ml310 kernel2.6 booting problems

[Ron Sass]

Oops.  I should have looked at git.xilinx.com.  I've been using
secretlab's for a while and I saw xilinx site come up but never
took the time to investigate.  Even if it not mainline suitable
code and 2.6.10-era, I would be interested.  I'll explore in my
free time over the next couple of weeks and see what I can figure
out.

Thanks for the speedy response!

Ron

> 
> Ron,
> 
> It might be better to start with the kernel from git.xilinx.com, which
> already has an ML41x option.  The current version of EDK will also
> generate support for ML410 with the PCI driver, if you are still using a
> 2.6.10-era kernel. =20
> 
> I've refrained putting the PCI stuff on git.xilinx.com, because any
> non-trivial usage of it that I've tried has generated warnings.  On top
> of that, the code has some interrupt values hardcoded in the ALI
> southbridge code.  Since there is no way to have this code pushed into
> mainline, I'm not terribly interested in encouraging any work on it,
> either.  Perhaps since there is so much interest in this code, someone
> would like to get it working in ARCH=3Dpowerpc?  I'm happy to provide =
> some
> handholding to get someone started.
> 
> Steve
> 
> > -----Original Message-----
> > From: linuxppc-embedded-bounces+stephen=3Dneuendorffer.name at ozlabs.org
> [mailto:linuxppc-embedded-
> > bounces+stephen=3Dneuendorffer.name at ozlabs.org] On Behalf Of Ron Sass
> > Sent: Friday, January 18, 2008 4:11 PM
> > To: Jean-Samuel Chenard
> > Cc: linuxppc-embedded at ozlabs.org
> > Subject: Re: ml310 kernel2.6 booting problems
> >=20
> >=20
> > Hello All,
> >=20
> > 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...
> >=20
> > 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:
> >=20
> >   XILINX_ML300
> >   XILINX_ML310
> >   XILINX_ML40x
> >   XILINX_ML410
> >=20
> > 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...
> >=20
> > Ron
> >=20
> > > > 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=3D
> > > -310.
> > > >
> ------------------------------------------------------------------------
> -=3D
> > > -------
> > > >
> http://ozlabs.org/pipermail/linuxppc-embedded/2007-December/029211.html
> > > >
> > > > How much work would it be (approximated), and do you think I can
> success =3D
> > > (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
> > > -- =3D
> > >
> > > Integrated Microsystems Laboratory
> > > McGill University, Montr=3DE9al, QC, CANADA
> > > Web Page: http://chaos.ece.mcgill.ca
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