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 BD995CD98F2 for ; Fri, 19 Jun 2026 16:09:00 +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=g3rjYwyXp9LVnLG0ToWc25PWAKwvGflge9Yq+toMptA=; b=tCJ/kbnGGhpxG5Tjx5hZ7+UhgZ t9RhzhNM0I69lNrc7oHtE/L3sBa6cP7fOHEr149WQDsEdlwVlCWn1KFifzVdnpBgOKK/gSVkxCroa eyItdgaYZgHth76xArq6hSJEcA5mbO+/0F/aH1GVzNzv68dhs1Lu0LicRA/TUVxrXWIqxiVpjKA6n z8jWPtRrad3UTGlKzyD0ruW3Gpsr0YeMTT3qzMPJoR6ckkSXTb+PznE/CsWIHTK6Urp/VlyAQSSo0 ElFdosCAZdpPT56CYInSm2UyLt6uJOg3VnJ/2LmIoAkDPf26z76QN/9t/N6EtLbbsONCFIqfZq6J3 kU6OVuHg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wabm1-00000002kwX-3Dcf; Fri, 19 Jun 2026 16:08:53 +0000 Received: from tor.source.kernel.org ([172.105.4.254]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wabm0-00000002kw8-0kEY for linux-arm-kernel@lists.infradead.org; Fri, 19 Jun 2026 16:08:52 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id 48FC5601E1; Fri, 19 Jun 2026 16:08:51 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 19B361F000E9; Fri, 19 Jun 2026 16:08:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1781885331; bh=g3rjYwyXp9LVnLG0ToWc25PWAKwvGflge9Yq+toMptA=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=PiigFRnMAgWqZbRw8JbcDuSyWN/DDDNft2XfAW1edDrOHtPgypB6APfPuGmIhLHu1 xidrGAjPub7xmEhPpv1ekZfWyczoaWbpqZTAK/KzcOr0E4KfwB2DcrpD3CdyY0owFy /j5YhXdsrBRlZBxASaxKu1Z3s2+GqIRNdq34COVmnlFLHKIdtSDbXOmMFdKsM6xc++ 05I6mBEafF6I9VrpOgGSAkdHdO7/yaqfEkuYXGHivIExGArF4ucv3FWG+vGvVlhFLA zc5Iznd/AAZlF+q/kau+VlvD6cfyfYH5y2fpPQTcAHNfaYM6SxZNmplUeHGccTBJJv ME0pKRKGCXJ1Q== Message-ID: <7d946861-c3cb-4512-9d5f-9f4cb9b7ee8a@kernel.org> Date: Fri, 19 Jun 2026 19:07:59 +0300 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 00/11] ARM: NXP: Drop NOMMU platform support To: Frank.Li@oss.nxp.com, Arnd Bergmann , Sascha Hauer , Pengutronix Kernel Team , Stefan Agner , Fabio Estevam , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Russell King , Abel Vesa , Peng Fan , Michael Turquette , Stephen Boyd , Brian Masney , Dong Aisheng , Jacky Bai , NXP S32 Linux Team , Linus Walleij , Piotr Wojtaszczyk , Kees Cook , "Gustavo A. R. Silva" Cc: linux-arm-kernel@lists.infradead.org, imx@lists.linux.dev, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, linux-gpio@vger.kernel.org, linux-hardening@vger.kernel.org, Frank Li References: <20260619-dts_cleanup_arm_mcore-v1-0-0101795a2662@nxp.com> From: Vladimir Zapolskiy In-Reply-To: <20260619-dts_cleanup_arm_mcore-v1-0-0101795a2662@nxp.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit 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 Hello Frank. On 6/19/26 18:40, Frank.Li@oss.nxp.com wrote: > Commercial users and hardware vendors migrated to Zephyr or other RTOS > solutions years ago, leaving the NOMMU platform support effectively > unused and unmaintained. > > Remove the obsolete support to reduce maintenance burden and simplify the > Freescale/nxp platform code. > > Some driver code still be kept and may clean up later since it is possible > reused by other SoC. > > Signed-off-by: Frank Li This change is a bit too early to happen, I prefer to get it orchestrated by Arnd. So, as for today I NAK the change for its NXP LPC part. > --- > Frank Li (11): > ARM: dts: vf610m4: Remove NOMMU platform support > ARM: dts: imxrt1050: Remove NOMMU platform support > ARM: imx: Remove NOMMU platform support > clk: imx: imxrt1050: Remove NOMMU platform support > pinctrl: freescale: IMXRT: Remove NOMMU platform support > ARM: imxrt_defconfig: Remove NOMMU platform support > ARM: dts: lpc: Remove NOMMU platform support > ARM: mach-lpc: Remove NOMMU platform support > ARM: configs: lpc*: Remove NOMMU platform support > clk: nxp: lpc: Remove NOMMU platform support > pinctrl: nxp: lpc: Remove NOMMU platform support > > .../devicetree/bindings/pinctrl/fsl,imxrt1050.yaml | 79 - > .../devicetree/bindings/pinctrl/fsl,imxrt1170.yaml | 77 - > arch/arm/Kconfig | 12 - > arch/arm/Makefile | 2 - > arch/arm/boot/dts/nxp/Makefile | 1 - > arch/arm/boot/dts/nxp/imx/Makefile | 2 - > arch/arm/boot/dts/nxp/imx/imxrt1050-evk.dts | 72 - > arch/arm/boot/dts/nxp/imx/imxrt1050-pinfunc.h | 993 ------------ > arch/arm/boot/dts/nxp/imx/imxrt1050.dtsi | 160 -- > arch/arm/boot/dts/nxp/imx/imxrt1170-pinfunc.h | 1561 ------------------- > arch/arm/boot/dts/nxp/lpc/Makefile | 9 - > arch/arm/boot/dts/nxp/lpc/lpc18xx.dtsi | 543 ------- > arch/arm/boot/dts/nxp/lpc/lpc3250-ea3250.dts | 273 ---- > arch/arm/boot/dts/nxp/lpc/lpc3250-phy3250.dts | 236 --- > arch/arm/boot/dts/nxp/lpc/lpc32xx.dtsi | 540 ------- NXP LPC32xx is ARMv5 and it has MMU, hence it's plainly out of scope of the proposed "dropping NOMMU platform support". -- Best wishes, Vladimir