From owner-freebsd-current@freebsd.org Fri Mar 25 18:47:24 2016 Return-Path: Delivered-To: freebsd-current@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 2969DADDEE5 for ; Fri, 25 Mar 2016 18:47:24 +0000 (UTC) (envelope-from wblock@wonkity.com) Received: from wonkity.com (wonkity.com [67.158.26.137]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "wonkity.com", Issuer "wonkity.com" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id DC70E129A for ; Fri, 25 Mar 2016 18:47:23 +0000 (UTC) (envelope-from wblock@wonkity.com) Received: from wonkity.com (localhost [127.0.0.1]) by wonkity.com (8.15.2/8.15.2) with ESMTPS id u2PIl9FM039045 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Fri, 25 Mar 2016 12:47:09 -0600 (MDT) (envelope-from wblock@wonkity.com) Received: from localhost (wblock@localhost) by wonkity.com (8.15.2/8.15.2/Submit) with ESMTP id u2PIl9Ni039042; Fri, 25 Mar 2016 12:47:09 -0600 (MDT) (envelope-from wblock@wonkity.com) Date: Fri, 25 Mar 2016 12:47:09 -0600 (MDT) From: Warren Block To: "Lundberg, Johannes" cc: Lars Engels , =?KOI8-R?B?98zBxMnNydI=?= , FreeBSD Current Subject: Re: question on support processor Intel Atom Z3735F In-Reply-To: Message-ID: References: <1458846365.574939838@f173.i.mail.ru> <20160325110501.GN24170@e-new.0x20.net> User-Agent: Alpine 2.20 (BSF 67 2015-01-07) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.4.3 (wonkity.com [127.0.0.1]); Fri, 25 Mar 2016 12:47:09 -0600 (MDT) X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 25 Mar 2016 18:47:24 -0000 On Fri, 25 Mar 2016, Lundberg, Johannes wrote: > One problem is that most of these devices have only 32 bit UEFI which > FreeBSD does not support (except Intel Compute Stick which has 64 bit UEFI). The MinnowBoard has both 32-bit and 64-bit UEFI. My Turbot came with 64-bit UEFI, and the FreeBSD amd64 UEFI install image works fine with it. This is an Atom E3826 board. > I use special built Grub to boot a 64 bit Arch Linux on this chip, maybe > same approach could be used to boot a 64 bit FreeBSD. However, you probably > won't be able to use the internal eMMC (if your device got it) since the > controller can not initiate mmc memory correctly. Work in progress here > though by me and Ilya. > > On a side note, > it would though be nice to have 32 bit UEFI support on FreeBSD because that > would include support for Intel IoT boards like Galileo etc which are all > 32 bit. Might be a lot of work though.. If any existing 32-bit Linux UEFI loader could be made to work with FreeBSD (possibly chainloading?), that would be better than nothing. I would like to have the opposite method also, having a 64-bit UEFI boot a 32-bit FreeBSD. (Why? So my run-on-anything 32-bit FreeBSD image could still work on any UEFI system.)