From owner-freebsd-arm@FreeBSD.ORG Wed Mar 30 03:00:46 2011 Return-Path: Delivered-To: freebsd-arm@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 5DFC81065675; Wed, 30 Mar 2011 03:00:46 +0000 (UTC) (envelope-from kevlo@kevlo.org) Received: from ns.kevlo.org (kevlo.org [220.128.136.52]) by mx1.freebsd.org (Postfix) with ESMTP id 318908FC15; Wed, 30 Mar 2011 03:00:44 +0000 (UTC) Received: from [127.0.0.1] (kevlo@kevlo.org [220.128.136.52]) by ns.kevlo.org (8.14.3/8.14.3) with ESMTP id p2U2PYwZ025976; Wed, 30 Mar 2011 10:25:35 +0800 (CST) From: Kevin Lo To: Damjan Marion In-Reply-To: <7519F558-CEA3-41A9-8AA6-5A3234C4F1A8@gmail.com> References: <20110329150903.GA4069@ci0.org> <7519F558-CEA3-41A9-8AA6-5A3234C4F1A8@gmail.com> Content-Type: text/plain; charset="UTF-8" Date: Wed, 30 Mar 2011 10:25:34 +0800 Message-ID: <1301451934.2217.19.camel@nsl> Mime-Version: 1.0 X-Mailer: Evolution 2.30.3 Content-Transfer-Encoding: 7bit Cc: freebsd-arm@freebsd.org Subject: Re: Beagleboard stuff X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Porting FreeBSD to the StrongARM Processor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 30 Mar 2011 03:00:46 -0000 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