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 X-Spam-Level: X-Spam-Status: No, score=-6.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 49F68C433DB for ; Mon, 11 Jan 2021 20:11:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E77CE2054F for ; Mon, 11 Jan 2021 20:11:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2391372AbhAKULM (ORCPT ); Mon, 11 Jan 2021 15:11:12 -0500 Received: from mail.kernel.org ([198.145.29.99]:58996 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726722AbhAKULL (ORCPT ); Mon, 11 Jan 2021 15:11:11 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 06C5A22D04 for ; Mon, 11 Jan 2021 20:10:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1610395831; bh=PAmmi3WEVNu+XF6HOJcil+oslU7LNAsHmQgcOS7diCQ=; h=References:In-Reply-To:From:Date:Subject:To:Cc:From; b=I72FBlX3qlW+aQzowCV1kutMZCcjqCNlHANlEy56XF4khfePE8vAFKtaOyxpBmZFn B6NjqJihUBs54hyj5AzkMnr0rWvztprNKR5+0RjffvcIQOm6FZ4/k1wnKUee/QzUMK E425Q0mrtlV3u+QP7OlKDTFwmM5pjuw6fJ86CkMyPWXlq4QGUUToBdCzIVpkro33uU +9mGqeE69Mc/xxwE9jUBfgQXFhGuPTAURPxw/EtZLwHkopQJaJhE6C/bYhzvkSMu82 AavvbOQlGXWSjoqT0oUtw+K66nkm4KWiSqaGTkXS5lZbdzstJkd9x3FokPKXg5D+LX IgxnwWfNWrWgg== Received: by mail-oi1-f177.google.com with SMTP id f132so605951oib.12 for ; Mon, 11 Jan 2021 12:10:30 -0800 (PST) X-Gm-Message-State: AOAM531oEdAiFLiuCmq6TP6iNBau94lnzn5+dZNf8IOw+gT06qovQnlw qyJv1MiLR/YRqcvd2ygLtNHWDmgvDeGP1sMO+Wc= X-Google-Smtp-Source: ABdhPJx8fWqrvTGn3wI1Z2wCm0FLpeaYFvG+O8ZhOkp3Nmb7sRZiqysCgyKK2zfCfep7SqLqul//v+L6P1GustpH12g= X-Received: by 2002:aca:44d:: with SMTP id 74mr353245oie.4.1610395829991; Mon, 11 Jan 2021 12:10:29 -0800 (PST) MIME-Version: 1.0 References: <20210111205814.0e6d3493@windsurf.home> In-Reply-To: <20210111205814.0e6d3493@windsurf.home> From: Arnd Bergmann Date: Mon, 11 Jan 2021 21:10:12 +0100 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: Old platforms: bring out your dead To: Thomas Petazzoni Cc: Linux ARM , Linux Kernel Mailing List , Baruch Siach , Geert Uytterhoeven , Neil Armstrong , Viresh Kumar , Linus Walleij , Daniel Tang , Jamie Iles , Krzysztof Adamski , Alexander Shiyan , Michael Ellerman , Russell King - ARM Linux , Wei Xu , Oleksij Rempel , Alex Elder , Marc Gonzalez , Hans Ulli Kroll , =?UTF-8?Q?Uwe_Kleine=2DK=C3=B6nig?= , Steven Rostedt , Vladimir Zapolskiy , Lubomir Rintel , Koen Vandeputte , Barry Song , Thomas Bogendoerfer , Yoshinori Sato , Jonas Jensen , Hartley Sweeten , Mark Salter , Shawn Guo , Alexandre Belloni Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jan 11, 2021 at 8:58 PM Thomas Petazzoni wrote: > > On Fri, 8 Jan 2021 23:55:06 +0100 Arnd Bergmann wrote= : > > So overall, I'd say that yes we could probably drop arch/arm/mach-dove/. Russell mentioned that he still uses a cubox with an out-of-tree board file for dove. > > * spear -- added in 2010, no notable changes since 2015 > > Well, I did quite a few improvements in spear DTs in 2017, some > improvements to the NAND FSMC driver for Spear, and my colleague Miqu=C3= =A8l > Raynal fixed an issue in the Spear NOR driver in 2019. > > We have one customer running a 4.14 upstream kernel on a Spear600 > product, and this was a fairly "recent" port, in the sense that the > product was originally running WinCE, and we ported Linux to it many > years later after the product was first shipped. Ok, thanks for the list, very helpful. Sorry I missed your DT changes when I went through the logs there. Viresh already pointed out Schneider Electric as a user of multiple SPEAr SoCs. > > * lpc32xx -- added in 2010, multiplatform 2019, hardware is EOL > > As late as early 2020, we were finishing the migration of one of our > customer LPC32xx platform to a recent mainline kernel. > > So in fact for us at Bootlin, it happens pretty regularly to see users > of "legacy" platforms having a need for an updated kernel. From the > above, you can see that even legacy SoCs such as Spear600 and LPC32xx > are still used in products were kernel are being updated. I had put the lpc32xx in the list of code that is still updated and should not get removed unless the maintainers think it is near its end of useful life (which I did not really expect in this case). Arnd 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 X-Spam-Level: X-Spam-Status: No, score=-4.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C5808C433DB for ; Mon, 11 Jan 2021 20:12:03 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 5F37C2054F for ; Mon, 11 Jan 2021 20:12:03 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5F37C2054F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; 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Mon, 11 Jan 2021 12:10:29 -0800 (PST) MIME-Version: 1.0 References: <20210111205814.0e6d3493@windsurf.home> In-Reply-To: <20210111205814.0e6d3493@windsurf.home> From: Arnd Bergmann Date: Mon, 11 Jan 2021 21:10:12 +0100 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: Old platforms: bring out your dead To: Thomas Petazzoni X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210111_151032_733960_F4DE77EF X-CRM114-Status: GOOD ( 23.76 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Baruch Siach , Geert Uytterhoeven , Neil Armstrong , Viresh Kumar , Linus Walleij , Alexandre Belloni , Daniel Tang , Jamie Iles , Krzysztof Adamski , Alexander Shiyan , Michael Ellerman , Russell King - ARM Linux , Wei Xu , Oleksij Rempel , Alex Elder , Marc Gonzalez , Hans Ulli Kroll , =?UTF-8?Q?Uwe_Kleine=2DK=C3=B6nig?= , Steven Rostedt , Vladimir Zapolskiy , Lubomir Rintel , Koen Vandeputte , Linux ARM , Barry Song , Thomas Bogendoerfer , Yoshinori Sato , Linux Kernel Mailing List , Jonas Jensen , Hartley Sweeten , Mark Salter , Shawn Guo Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org T24gTW9uLCBKYW4gMTEsIDIwMjEgYXQgODo1OCBQTSBUaG9tYXMgUGV0YXp6b25pCjx0aG9tYXMu cGV0YXp6b25pQGJvb3RsaW4uY29tPiB3cm90ZToKPiA+IE9uIEZyaSwgOCBKYW4gMjAyMSAyMzo1 NTowNiArMDEwMCBBcm5kIEJlcmdtYW5uIDxhcm5kQGtlcm5lbC5vcmc+IHdyb3RlOgo+Cj4gU28g b3ZlcmFsbCwgSSdkIHNheSB0aGF0IHllcyB3ZSBjb3VsZCBwcm9iYWJseSBkcm9wIGFyY2gvYXJt L21hY2gtZG92ZS8uCgpSdXNzZWxsIG1lbnRpb25lZCB0aGF0IGhlIHN0aWxsIHVzZXMgYSBjdWJv eCB3aXRoIGFuIG91dC1vZi10cmVlCmJvYXJkIGZpbGUgZm9yIGRvdmUuCgo+ID4gKiBzcGVhciAt LSBhZGRlZCBpbiAyMDEwLCBubyBub3RhYmxlIGNoYW5nZXMgc2luY2UgMjAxNQo+Cj4gV2VsbCwg SSBkaWQgcXVpdGUgYSBmZXcgaW1wcm92ZW1lbnRzIGluIHNwZWFyIERUcyBpbiAyMDE3LCBzb21l Cj4gaW1wcm92ZW1lbnRzIHRvIHRoZSBOQU5EIEZTTUMgZHJpdmVyIGZvciBTcGVhciwgYW5kIG15 IGNvbGxlYWd1ZSBNaXF1w6hsCj4gUmF5bmFsIGZpeGVkIGFuIGlzc3VlIGluIHRoZSBTcGVhciBO T1IgZHJpdmVyIGluIDIwMTkuCj4KPiBXZSBoYXZlIG9uZSBjdXN0b21lciBydW5uaW5nIGEgNC4x NCB1cHN0cmVhbSBrZXJuZWwgb24gYSBTcGVhcjYwMAo+IHByb2R1Y3QsIGFuZCB0aGlzIHdhcyBh IGZhaXJseSAicmVjZW50IiBwb3J0LCBpbiB0aGUgc2Vuc2UgdGhhdCB0aGUKPiBwcm9kdWN0IHdh cyBvcmlnaW5hbGx5IHJ1bm5pbmcgV2luQ0UsIGFuZCB3ZSBwb3J0ZWQgTGludXggdG8gaXQgbWFu eQo+IHllYXJzIGxhdGVyIGFmdGVyIHRoZSBwcm9kdWN0IHdhcyBmaXJzdCBzaGlwcGVkLgoKT2ss IHRoYW5rcyBmb3IgdGhlIGxpc3QsIHZlcnkgaGVscGZ1bC4gU29ycnkgSSBtaXNzZWQgeW91ciBE VCBjaGFuZ2VzCndoZW4gSSB3ZW50IHRocm91Z2ggdGhlIGxvZ3MgdGhlcmUuClZpcmVzaCBhbHJl YWR5IHBvaW50ZWQgb3V0IFNjaG5laWRlciBFbGVjdHJpYyBhcyBhIHVzZXIgb2YgbXVsdGlwbGUK U1BFQXIgU29Dcy4KCj4gPiAqIGxwYzMyeHggLS0gYWRkZWQgaW4gMjAxMCwgbXVsdGlwbGF0Zm9y bSAyMDE5LCBoYXJkd2FyZSBpcyBFT0wKPgo+IEFzIGxhdGUgYXMgZWFybHkgMjAyMCwgd2Ugd2Vy ZSBmaW5pc2hpbmcgdGhlIG1pZ3JhdGlvbiBvZiBvbmUgb2Ygb3VyCj4gY3VzdG9tZXIgTFBDMzJ4 eCBwbGF0Zm9ybSB0byBhIHJlY2VudCBtYWlubGluZSBrZXJuZWwuCj4KPiBTbyBpbiBmYWN0IGZv ciB1cyBhdCBCb290bGluLCBpdCBoYXBwZW5zIHByZXR0eSByZWd1bGFybHkgdG8gc2VlIHVzZXJz Cj4gb2YgImxlZ2FjeSIgcGxhdGZvcm1zIGhhdmluZyBhIG5lZWQgZm9yIGFuIHVwZGF0ZWQga2Vy bmVsLiBGcm9tIHRoZQo+IGFib3ZlLCB5b3UgY2FuIHNlZSB0aGF0IGV2ZW4gbGVnYWN5IFNvQ3Mg c3VjaCBhcyBTcGVhcjYwMCBhbmQgTFBDMzJ4eAo+IGFyZSBzdGlsbCB1c2VkIGluIHByb2R1Y3Rz IHdlcmUga2VybmVsIGFyZSBiZWluZyB1cGRhdGVkLgoKSSBoYWQgcHV0IHRoZSBscGMzMnh4IGlu IHRoZSBsaXN0IG9mIGNvZGUgdGhhdCBpcyBzdGlsbCB1cGRhdGVkIGFuZApzaG91bGQgbm90IGdl dCByZW1vdmVkIHVubGVzcyB0aGUgbWFpbnRhaW5lcnMgdGhpbmsgaXQgaXMgbmVhcgppdHMgZW5k IG9mIHVzZWZ1bCBsaWZlICh3aGljaCBJIGRpZCBub3QgcmVhbGx5IGV4cGVjdCBpbiB0aGlzIGNh c2UpLgoKICAgICAgICBBcm5kCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fXwpsaW51eC1hcm0ta2VybmVsIG1haWxpbmcgbGlzdApsaW51eC1hcm0ta2VybmVs QGxpc3RzLmluZnJhZGVhZC5vcmcKaHR0cDovL2xpc3RzLmluZnJhZGVhZC5vcmcvbWFpbG1hbi9s aXN0aW5mby9saW51eC1hcm0ta2VybmVsCg==