Date: Wed, 30 Mar 2011 10:25:34 +0800 From: Kevin Lo <kevlo@kevlo.org> To: Damjan Marion <damjan.marion@gmail.com> Cc: freebsd-arm@freebsd.org Subject: Re: Beagleboard stuff Message-ID: <1301451934.2217.19.camel@nsl> In-Reply-To: <7519F558-CEA3-41A9-8AA6-5A3234C4F1A8@gmail.com> References: <E1Q4X5B-000J64-DJ@groundzero.grondar.org> <20110329150903.GA4069@ci0.org> <7519F558-CEA3-41A9-8AA6-5A3234C4F1A8@gmail.com>
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Damjan Marion wrote: > Hi, > > 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. Mine has arrived four months ago, I haven't had time to work on it. > 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? You likely can snag a bunch of that support from NetBSD, since they have ARM11 MPCore support: http://mail-index.netbsd.org/source-changes/2011/03/10/msg019790.html Is this enough to get you going? > Thanks, > > Damjan Kevin
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