[U-Boot] P2020 L2 cache as SRAM

Fabian Cenedese
2011-01-17T08:07:54Z

Hi

We're trying to configure the PPC P2020 cpu to use the L2 cache
as SRAM so we can load the U-Boot code in there. However we
stumble into problems. Sometimes the cpu goes on trap when
trying to access this area. Sometimes there's no trap but we
seem to access a different area. That's probably a problem with
setting up a TLB/LAW.

Has anybody already done this and could share some code with
us?

I've seen that there's a mpc85xx branch with quite some work
going on. Where should we base our work on? Should we use
the master or is it better to use this branch? I'm used to svn,
not git, so there may be other options I don't know about yet.

Thanks

bye Fabi