ml310 kernel2.6 booting problems

[Ron Sass]

Hello All,

I have a sidewise question related to this thread.  We have
several ML-310 and ML-410 boards.  At some point, we may need
PCI but right now it is not urgent so I am not ready to invest
a lot of time yet either.  I imagine that 2.6 + PCI would be
relatively similiar for both ML-310 and ML-410...

My question is this:  Would it make sense to have a Kernel
configuration something like "VIRTEX_PCI" and a platforms
"XILINX_ML4xx" / "XILINX_ML3xx" ... or create four platforms:

  XILINX_ML300
  XILINX_ML310
  XILINX_ML40x
  XILINX_ML410

I ask now because we are working on some device drivers for
the ML410 that may work on 40x and I wondering if I should
introduce a new ML410 platform option...

Ron

> > Date: Thu, 17 Jan 2008 21:19:04 +0100
> > From: Joachim Meyer
> > Hmmm... I'm not really ready to invest that much time into the PCI for ML=
> -310.
> > -------------------------------------------------------------------------=
> -------
> > http://ozlabs.org/pipermail/linuxppc-embedded/2007-December/029211.html
> >
> > How much work would it be (approximated), and do you think I can success =
> (I'm a novice, like you know)?
> > Would you help me (Tell me where to start & what to do)?
> 
> Hi Joachim,
> 
> I was also interested in getting the PCI to run on the ML-310.  I did
> spend an evening trying to integrate a patch sent over by Stephen
> Neuendorffer from Xilinx.  I managed to get everything to compile
> (basically I fixed a few missing macros and had to search a bit to
> ensure that the memory mapping was correctly ported).  Unfortunately,
> when I tried the new kernel, I think that I must have messed something
> up with the interrupt mappings (I am a newbie to PCI) and I had to
> remove some interrupt mapping from Stephen's patch.
> 
> In any case, my ML-310 was booting the Linux kernel, but something was
> not right and I did not get anymore printouts from the UART Lite.
> Since I don't have the JTAG cable, I was stuck at this point with
> little means to debug the system.  One day I'll spoil myself with one
> of those platform JTAG USB cables...
> 
> I used Z-modem to transfer files to/from my workstation to my CF card
> on the ML-310 and this was an acceptable compromise.
> 
> I'd still be interested in having the PCI bus working on the ML-310,
> but now that I got my BEE2 booting Linux 2.6, its not such a big
> priority for me.  Let me know if you have some success in that
> direction.
> 
> Regards,
> 
> Jean-Samuel
> -- =
> 
> Integrated Microsystems Laboratory
> McGill University, Montr=E9al, QC, CANADA
> Web Page: http://chaos.ece.mcgill.ca
> _______________________________________________
> Linuxppc-embedded mailing list
> Linuxppc-embedded at ozlabs.org
> https://ozlabs.org/mailman/listinfo/linuxppc-embedded