where does kernel config MPC860 memory controller BRx register?

Hi,
I want to use CS3 of MPC860 for some devices,
so I need config BR3 register, I don't know where
to config it, I have not find BR0's config code.
Where can I find BR0's config code? If I find that,
I think I can place my code there.

Sorry, I'm new to linux kernel, anybody can help me?
Thanks in advance.

Luo Yanjun.
09/29/2002.


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