From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 30 Jan 2003 13:34:45 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 30 Jan 2003 13:34:45 -0500 Received: from nat-pool-rdu.redhat.com ([66.187.233.200]:2236 "EHLO devserv.devel.redhat.com") by vger.kernel.org with ESMTP id ; Thu, 30 Jan 2003 13:34:43 -0500 Date: Thu, 30 Jan 2003 13:44:02 -0500 From: Pete Zaitcev To: Konrad Eisele Cc: PeteZaitcev , sparclinux@vger.kernel.org, leon_sparc@groups1.vip.scd.yahoo.com, dfoulds@pacbell.net, linux-kernel@vger.kernel.org Subject: Re: Adding sparc-leon linux to sourcetree Message-ID: <20030130134402.A12226@devserv.devel.redhat.com> References: <200301301353.h0UDrxO24129@mailgate5.cinetic.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: <200301301353.h0UDrxO24129@mailgate5.cinetic.de>; from eiselekd@web.de on Thu, Jan 30, 2003 at 02:53:59PM +0100 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org > Date: Thu, 30 Jan 2003 14:53:59 +0100 > From: Konrad Eisele > I would like to ask if it would be possible to add arch/sparc-leon as > a new architecture to the sourcetree of linux. From 16.12.02 to 16.3.03 > I'm employed at the University and by Jiri Gaisler's Gaisler Reasearch > to add the MMU that I made as a diploma thesis to the official Leon > distiribution (the open source sparc chip). [...] I think it is a worthy goal to have a generic Linux for a generic LEON, but before I support this particular project, I would like to discuss one thing. Your VHDL target must be in use by someone long term. I do not even care if Opencores or whoever accepts it, but there must be a nonzero user base, now and in the future. I do not want to add it then to rip it out like AP-1000. For comparison, a recurring topic on Sparclinux list is a removal of sun4 and even sun4c. I was ready to support David Foulds' MMU before, but it never materialized. > Almost all the source is a copy from the original sparc distribution > of you what I'm basically doing is to write the bootup initialization > routines for leon and to throw out the sun hardware stuff. "Throw out the sun hardware stuff" sounds broken. Look closer at CONFIG_SUN4. So far I do not see why you need a separate architecture. Sure, throwing the stuff away helps you to finish your diploma on time, but then I have to maintain what's left. > I'm currently adjusting linux for that platform based on linux 2.5.53. > I do not know exactly when I willl have a first running kernel, > but when I have one then what should I do get it into the sourcetree? Discuss early, discuss often. Use Sparclinux@vger.kernel.org and, perhaps, the Leon list at (bleah!) yahoogroups. Learn to send patches, and be ready to stay as a patch for a while (a year or so). I think Jeff Dike's UML is a model of project management for you (http://user-mode-linux.sourceforge.net/). He stayed outside AND in close contact while he proved that the project was viable, then Linus took it. Good luck and send those patches, -- Pete