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 6CC7CC43458 for ; Thu, 2 Jul 2026 07:39:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type: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=TifYnif42ZBQ/k+jPQp5ejbLjX033oKvWYKYmVz+Mmw=; b=W8Cq0KlH1QyEbWhbXXo3NLzqwe J9moO4o59PnnHDHbc6zYopBFEqcvyxopYNyhQS/rNAnWm351Q8ZvbkufSKPeWCLdXHtd5d6MgKwkj Gdny2KqaN2sRtKQJedYaKJ/6eSh1uD9Vlx4CQFWKV8zgXEV78AvwUDkGIp311i/Q3pieiLYoJbroO dfTIJRNxaKCWFtmgtrPrHBqAClP0o+qIorLKFQmfc0wkJYtti+hulY3tQ2VPgxpRh7kmr9RfscjbZ Bn3mlyV8KG8KllsId8IYiw+n+BNZBq6eYhWvbG7rf6DPTx22uFTupke2Sr9F7kvo45y0Gaj/MLwTy 4O9AW4eA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wfC12-00000003kxr-0bhQ; Thu, 02 Jul 2026 07:39:20 +0000 Received: from esa.microchip.iphmx.com ([68.232.154.123]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wfC0y-00000003kx5-3ZtE for linux-arm-kernel@lists.infradead.org; Thu, 02 Jul 2026 07:39:18 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1782977958; x=1814513958; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to:content-transfer-encoding; bh=/hiYXX+Tl9Oi9Ll1odfLmRU1+IL7JIxTnj5Jgck2HxQ=; b=gDtkathtUtotk0gYXF9hjNYulENJbFTMOtJVSrk0ruVlegEJovFVeKGn 8zBO7VqYcD3i4KFrc+L9ghCQ0jX48+qRKGIsjCRvhbe95menaaD1Ke1Mf OnfPh/mOsscPMW3WAyTJC6aq+9MYqA7qWQyoAjws7H9Qz0n8VEH2+w/kE 29gifjI1pi+zW53Mhr7RQnADebWytr5QKU0zD1e1BJKRCL/f/20N5YtUg bMWzIdAZMVV0tyYHLHPduqq+qkqTr/+i5CCGe2Jcn8hY+Z4TXsQb8NupY sICduP1eLoaVDAu8EBu8Z5iATgzAwXQYKQw+ZoyIBnLg+Si+p0F0P4I/q g==; X-CSE-ConnectionGUID: Kzlc3EJsT/a0PYNYbFcCFg== X-CSE-MsgGUID: Q2pi1i4kRfO/I5PSg+70xQ== X-IronPort-AV: E=Sophos;i="6.25,143,1779174000"; d="scan'208";a="60352475" X-Amp-Result: SKIPPED(no attachment in message) Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa2.microchip.iphmx.com with ESMTP/TLS/ECDHE-RSA-AES128-GCM-SHA256; 02 Jul 2026 00:39:17 -0700 Received: from chn-vm-ex04.mchp-main.com (10.10.85.152) by chn-vm-ex02.mchp-main.com (10.10.85.144) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.58; Thu, 2 Jul 2026 00:39:14 -0700 Received: from [10.171.248.30] (10.10.85.11) by chn-vm-ex04.mchp-main.com (10.10.85.152) with Microsoft SMTP Server id 15.1.2507.58 via Frontend Transport; Thu, 2 Jul 2026 00:39:06 -0700 Message-ID: <54e742dd-aced-40f0-b4be-df160c8cbe3d@microchip.com> Date: Thu, 2 Jul 2026 09:39:05 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 17/19] ARM: mark Cortex-M3/M4/M7 based boards as deprecated To: Arnd Bergmann , , CC: , Arnd Bergmann , Aaro Koskinen , Alexander Sverdlin , Alexandre Belloni , Alexandre Torgue , Andrew Lunn , Ard Biesheuvel , Claudiu Beznea , Daniel Mack , Ethan Nelson-Moore , Frank Li , Gregory Clement , Haojian Zhuang , "Jeremy J. Peper" , Kristoffer Ericson , Krzysztof Kozlowski , Linus Walleij , Mark Brown , Marc Zyngier , Mike Rapoport , Patrice Chotard , Ralph Siemsen , Robert Jarzmik , Russell King , Sascha Hauer , Sebastian Hesselbarth , Stefan Agner , Stefan Wiehler , Tony Lindgren , Vladimir Zapolskiy , Will Deacon References: <20260701212353.2196041-1-arnd@kernel.org> <20260701212353.2196041-18-arnd@kernel.org> From: Nicolas Ferre Content-Language: en-US, fr Organization: microchip In-Reply-To: <20260701212353.2196041-18-arnd@kernel.org> Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260702_003916_960382_010482F8 X-CRM114-Status: GOOD ( 22.59 ) 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 01/07/2026 at 23:23, Arnd Bergmann wrote: > From: Arnd Bergmann > > The Cortex-M3/M4/M7 cores were designed as a replacement for the earlier > ARM7TDMI and ARM9TDMI microarchitectures used in older microcontrollers. > > At the moment, Linux can run these cores either when they are integrated > into a larger SoC, or as standalone microcontrollers. While there was > a lot of development work going into Cortex-M support from 2011 to 2016, > this largely stopped when it became clear that Zephyr and other RTOS > had taken over that market. To date, the only Cortex-M based based > microcontroller boards supported upstream are reference implementations. > > Schedule these for removal after the next LTS kernel, so if any users > remain that want to update their kernels, they can stay on that > version for a few years before having to maintain the platform support > out of tree. > > Signed-off-by: Arnd Bergmann > --- > arch/arm/Kconfig | 8 ++++++-- > arch/arm/mach-at91/Kconfig | 4 +++- > arch/arm/mach-imx/Kconfig | 4 +++- > arch/arm/mach-stm32/Kconfig | 14 ++++++++------ > 4 files changed, 20 insertions(+), 10 deletions(-) [..] > diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig > index c5ef27e3cd8f..cb0e3ff8e0ca 100644 > --- a/arch/arm/mach-at91/Kconfig > +++ b/arch/arm/mach-at91/Kconfig > @@ -15,13 +15,15 @@ menuconfig ARCH_AT91 > > if ARCH_AT91 > config SOC_SAMV7 > - bool "SAM Cortex-M7 family" if ARM_SINGLE_ARMV7M > + bool "SAM Cortex-M7 family (DEPRECATED)" if ARM_SINGLE_ARMV7M > select COMMON_CLK_AT91 > select PINCTRL_AT91 > help > Select this if you are using an SoC from Microchip's SAME7, SAMS7 or SAMV7 > families. > > + This platform is scheduled for removal in early 2027 Acked-by: Nicolas Ferre > + > config SOC_SAMA5D2 > bool "SAMA5D2 family" > depends on ARCH_MULTI_V7 [..] Thanks, regards, Nicolas