AW: Fw: [Bugme-new] [Bug 7808] New: Xilinx ML403 does not boot

-----Ursprüngliche Nachricht-----
Von: Bernd Sowislo [mailto:BSowislo@gmx.de]
Gesendet: Donnerstag, 18. Januar 2007 17:21
An: Grant Likely
Betreff: AW: Fw: [Bugme-new] [Bug 7808] New: Xilinx ML403 does not boot

Hi glikely,

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-----Ursprüngliche Nachricht-----
Von: glikely@gmail.com [mailto:glikely@gmail.com]Im Auftrag von Grant
Likely
Gesendet: Donnerstag, 18. Januar 2007 07:28
An: Bernd Sowislo; linuxppc-embedded list
Betreff: Re: Fw: [Bugme-new] [Bug 7808] New: Xilinx ML403 does not boot

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On 1/17/07, Bernd Sowislo [off-list ref] wrote:
Hi,
I have seen your name in the header of
the files for the temac implementation
of the ml403 board.
Meanwhile I know what is the reason
for the hangup of my kernel at boot time
when I insert the patches for the temac
into the xilinx_ml403.c code (two places)

 1.) increment ther number of devices scanned at early boot
 2.) insert the temac routines in ml403_setup_arch()

the systems stops execution.

Do you get any log output at all?  Post it here if you do.

loaded at:     00400000 0063913C
board data at: 00637120 00637138
relocated to:  00404060 00404078
zimage at:     00404E31 004D2397
initrd at:     004D3000 00636284
avail ram:     0063A000 04000000

Linux/PPC load: console=ttyS0,9600 ramdisk_size=8192 root=/dev/ram
Uncompressing Linux...done.
Now booting the kernel

that's all

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First I thought it was my fault because I use temac 2.0
with DMA 3.0 and your driver obviously uses DMA 2.0 and temac 1.0

It's not my driver; I've haven't got the temac driver working on my
board yet.  But there are folks on this list who can help you out.

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then I changed the code (adapter.c) for use of DMA 3.0 and temac 2.0
as described in the xilinx example for DMA test but
even if I use fifo 2.0 mode I have this hangup.

Do you have a driver patch for temac 2.0 with DMA 3.0
or are you interested in my try to change the code?

The Xilinx drivers are a bit of a disaster at the moment in that it
takes a lot of work to get them right.  Go ahead and change the code.
Fill it with debug output; whatever you need to figure out what's
going on.

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how can I debug the booting kernel.

Best way is with some kind of JTAG debugger.  I personally use a
BDI-2000 from Abatron.  I think others have had good luck with the
Xilinx JTAG pod.

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 my experience in linux is 8 weeks, OVMS 15 years

OVMS?

developed from digital for VAX (32bit, later 64bit for Alpha)

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