Debugging start_here: on IBM405GP

ChangYl Lee bluecafe at
Thu Jan 31 00:44:24 EST 2002

Hi all.
I'm using IBM405GP(not walnut, custom board) and linux-2.4.18-pre7 from BK Tree.
And I made bootloader myself and use it.

Attempting to debug, I can't see my debug character at "start_here:" (arch/ppc/kernel/head_4xx.S) and It seems to hang.
I have ported linux-2.4.2_hhl20 to my board and it now runs well.
But I don't know why new version of kernel doesn't work in my board.
Is anybody knows the reason?
Any help is greatly appreciated.

1) In my humble opinion, there are no board specific dependency before "start_here:".
So I think that any 405GP should runs well at "start_here:". Am I wrong?

2) is any dependency to processor revision? revision of my processor is E.

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