[U-Boot-Users] Can the CPU load from flash without configuring it first?

[Steven Scholz]

Peter Asemann wrote:

> Well, I think it *must* be that way, but to be sure I ask this probably 
> question, though:
> 
> If a MPC875 starts, it will try to boot from the device selected by 
> chip-select 0 (CS0), unless otherwise stated in the hard reset 
> configuration word.
> It will then try to access a flash/eprom/something device via the "GPCM" 
> memory controller.
> In order for this to work, the GPCM of the CPU must be possible to 
> access a flash/eprom without prior configuration when booting.

How else could it boot otherwise? ;-)

Have a look at the power up default values of the GPCM config registers.
You will see that their (most probably) set to meet the requirements for 
standard flash devices...

--
Steven