[U-Boot] Is CCSRBAR relocation broken on P2020?

[Ira W. Snyder <iws@ovro.caltech.edu>]

Hello Timur, Kumar, U-Boot List,

I'm working on porting U-Boot to the Freescale P2020 COM-Express board.
See the ML post from 2011-09-27 titled "[PATCH 0/2] mpc85xx: support for
Freescale COM Express P2020".

When it was posted, the port was working on the top of tree U-Boot. This
included relocation of the CCSRBAR from the power on location of
0xff700000 to 0xffe00000.

Today I updated U-Boot to top of tree to address the comments in the
initial mailing list posting. Upon attempting to boot the board, I get
no console output. I have traced this to commit 6ca88b0958
("powerpc/85xx: relocate CCSR before creating the initial RAM area").

Indeed, making sure that the code does not run by adding the following
to my board config file causes U-Boot to start correctly. Though the
CCSRBAR is not relocated, as expected.

#define CONFIG_SYS_CCSR_DO_NOT_RELOCATE

As an alternative, reverting the commit causes my board to work again.
The CCSRBAR is relocated correctly.

The P2020DS board is very similar to the board I am using. It performs
the same relocation of the CCSRBAR that I want to use as well.  Does
anyone have a P2020DS that they can test with the current top of tree
U-Boot? Does it boot? Can you send the output of "md ffe00000 1"?

Thanks,
Ira