Re: Upstream linux-omap kernel on Nokia N900?

[Roger Quadros <roger.quadros@nokia.com>]

Balbi Felipe (Nokia-D/Helsinki) wrote:
> Hi,
> 
> On Mon, Apr 19, 2010 at 01:49:15PM +0200, ext Arnaud Ebalard wrote:
>> Nokia N900 is shipped to users with a 2.6.28 omap kernel. Many patches
>> for the hardware and various features have been pushed upstream by Nokia
>> developers and possibly others. Those are now available in current l-o
>> tree.
>>
>> Nonetheless, many drivers and various features are still missing
>> upstream. Simply put, one cannot expect to run a current l-o kernel on
>> the device (and expect to get a GUI and/or make call with the device).
> 
> tell me about it :-p
> 
> Thing is that it doesn't really depend only on Nokia to get those parts 
> done. Well, we can get the kernel part done by just cleaning up and 
> porting the 2.6.28 drivers to current mainline, but in case of e.g. SGX 
> we still miss the xorg driver and I don't think that'll be released any 
> time soon.
> 
> Another problem is that the bootloader believes it can pass all the 
> obsoleted OMAP TAGs to kernel and the 2.6.28 kernel depends on those, 
> maybe that can be worked around. I don't know whether kernel simply 
> drops invalid TAGs or not...

Yes kernel simply drops unrecognized TAGs and just prints a warning message.

> 
> Good work anyways... At least it's now documented ;-)
> 
> PS:
> 
> BTW, CBUS isn't really necessary for n900 and I have almost 40 patches 
> cleaning that up pending in this mailing list :-p
>