[oe] [PATHC] ATAG export for the linux kernel

[Hans Henry von Tresckow]

On Dec 10, 2007 1:56 AM, Uli Luckas <u.luckas at road.de> wrote:

> On Friday, 7. December 2007, Hans Henry von Tresckow wrote:
>  > On Dec 7, 2007 3:38 AM, Richard Purdie <rpurdie at rpsys.net> wrote:
>  > > On Fri, 2007-12-07 at 11:06 +0000, Uli Luckas wrote:
>  > > > Hans Henry, thanks for testing. Good to know it worked for you.
> Let's
>  > > > see how we can get this thing pushed upstream.
>  > > >
>  > > > 1) I put this on the OE list as the original code is maintained
> in OE.
>  > >
>  > > And
>  > >
>  > > > that's why I'd like the code to be pushed to the OE repository
> first.
>  > > > I am not really an OE developer though. Is someone willing to do
> the OE
>  > > > integration to give my patch a home?
>  > >
>  > > I'm happy for the userspace side of things to be added in OE. I have
>  > > some reservations about the way the kernel patch is added to the
> zaurus
>  > > code, particularly about the way the kernel commandline is handled
> from
>  > > the broken bootloader and I need to find some time to look at that.
> I'm
>  > > fine with the patch in principle though, I just want it right when
> its
>  > > added (and preferably upstream too, the existing zaurus changes
> will not
>  > > be accepted upstream).
>  > >
>  > > > 2) I need to push the kernel patch via Russell. Mike, I have not
> heard
>  > > your opinion. Will you support this patch?
>  > > >
>  > > > 3) I need to push my userspace work. My work is based on code by
>  > > > Richard though. Richard, please jump in and let us know how you'd
> like
>  > > > to
>  > >
>  > > proceede?
>  > >
>  > > I did try and find the kexec-tools maintainer but got distracted and
>  > > never got back to it. Does anyone know who we need to send this to? I
>  > > will try and get that done this weekend...
>  > >
>  > > > I'd really like to see kexec working on arm without any patches
> soon.
>  > >
>  > > Agreed. I'm sorry I haven't found time to look at this yet, I will
> try
>  > > hard to do so this weekend.
>  > >
>  > > Regards,
>  > >
>  > > Richard
>  > >
>  > >
>  > >
>  > > Richard,
>  >
>  > I updated http://bugs.openembedded.org/show_bug.cgi?id=3397 with a new
>  > patch to filter out the Sharp command line (for poodle at least). Let
> me
>  > know if that approach makes more sense.
>  >
> I think I am missing something here. Didn't you (Hans Henry) report my
> kernel
> patch to work on poodle?
> As I don't have a Sharp, could someone clue me in what problem you guys
> are
> trying to sove here?
>
>  > http://bugs.openembedded.org/show_bug.cgi?id=3430 has the userspace
> kexec
>  > patch.
>  >
>
Uli, the basic problem with Sharp machines is that the bootloader has the
default commandline for the old 2.4.x embeddix/lineo kernels. This
commandline is completely unusable by the 2.6 kernel series. To get mikes
and your patches working I have had to resort to one of two methods, either
of which Richard considers a no-no:
1) set up .boot_params at  0xa0000200 instead of the more standard
0xa0000100
2) patch the kernel to check the command line and reject it if it looks like
the standard Sharp one.

>
> Thanks for forwarding the patch to the right channel.
>
> Regards,
> Uli
>
> --
>
> ------- ROAD ...the handyPC Company - - -  ) ) )
>
> Uli Luckas
> Software Development
>
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>


-- 
Henry von Tresckow (hvontres)