Re: [Ipodlinux-devel] new ipod, etc

[Bernard L. <le...@bo...>]

On Tue, 2003-11-04 at 20:46, PALFFY Daniel wrote:
> Hi!
> 
> > Is it possible to reduce the size of the first partition and make a hda3
> > on the end of the firmware partition? I'd hate to mess with umsdos, I'd
> > like to make an ext[23] root there...
> 
> Ok, tried this and it works fine. The first cylinder (~8MB) is enough for
> both the main firmware or the linux kernel and the second flash-update
> image. I've made hda4 from the 2nd to the 5th cylinder on the HDD,
> and formatted it using ext3. This setup seems to work fine with both the
> apple firmware and linux. So I can now boot to userspace!

I guess as long as you make it hda4 it can find everything ok.  I wonder
how that would go with the MAC iPods...  That would certainly make the
setup a lot easier.  I'd imagine the updater program might get a bit
confused (although maybe not...).

If you have a few minutes to put together a short howto perhaps I could
put it up on the website :)

> 
> I've checked, the keyboard and the wheel work fine, contrast setting too.
> Playing an mp3 with the uClinux mp3play didn't produce any sound, but
> neither error messages... Do I have to unmute the mixer first?

The driver should be doing everything right but I guess there may be
some slightly different initialisation required there.  Especially if
its a different D2A chip in the g3 hardware.

> Now I'll have to fix firewire, because it's nice to be able to type
> llrlrlrlrlrrr on the wheel, but not much useful for debugging :)

True enough.  I guess the easiest should be to take a look diagnostic
firmware to see how it is different between the two.  I'll see if I can
take a look at that for you.

> Are all these 0xcf00xxxx addresses and their functions documented
> somewhere? Or are they some little known black magic from the original
> firmware? The main difference between the g1 and g3 ipods seems to be
> somewhere around these GPIO pins...

Not really documented, black magic is about right... you can get some of
it out of the source and I have a few other notes but its all pretty
disorganised.

cheers,
bern.