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 42E0BCCA47C for ; Wed, 29 Jun 2022 22:55:12 +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-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:Cc:To:Subject:Message-ID:Date:From: In-Reply-To:References:MIME-Version:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=l1F+U0Y2zkyPY5xqouKsEEtUJdS/6vx5tnJ2DB5SKGs=; b=DPRtGuZMX3JK6C 5Xq1kQQqq6karDfm8DGnC3CJaMQvwK2k5Kc6o41wN1H1iodUwo2wHdbgEVN/5e93xicKyzpJKQqO/ +GhYXAqDD84MWcXvOIt0qfUqT5jIuQAh/u0kXXbQl3xC1U2D9y/j8/ycFbU0cp/NIle9u2u+Gc6Si u9lXUxpKxp06cJSAdo6s2FQn21W1UMismuXv2MrfXX2lOzQSgwRyW1LaB+C57VqxzXG30QNSnKhhK jd14OvLz6XUYJS2PjcqvQMOaDZhX+rR5Ih5MmL0jqC9arKuFEOmNDJ1HDnhP7V3S11GDr+Dav9/UJ zMv0r/Jowtlxqz4aB6wg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1o6gZR-00EKkB-DK; Wed, 29 Jun 2022 22:54:05 +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 1o6gZP-00EKjX-5W for linux-arm-kernel@lists.infradead.org; Wed, 29 Jun 2022 22:54:04 +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 F192A61BF5 for ; Wed, 29 Jun 2022 22:54:01 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id C1283C341DB for ; Wed, 29 Jun 2022 22:54:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1656543241; bh=Wnwei/zrN10bL9jU87VPdetb5jDz5QviZHRYYSxWlro=; h=References:In-Reply-To:From:Date:Subject:To:Cc:From; b=D3S8Y5vfCAfm4pxHRoCg1qvr6He0eRqi9QTFSTn2n9VVxTHP5GRJ1pbnO/Krg4Pil eiPmUwiqk7mTBSTmuLMKp5dtsnUPifaDY9LGTIktP1h3qLIWQcek0F4VVsNa2m51EM RUFGDzgSflOTI2bY7fpu3Pz4xss/TxWcddw+pHeY6Vdl9QmDLv8pDwrSBdLJhAnC0n eGB/nR7KxQJzYDAQUDI8ijOBV0gioh36GO0dAiwNbDKXvsDJeky1rQDbM5z1hMy25D Tc+q74ZK4gTS/bFz/mHN6Q6nkzTRbxbS+8qaeoUczW7fn1Wjw8e2twFgVeYfKo46w5 Dh5Lb5/X2p/PA== Received: by mail-vs1-f41.google.com with SMTP id k25so16592366vso.6 for ; Wed, 29 Jun 2022 15:54:01 -0700 (PDT) X-Gm-Message-State: AJIora8q4yB0n8y7DxeLoOIrVF1MdwMkufmZfPGv5YdBFHYn7xwnK0Kh p/vTc1b0UubDgx771Wi3KYM77Dsx6oR0GphILA== X-Google-Smtp-Source: AGRyM1vp5NZEWhLcguNZL386Fp5Ci5AyO6aju7sQ3kWlxEQ2HMaR0k5N7yxSA58NmZoV9huC+t7MkyWvvVP7hWwVnzY= X-Received: by 2002:a67:1787:0:b0:354:6490:437f with SMTP id 129-20020a671787000000b003546490437fmr6957181vsx.26.1656543240448; Wed, 29 Jun 2022 15:54:00 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Rob Herring Date: Wed, 29 Jun 2022 16:53:48 -0600 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: Scheduling (unused) board file removal for linux-6.x To: Arnd Bergmann Cc: Linux ARM , Russell King , Krzysztof Kozlowski , Linus Walleij , Alim Akhtar , Krzysztof Halasa , Daniel Mack , Haojian Zhuang , Robert Jarzmik , Marek Vasut , Lubomir Rintel , Alexander Sverdlin , Hartley Sweeten , linux-omap , Tony Lindgren , Aaro Koskinen , Sekhar Nori , Bartosz Golaszewski , Andrew Lunn , Sebastian Hesselbarth , Gregory CLEMENT , Lennert Buytenhek , Marc Zyngier , Mauri Sandberg X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220629_155403_325411_0EBDF580 X-CRM114-Status: GOOD ( 37.53 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, Jun 29, 2022 at 2:44 PM Arnd Bergmann wrote: > > With the multiplatform work completed in the past merge window, and the > scheduled deprecation of the Samsung s3c platforms, I decided to have a > look at the remaining board files. There are 196 remaining boards, down > from 489 boards ten years ago, but my estimate is that only few of those > ever booted a linux-5.x kernel, and even less for future kernels. The > question is how to find out which ones are still used, and which ones > can go. > > I would propose that we start by changing the assumption that all boards > might be used, instead assuming that they are all outdated unless someone > says that they actually prefer to keep it in the kernel. I have started > a list of all 196 boards and annotated the ones that look like candidates > for removal [1]. If a board you use is on that list, please either reply > here or add a comment in the document. > > Unless someone has a better idea for how to proceed, I would allow > six months for users to speak up and then remove the orphaned board > files for the release following the LTS kernel. I can't list all boards > individually, so here is a breakdown by platform: > > s3c24xx > > These are all scheduled for removal in early 2023 already, once the next > longterm stable kernel is out. No changes here, but it seems useful > to use the same timeline for removing unused board files of the other > platforms together. > > s3c64xx > > There are ten board files, which are currently scheduled for removal in > 2024, along with the DT based boards for this SoC. We can still decide > to throw out some of the board files earlier though, while keeping the > platform around. > > cns3xxx > > There is only one reference board here, the actual products that were > previously supported, none of the board files from openwrt (now gone) made > it in, and the DT support was never completed, so the entire platform can > go away. We could also consider dropping the other arm11mpcore platforms > (oxnas and the mpcore variants of realview/integrator) at the same time, > since there are known issues with the CPU core. > > iop32x > > Some of the NAS devices were still in use two years ago as they have > a lot of RAM for an ARMv5 based machine, not sure if they still are > used. If they are, a DT conversion similar to what we did for ixp4xx > should be possible. > > pxa > > There are a ton of boards on this one, including seven with qemu support, > but based on IRC discussions, my feeling is that everyone who worked on > this has already lost interest a few years ago. There is rudimentary DT > support, so it may be helpful to pick one or two boards (gumstix?) with > good qemu support and keep them around for conversion to DT, while > removing all other boards. FWIW, u-boot is removing all PXA support. Rob _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel