version, download it to 
RAM and jump to it, just to see that it seemed to function at the 
basic level.

   thoughts?  i've tried it, and every time i use PC to transfer 
control, i get nothing -- immediate hang.  maybe a serial comms 
problem?  who knows?

rday