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 7BEE0C369C2 for ; Fri, 25 Apr 2025 19:26:10 +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:References:Cc:To:From: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=eywZs/5kSaNUk8O4Z3WntchiJJwxPVq/GMnWB+oXReY=; b=oxh1EQPAXTRn0bOKaKBD6ksgWb 9dwcSFUM3DdxS3wV7c7RLAKzfWL4nMrcZk2iQcS7czLPn20pk9zzPB3jzbbkwwHY/iKHwyDu7M+TE 0Bhr1Ybsi382toH1ebzebheH1Gogu8guOeMnzoBOKOdZt5Jsyfc4/X9m/o5vvRcgftNkqAgay9dO0 BsB8hZ940R7YGL9Oe4ZS1ob8hTWvdjCfkfnWaTwHDSi1ClzL97J/fGU3++/OlqLT1V+g7tbGDj8nZ Kb4WLY2wrP1YOuZpPJ8ALra+RllA4/IK+gt0IA+ZAlJ/nGsCplMq0a8fFrqI+01r1zXbAtzGzs2d+ DuX6IHlA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1u8OgS-00000000eAV-3FXs; Fri, 25 Apr 2025 19:26:00 +0000 Received: from sea.source.kernel.org ([172.234.252.31]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1u8Od4-00000000diW-3iCC for linux-arm-kernel@lists.infradead.org; Fri, 25 Apr 2025 19:22:32 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id A33BF43DC7; Fri, 25 Apr 2025 19:22:28 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 48347C4CEE4; Fri, 25 Apr 2025 19:22:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1745608950; bh=lBDY3HHbsz53Zc7WHdH/4KDwPggtrO6s+83XNJ0qc9w=; h=Date:Subject:From:To:Cc:References:In-Reply-To:From; b=KFpOsIzMkOCf2soh/3WLfFPq7okURqHc+dNVw8ONJgLgcIzdAMi1eac6UXCBuWywN RCytIebCVAcgTr+u+Ch1oEZfxtRn1mTcBX1KC4kfRnYilZjL+WVTp0ThWZqc83K0cA XVnT/e1NbGb2ibUeiye8nXd7QcYtgi+WYP/ClGjy1HoWWzf74sWRLjZxougEq5o5gV byTz06CAPzcThN/y/5r6ghH3qVo5iZ4tb9sqPoowEk/yt98LldRrUn+vsJeiUIOH4j 2phuQ5cnJz85opOtwbmgi9edahXQdXrWQEaO4ohkYUWoFLKDW8zKMSZt8LlotCJBhp iUXRhLCiIjAcQ== Message-ID: <32ec4e3f-9a5f-48b1-b87d-62fd5debc018@kernel.org> Date: Fri, 25 Apr 2025 21:22:25 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v1] arm64: dts: imx8qm: add ethernet aliases From: Krzysztof Kozlowski To: Francesco Dolcini , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam Cc: Francesco Dolcini , devicetree@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org References: <20250422100239.58799-1-francesco@dolcini.it> <16a98816-f43c-4f4d-940e-9da30cb1f73f@kernel.org> Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250425_122230_973446_29DA9696 X-CRM114-Status: GOOD ( 13.05 ) 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 25/04/2025 18:39, Krzysztof Kozlowski wrote: > On 25/04/2025 18:36, Krzysztof Kozlowski wrote: >> On 22/04/2025 12:02, Francesco Dolcini wrote: >>> From: Francesco Dolcini >>> >>> Add ethernet aliases, they are used by the firmware to set the MAC >>> address and by systemd to rename network interfaces to predictable >>> interface names, e.g. end0 and end1. >>> >>> Signed-off-by: Francesco Dolcini >>> --- >>> arch/arm64/boot/dts/freescale/imx8qm.dtsi | 2 ++ >>> 1 file changed, 2 insertions(+) >>> >>> diff --git a/arch/arm64/boot/dts/freescale/imx8qm.dtsi b/arch/arm64/boot/dts/freescale/imx8qm.dtsi >>> index 6fa31bc9ece8..eccd0087efa7 100644 >>> --- a/arch/arm64/boot/dts/freescale/imx8qm.dtsi >>> +++ b/arch/arm64/boot/dts/freescale/imx8qm.dtsi >>> @@ -17,6 +17,8 @@ / { >>> #size-cells = <2>; >>> >>> aliases { >>> + ethernet0 = &fec1; >>> + ethernet1 = &fec2; >> Can't they be disabled (e.g. because MAC is external?) on actual board? >> IOW, aliases for exposed interfaces are properties of boards, not SoC. >> >> What's more, I cannot find these in this DTSI, so how can you add alias >> to non-existing node? > > I found them (terrible design by NXP) but they are disabled so that's > the point - adding aliases to disabled nodes is clear sign you are doing > it wrong. I'll fix existing NXP boards because this pattern of adding aliases for disabled (thus non-existing) interface is in multiple places. Best regards, Krzysztof