Thread (4 messages) flat view 4 messages, 3 authors, 2007-03-20

Re: Kernel locked at "Now booting the kernel", Xilinx ML310 PPC405GP

From: Grant Likely <hidden>
Date: 2007-03-09 21:44:26

On 3/9/07, Kunal Arya [off-list ref] wrote:
I'm currently working on getting Linux running on the Xilinx ML310.
I've followed all of the directions so far, but have run into a boot
problem.

I used the kernel sources from Montavista's RSYNC servers, using this command:
rsync -avz source.mvista.com::linuxppc-2.4 .

This appears to be kernel version 2.4.30-pre1, according to version.h
Oh, ick.  you might want to try 2.6.  2.4 is so crusty (but I do have
2.4 working on my virtex boards, so it's not unusable).  :-)

What's probably happening, is some code is trying to access device
registers after the MMU is turned on, but before ioremap is called on
the registers.  I've had this situation before.  I usually just trace
through the boot path to find out how far it gets before the trap so I
know which device driver is at fault.

If you can access memory, it's also useful to look at the contents of
__log_buf after the crash.  That will tell you approximately how far
boot proceeded.

Cheers,
g.

-- 
Grant Likely, B.Sc. P.Eng.
Secret Lab Technologies Ltd.
grant.likely@secretlab.ca
(403) 399-0195
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