From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 94D6FC433F5 for ; Sat, 9 Apr 2022 04:19:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Content-Type: Content-Transfer-Encoding:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:From:References:Cc:To:Subject: MIME-Version:Date:Message-ID:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=gPvO2A25/PG2iCvjy5cdTkRTIgA7bODWH1ngta5hhlw=; b=GlKJGahk49NCdz eDJWhEOdIbS1SMXm8FTOs+3ySzzC/YTBQJZIqIzBKCBHzE0alvNudUQ7fdh6FTixtFdoN9+PZN/4Z SV74BuEGs5iHdQ6xBMnafJTwITqW9CdWr+fKbN2dKXyLRVpVVXRCrakq/S+1dL2icDBjlMzLILt4n OdGJA8iWGYUk24LPxp6HBim6Fn6xQ9pUFdi7rsl27dtCOEhxCCAzInLEzbmr/5BRWBTe8iqAXzapU UbDvOtqINKMt1IS4arB5fkzcCUJb5MBw59rdXokyZv5wpAGVyfyM4Q9Ykg5Oc/xNYQPw8zKY1GxZj QYSwnF6Xm+oO8oeQ2gUg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nd2Yw-001xJ4-Oj; Sat, 09 Apr 2022 04:19:02 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nd2Yp-001xH0-Br for linux-riscv@lists.infradead.org; Sat, 09 Apr 2022 04:18:56 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id B1DCC60B40; Sat, 9 Apr 2022 04:18:54 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 662C1C385A8; Sat, 9 Apr 2022 04:18:50 +0000 (UTC) Message-ID: <147dc6cc-1fbb-558f-8e6d-29d4327d54b4@linux-m68k.org> Date: Sat, 9 Apr 2022 14:18:48 +1000 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.5.0 Subject: Re: [RFC PULL] remove arch/h8300 Content-Language: en-US To: Finn Thain , Rob Landley Cc: Daniel Palmer , Arnd Bergmann , Christoph Hellwig , Linus Torvalds , Yoshinori Sato , Linux Kernel Mailing List , linux-arch , "moderated list:H8/300 ARCHITECTURE" , "open list:TENSILICA XTENSA PORT (xtensa)" , Max Filippov , Linux-sh list , linux-m68k , Damien Le Moal , linux-riscv References: <6a38e8b8-7ccc-afba-6826-cb6e4f92af83@linux-m68k.org> <5b7687d4-8ba5-ad79-8a74-33fc2496a3db@linux-m68k.org> <8f9be869-7244-d92a-4683-f9c53da97755@landley.net> <3d5cf48c-94f1-2948-1683-4a2a87f4c697@linux-m68k.org> From: Greg Ungerer In-Reply-To: <3d5cf48c-94f1-2948-1683-4a2a87f4c697@linux-m68k.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220408_211855_551300_A6A4B1D2 X-CRM114-Status: GOOD ( 21.38 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org On 9/4/22 11:59, Finn Thain wrote: > On Fri, 8 Apr 2022, Rob Landley wrote: > >> On 4/5/22 08:07, Greg Ungerer wrote: >>> On 5/4/22 13:23, Daniel Palmer wrote: >>>> On Mon, 4 Apr 2022 at 22:42, Greg Ungerer wrote: >>>>> But we could consider the Dragonball support for removal. I keep it >>>>> compiling, but I don't use it and can't test that it actually works. >>>>> Not sure that it has been used for a very long time now. And I >>>>> didn't even realize but its serial driver (68328serial.c) was >>>>> removed in 2015. No one seems too have noticed and complained. >>>> >>>> I noticed this and I am working on fixing it up for a new Dragonball >>>> homebrew machine. I'm trying to add a 68000 machine to QEMU to make >>>> the development easier because I'm currently waiting an hour or more >>>> for a kernel to load over serial. It might be a few months. >> >> I've been booting Linux on qemu-system-m68k -M q800 for a couple years >> now? (The CROSS=m68k target of mkroot in toybox?) >> >> # cat /proc/cpuinfo >> CPU: 68040 >> MMU: 68040 >> FPU: 68040 >> Clocking: 1261.9MHz >> BogoMips: 841.31 >> Calibration: 4206592 loops >> >> It certainly THINKS it's got m68000... >> > > Most 68040 processor variants have a built-in MMU and the m68k "nommu" > Linux port doesn't support them. The nommu port covers processors like > 68000, Dragonball etc. whereas the m68k "mmu" port covers 680x0 where x is > one of 2,3,4,6 with MMU. > >> $ qemu-system-m68k -cpu ? >> cfv4e >> m5206 >> m5208 >> m68000 >> m68010 >> m68020 >> m68030 >> m68040 >> m68060 >> any >> >> (I'd love to get an m68k nommu system working but never sat down and >> worked out a kernel .config qemu agreed to run, plus compiler and libc. >> Musl added m68k support but I dunno if that includes coldfire?) >> > > I could never figure out how to boot a coldfire machine in qemu either. > There was no documentation about that back when I attempted it but maybe > things have improved since. FWIW this will do it: qemu-system-m68k -nographic -machine mcf5208evb -kernel vmlinux That will boot an m5208evb_defconfig generated vmlinux. But you will need a user space to get a full boot to login/shell. Regards Greg _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv