Dear Keith,
in message OF203F9449.99AEB2AF-ON07257037.006EF267-07257037.0071F9E5@mck.us.ray.com you wrote:
I did remember that the u-boot environment was read very early and it sounds like the restricted runtime environment was the reason that storing then environment in compact flash was not implemented.
Right, this is the big problem.
If the problem is RAM, then I can solve that by dedicating some internal RAM in the FPGA for stack and data. Could we also use the PPC405 caches?
It's not just having some memory, but all the other restrictions while running from flash: no writable data segment, not initialized BSS.
Check the code where CFG_ENV_IS_NOWHERE is used; use a static confi- guration for the console baudrate etc. This can get you started...
Best regards,
Wolfgang Denk