Problems with MontaVista Linux on a Memec Virtex-II pro ff672 board

[Tony Lee]

Peter, 

Maybe xilinx can come up with app note on how to debug the kernel 
bring up / hanging issue with chipscope on PLB bus.

That would be the most powerful way to demo how to use the 
Xilinx VP HW platform to debug some tricky kernel issues.
You have a extreme flexible platform for this.  We just need a
xilinx's guiding hand from time to time.


I can use the same help too for following issues with linux on VP 20.  :-)  

   * I have trouble finding where 700+ msec cpu time went in my
currect system - kernel, ISR, other user tasks.

   * Sometime on power on, the linux would lockup before everything is ready.


-Tony


On 3/17/05, Peter Ryser <Peter.Ryser at xilinx.com> wrote:
> Also try to boot the first Linux kernel (the one without the Flash
> support) on the EDK design with Flash support. It will help narrow down
> the problem to the HW or the SW.
> 
> - Peter
> 
> S. van Beek wrote:
> 
> >>How did you add the Flash (EMC) peripheral? Did you use the Base System
> >>Builder to generate your hardware?
> >>
> >>
> >
> >Yes, we started a new project using the base system builder with the same
> >options as the previous (working) project and flash, so the address range
> >should be ok. I'll check tomorrow, right now its time to go home ;)
> >
> >Regards,
> >Sander
> >
> >----- Original Message -----
> >From: "Peter Ryser" <Peter.Ryser at xilinx.com>
> >To: "S. van Beek" <nlv11891 at prle>
> >Cc: <Linuxppc-embedded at ozlabs.org>
> >Sent: Thursday 17 March 2005 16:37
> >Subject: Re: Problems with MontaVista Linux on a Memec Virtex-II pro ff672
> >board
> >
> >
> >
> >
> >>How did you add the Flash (EMC) peripheral? Did you use the Base System
> >>Builder to generate your hardware?
> >>
> >>If you configure the hardware manually and use the OPB EMC make sure
> >>that you add the address range to the PLB2OPB bridge.
> >>
> >>- Peter
> >>
> >>
> >>S. van Beek wrote:
> >>
> >>
> >>
> >>>Hello there,
> >>>
> >>>This is our first post on this list, hi all!
> >>>We're two Dutch students working with a Virtex-II pro ff672 board from
> >>>Memec with the Communications 2 module. We've compiled a simple kernel
> >>>wich comes with MontaVista Linux 3.1 (2.4.20) with ethernet and a
> >>>serial port. It mounts its root filesystem over NFS and everything
> >>>seems to work nicely. The next step we wanted to make was
> >>>adding support for the Flash on the com board. We added the IP to the
> >>>hardware and loaded the new bitstream in the FPGA. Next thing, we
> >>>enabled support for MTD devices in the kernel. After that, the kernel
> >>>did not seem to boot anymore. It stopped at the message 'Now booting
> >>>the kernel'. So we read some documentation about debugging. We
> >>>recompiled this kernel with the -g -ggdb options and removed the -O
> >>>(optimalization) flag. Then we did not even see the ppc boot loader
> >>>messages anymore when trying to boot. So we tried to compile the first
> >>>kernel (with only serial and ethernet support) -wich worked fine
> >>>before- with debugging and it gave us the same result.. no output at
> >>>
> >>>
> >all.
> >
> >
> >>>Can anyone give us some hints on what we can try more to find out what
> >>>is going wrong?
> >>>
> >>>Regards,
> >>>Sander van Beek
> >>>Daniel van Os
> >>>
> >>>------------------------------------------------------------------------
> >>>
> >>>_______________________________________________
> >>>Linuxppc-embedded mailing list
> >>>Linuxppc-embedded at ozlabs.org
> >>>https://ozlabs.org/mailman/listinfo/linuxppc-embedded
> >>>
> >>>
> >>>
> >>
> >>
> >>
> >
> >
> >
> >
> >
> >
> 
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> 


-- 
-Tony
Having fun with FPGA HW + ppc + Linux