Re: TLB and CSSBAR problems with MPC8540 and BDI2000

     Yes, but that isn't the problem.

quoted

        Could anyone familiar with that workaround listed below verify
that
this could be causing the CPU to freeze/crash?

     I've been there and done it.  The CCSRBAR can't be changing while you
     are using the BDI2000 for debug.  The debug registers the BDI2000 is
     trying to access are in this space.  If you move the space without the
     BDI2000 knowing (i.e. in your code), the BDI2000 doesn't seem to be
     able to track those changes and continues to try and access the
     debug registers in the last known space.


     So, what you have to do is (simply :-) ensure the CCSRBAR isn't
     changing when you are debugging the software.

That leaves me with one question. When I don't do anything in the init
section of the bdi2000 except one command which is to remove the L2SRAM
from the initial MMU page and then I proceed with booting the board
boots fine. If I halt the board examine the CCSRBAR it has moved from
the default location.

I must be missing something, any ideas?

Thanks

--
Matthew S. McClintock [off-list ref]


** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/