From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lists.gentoo.org ([140.105.134.102] helo=robin.gentoo.org) by nuthatch.gentoo.org with esmtp (Exim 4.54) id 1F3bxl-0001vm-4L for garchives@archives.gentoo.org; Mon, 30 Jan 2006 16:33:09 +0000 Received: from robin.gentoo.org (localhost [127.0.0.1]) by robin.gentoo.org (8.13.5/8.13.5) with SMTP id k0UGW10l022979; Mon, 30 Jan 2006 16:32:01 GMT Received: from mx2.uec.ac.jp (mx2.uec.ac.jp [130.153.8.31]) by robin.gentoo.org (8.13.5/8.13.5) with SMTP id k0UGVukL014246 for ; Mon, 30 Jan 2006 16:31:59 GMT Received: (qmail 15418 invoked by uid 0); 31 Jan 2006 01:31:54 +0900 Received: from unknown (HELO ns1.fs.se.uec.ac.jp) (130.153.146.206) by mx2.uec.ac.jp with SMTP; 31 Jan 2006 01:31:54 +0900 Received: from localhost (bonzo.fs.se.uec.ac.jp [130.153.146.203]) by ns1.fs.se.uec.ac.jp (8.12.8p1/8.12.8) with ESMTP id k0UGVsgl013908 for ; Tue, 31 Jan 2006 01:31:54 +0900 (JST) (envelope-from kimura@fs.se.uec.ac.jp) Date: Tue, 31 Jan 2006 01:31:38 +0900 From: KIMURA Masaru / hiyuh To: gentoo-embedded@lists.gentoo.org Subject: Re: [gentoo-embedded] new ARM920T based computer design (EP9315) Message-ID: <20060130163138.GA22143@fs.se.uec.ac.jp> Mail-Followup-To: gentoo-embedded@lists.gentoo.org References: <200601272042.14245.liquidcable@bulah.com> <20060130092210.GA22569@fs.se.uec.ac.jp> <200601300831.42993.liquidcable@bulah.com> Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-embedded@gentoo.org Reply-to: gentoo-embedded@lists.gentoo.org Mime-Version: 1.0 Content-Type: text/plain; charset=iso-2022-jp Content-Disposition: inline In-Reply-To: <200601300831.42993.liquidcable@bulah.com> User-Agent: Mutt/1.5.11 X-Archives-Salt: 29b71c42-0587-425a-b694-6672fabd7375 X-Archives-Hash: 3f6d020ed878098b60c64223925e3169 On 08:31 Mon 30 Jan , Heath Holcomb wrote: (SNIP) > Thanks for the links! It looks like the stock 2.6.x kernel does not work > fully with the EP93xx chips, right? IIRC, it is NOT official 2.6.x kernel as its name is. Official linux-2.6.15 tarball shows that, it has NO arch/arm/march-ep93xx or so. So, it means you needs EP93xx patches or so, maybe. About Armadillo-9, it has 2.6.x and 2.4.x kernel sources. http://download.atmark-techno.com/armadillo-9/source/ And almost it seems work fine for the SBC's specification said. And then, some EP93xx chips has Maverick Crunch FPU. I want to this FPU to compute some mathematical operations. But now, it's PITA for me. Because, for support this FPU, it needs official GNU gcc version 4.0.2 or so. Otherwise, some hacks are required. http://yann.poupet.free.fr/ep93xx/ > Do you know anything about running the kernel out of NOR flash? I ask because > NOR flash can execute out of inself, instead of having to copy the kernel to > RAM and run from RAM. This makes boot times faster, but NOR flash does not > support filing systems the way NAND flash does (think compact flash, > usbsticks, etc..). I'm not familir with the features of difference of between NOR and NAND flash. And then, Armadillo-9 can select which it boots from CF or its flash. Mine boots from MicroDrive via CF interface at the moment. After it boot, it can use USB. But it can not boots from USB stick, I heard. IMHO, to make boot time faster depends on boot loader and/or init script rather than kernel. Armadillo-9 has hermit-at as bootloader which is branched from hermit and shoehorn as kernel parameters setting app. sys-apps/baselayout-lite in portage tree would be nice for tweaking init script, maybe. -- gentoo-embedded@gentoo.org mailing list