RTEMS on PowerPC 440GP ?

[Ivan Galkin]

Hi,

We are interested in porting our RTEMS development to a new rad hard 
platform by Broad Reach Engineering, based on the PowerPC 440GP chip.
http://www.broad-reach.net/cpuBoards.html
As far as I can see, there is no BSP available for the 440 chip.
Any success stories of porting RTEMS to PPC 440?
How much work it is, realistically, to take the closest available BSP 
and rework it for this new platform?
Many thanks,

Ivan