From owner-freebsd-arm@FreeBSD.ORG Thu Jan 29 12:35:46 2015 Return-Path: Delivered-To: freebsd-arm@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id B3DDADFC; Thu, 29 Jan 2015 12:35:46 +0000 (UTC) Received: from raven.bwct.de (raven.bwct.de [85.159.14.73]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "raven.bwct.de", Issuer "BWCT" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 44D6821C; Thu, 29 Jan 2015 12:35:45 +0000 (UTC) Received: from mail.cicely.de ([10.1.1.37]) by raven.bwct.de (8.13.4/8.13.4) with ESMTP id t0TCZ8OA048380 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Thu, 29 Jan 2015 13:35:09 +0100 (CET) (envelope-from ticso@cicely7.cicely.de) Received: from cicely7.cicely.de (cicely7.cicely.de [10.1.1.9]) by mail.cicely.de (8.14.5/8.14.4) with ESMTP id t0TCZ6sH036624 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Thu, 29 Jan 2015 13:35:06 +0100 (CET) (envelope-from ticso@cicely7.cicely.de) Received: from cicely7.cicely.de (localhost [127.0.0.1]) by cicely7.cicely.de (8.14.2/8.14.2) with ESMTP id t0TCZ6hH078644; Thu, 29 Jan 2015 13:35:06 +0100 (CET) (envelope-from ticso@cicely7.cicely.de) Received: (from ticso@localhost) by cicely7.cicely.de (8.14.2/8.14.2/Submit) id t0TCZ50N078643; Thu, 29 Jan 2015 13:35:05 +0100 (CET) (envelope-from ticso) Date: Thu, 29 Jan 2015 13:35:05 +0100 From: Bernd Walter To: Andrew Turner Subject: Re: System-On-Module Message-ID: <20150129123505.GJ73589@cicely7.cicely.de> Reply-To: ticso@cicely.de References: <1422490013.15718.79.camel@freebsd.org> <1422491760.15718.97.camel@freebsd.org> <20150129023314.GH73589@cicely7.cicely.de> <20150129113930.53cfc2ff@bender> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20150129113930.53cfc2ff@bender> X-Operating-System: FreeBSD cicely7.cicely.de 7.0-STABLE i386 User-Agent: Mutt/1.5.11 X-Spam-Status: No, score=-0.2 required=5.0 tests=ALL_TRUSTED=-1, BAYES_00=-1.9, DNS_FROM_AHBL_RHSBL=2.699, T_RP_MATCHES_RCVD=-0.01 autolearn=no version=3.3.0 X-Spam-Checker-Version: SpamAssassin 3.3.0 (2010-01-18) on spamd.cicely.de Cc: Ian Lepore , "freebsd-mobile@freebsd.org" , "freebsd-arm@freebsd.org" , FreeBSD Current , "ticso@cicely.de" X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: "Porting FreeBSD to ARM processors." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 29 Jan 2015 12:35:46 -0000 On Thu, Jan 29, 2015 at 11:39:30AM +0000, Andrew Turner wrote: > On Thu, 29 Jan 2015 18:27:08 +0900 > "Lundberg, Johannes" wrote: > > > What I'm most worried about is the graphics stack.. Some companies > > don't seem so keen on handing out specs. > > The only ARM vendor I know that has released documentation on their 3D > hardware is Broadcom [1]. The only options for this are the Raspberry > Pi or one of the mobile phones with a Broadcom CPU. I neither option to > be applicable for your requirements. On the other hand people still struggle when it comes to CPI on RPi, because it is handled by the GPU. I'm still not so sure about this Broadcom SoC. This is the reason why I like that the RPi Camera header is also used on the Hummingboard and the BanannaPi. The Hummingboard is an iMX6. The BanannaPi unfortunately is an Allwinner and their datasheets are AFAIK chinese only and IIRC also under NDA. The Novena crown funding included iMX6 2D/3D driver development for Linux as a met stretch goal: https://www.crowdsupply.com/kosagi/novena-open-laptop/stretch-goals https://www.crowdsupply.com/kosagi/novena-open-laptop I don't know how much of the results will be useable for us, but at least some people seem to have access to enough documentation. > Andrew > > [1] > http://www.broadcom.com/docs/support/videocore/VideoCoreIV-AG100-R.pdf -- B.Walter http://www.bwct.de Modbus/TCP Ethernet I/O Baugruppen, ARM basierte FreeBSD Rechner uvm.