Beagleboard stuff

[John Nicholls]

On Tue, 2011-03-29 at 23:38 +0200, Damjan Marion wrote:
> Hi,

Hi Everyone,

Yohanes Nugroho <yohanes at gmail.com> is working on a FreeBSD Kernel for
the BeagleBoardXM 

To help speed up Kernel development I sent Yohanes a new version of
u-boot that uses the USB device to transfer the Kernel

>> I just had the time to test it, and I can load freebsd kernel.
>
> Fantastic, that will save a bit of time, how many seconds does it take
> to load?

About 2 seconds. It saves a lot from about 150 seconds using serial
port.

If anybody wants a copy of the u-boot binary and the instructions to use
it just email me.

We can't use tftp from u-boot as there is no u-boot support on the
BeafleboardXM for the combo USB Host / Ethernet chip...

Regards,

John

> On Mar 29, 2011, at 5:09 PM, Olivier Houchard wrote:
> 
> > On Tue, Mar 29, 2011 at 12:27:33PM +0100, Mark Murray wrote:
> >> Hi *
> >> 
> > 
> > Hi Mark,
> > 
> >> I'm keen "go embedded". I have a Beagleboard-xM, and I haven't had the
> >> time I'd like to do much with it.
> >> 
> >> A fellow called Ben Gray has done some of the work to get FreeBSD
> >> working on this unit, but used FreeBSD-8 as a base. I've taken his
> >> work and made it compile on current (mostly). He had some hacks
> >> (beagle_brintf, beagle_panic etc) which I've removed, along with some
> >> stuff (that may have broken things) in PMAP.
> >> 
> >> The diffs are in http://people.freebsd.org/~markm/src.beagleboard.diff.
> >> 
> >> Is this of any use? :-)
> >> 
> > 
> > yes it his :) armv6/v7 support has been wanted for a long time now.
> > However, there's been ongoing discussions with Mark Tinguely, raj@ and others
> > about how to handle the MMU differences between <= v5 and >= v6, and I think
> > the consensus was we should create a new pmap_v6.c file, maybe using kobj as
> > is done in the ppc port. Maybe now is a good time to do so :)
> 
> This is very interesting topic to me. I just received few days ago pandaboard, which is somehow successor of beagleboard and it is built on TI OMAP4430 SoC.
> Main difference is that this one is dual core ARM Cortex-A9 so it needs SMP support. I guess that so far there is no SMP in ARM implementation on FreeBSD so I planed to spent some time on it. 
> Is there any work done so far on SMP side? 
> If not is there any wider interest to implement ARM MPCore in FreeBSD?
> Any other thoughts on this topic?
> 
> Thanks,
> 
> Damjan
>  
> 
> 
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