From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-wr1-f42.google.com (mail-wr1-f42.google.com [209.85.221.42]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 83FA81B75 for ; Tue, 15 Mar 2022 07:37:10 +0000 (UTC) Received: by mail-wr1-f42.google.com with SMTP id x15so27492745wru.13 for ; Tue, 15 Mar 2022 00:37:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:content-transfer-encoding:in-reply-to; bh=OwoeDvRtQzvS4dvZsnQa2LZQBqsCmVjqhnox0xSOPkw=; b=A/s2nId2x/GkAj2vEU2y8bRnLG9OvetGVYTPr+1AqYHaW2KbbUa3CpX5L18HfhmEeX QrJwSca/SM4hKwYCqLWABiG7HDLqm147giJ1lXnRH0s4eTUnCaCBDT28SmPcvtdVqRO1 6d097scoNQkPCkZ7roE+1YKOp85wW3PzQDCG3WndvgOyULIDsh9/R61IWXZ9BLdxUpDL r1Pfqp9DjaJYf/EaeuW2vO7mQr6zXF2pt04vRBauF0Osf2/U5w7ruOTQoyHenQ6Djpe3 W5Jzt8yrl6T81gDttWw0R+EHDi4IbxauzND+9DdW7UcyZW88do/68ZOKEA0L7/vDVSPX MQSw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:content-transfer-encoding :in-reply-to; bh=OwoeDvRtQzvS4dvZsnQa2LZQBqsCmVjqhnox0xSOPkw=; b=eobTjnZzWLsFaaPD/m6vqplSEncwevEvFB2LQ0ZT9doqG24B7yiFDtrodIJMN6FgBU hicZQVCFzOsdzcMQzH3OT01k9B7Pba9QI+HWLakMzHNuP4cP7DiUO1GApf/9cElCKzQM ECQ8bJHR+xKRCps2cjcszVLNrKrfcWkSEshcqRBE8m0Yd7xbuFLzQUnoRSrD9mjD2U6S eSuLbPCSvtggz6jkTZPsKPRG4B5qZ4tQtIq7t1xoRcoVxl1WfGpGAjELTDC9pzF+J47W zOCPjosFCjQGa5trVBDM1BkrHNGhuAE05BlgYsUun9DXtI29+Awg1lY/1EpFD4lASFrH wDgg== X-Gm-Message-State: AOAM530xJayRaeYSqHlv2z4sVmMPwWhTHe/yISMAl5/TGZU5zBI+Y/xf jPdAfvvO0Y110NTcn5ufi3AtNGmn+FU= X-Google-Smtp-Source: ABdhPJymNcUXpDAqZozSiaRLyRNNamAjYT4dnA0x5ZUi9ppHEM+ePeFNANf29fx9v1CjoZEtzlv/GQ== X-Received: by 2002:a5d:5449:0:b0:1f0:1a0c:963f with SMTP id w9-20020a5d5449000000b001f01a0c963fmr18612606wrv.98.1647329828611; Tue, 15 Mar 2022 00:37:08 -0700 (PDT) Received: from Red ([2a01:cb1d:3d5:a100:264b:feff:fe03:2806]) by smtp.googlemail.com with ESMTPSA id u11-20020a05600c19cb00b00389efe9c512sm1574404wmq.23.2022.03.15.00.37.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 15 Mar 2022 00:37:08 -0700 (PDT) Date: Tue, 15 Mar 2022 08:37:06 +0100 From: Corentin Labbe To: Petr =?utf-8?Q?=C5=A0tetiar?= Cc: Greg Kroah-Hartman , Maxime Ripard , Bastien =?iso-8859-1?Q?Roucari=E8s?= , Chen-Yu Tsai , Jernej Skrabec , Rob Herring , stable@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org Subject: Re: [PATCH] Revert "ARM: dts: sun7i: A20-olinuxino-lime2: Fix ethernet phy-mode" Message-ID: References: <20220308125531.27305-1-ynezz@true.cz> <20220315072846.GA9129@meh.true.cz> Precedence: bulk X-Mailing-List: linux-sunxi@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20220315072846.GA9129@meh.true.cz> Le Tue, Mar 15, 2022 at 08:28:58AM +0100, Petr Štetiar a écrit : > Petr Štetiar [2022-03-08 13:55:30]: > > Hi Greg, > > one week has passed and as I didn't received any feedback, I'm providing more > details in a hope to make it more clear, why I think, that this fix is wrong > and should be reverted in LTS kernels 5.10 and 5.15. > > > This reverts commit 55dd7e059098ce4bd0a55c251cb78e74604abb57 as it breaks > > network on my A20-olinuxino-lime2 hardware revision "K" which has Micrel > > KSZ9031RNXCC-TR Gigabit PHY. Bastien has probably some previous hardware > > revisions which were based on RTL8211E-VB-CG1 PHY and thus this fix was > > working on his board. > > Disclaimer, I don't own A20-olinuxino-lime2 board with earlier HW revisions > G/G1/G2 utilizing RTL8211E PHY. > > My understanding is, that up to kernel version 5.9 and specifically commit > bbc4d71d6354 ("net: phy: realtek: fix rtl8211e rx/tx delay config") it was > likely possible to use same DTS for A20-olinuxino-lime2 with KSZ9031 or > RTL8211E PHYs (all HW revisions). > > At least I was using my A20-olinuxino-lime2 HW revision K with KSZ9031 PHY > just fine with 4.19 kernel. After upgrade to 5.10 LTS kernel my network > stopped working, reverting stable backport commit a90398438517 ("ARM: dts: > sun7i: A20-olinuxino-lime2: Fix ethernet phy-mode") fixed it. > > From my POV proper fix for earlier HW revisions G/G1/G2 is introduction of > sun7i-a20-olinuxino-lime2-revG.dts with a proper `phy-mode` for RTL8211E PHY. > > Cheers, > > Petr > Hello If your patch is applied, older revisions will stop working, right ? What about adding a new dtb like sun7i-a20-olinuxino-lime2-revk.dts ? Regards > > Cc: stable@vger.kernel.org > > Cc: Bastien Roucariès > > References: https://github.com/openwrt/openwrt/issues/9153 > > References: https://github.com/OLIMEX/OLINUXINO/blob/master/HARDWARE/A20-OLinuXino-LIME2/hardware_revision_changes_log.txt > > Signed-off-by: Petr Štetiar > > --- > > arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts | 2 +- > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > diff --git a/arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts b/arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts > > index ecb91fb899ff..8077f1716fbc 100644 > > --- a/arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts > > +++ b/arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts > > @@ -112,7 +112,7 @@ &gmac { > > pinctrl-names = "default"; > > pinctrl-0 = <&gmac_rgmii_pins>; > > phy-handle = <&phy1>; > > - phy-mode = "rgmii-id"; > > + phy-mode = "rgmii"; > > status = "okay"; > > }; > 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 66926C433F5 for ; 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Tue, 15 Mar 2022 00:37:08 -0700 (PDT) Date: Tue, 15 Mar 2022 08:37:06 +0100 From: Corentin Labbe To: Petr =?utf-8?Q?=C5=A0tetiar?= Cc: Greg Kroah-Hartman , Maxime Ripard , Bastien =?iso-8859-1?Q?Roucari=E8s?= , Chen-Yu Tsai , Jernej Skrabec , Rob Herring , stable@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org Subject: Re: [PATCH] Revert "ARM: dts: sun7i: A20-olinuxino-lime2: Fix ethernet phy-mode" Message-ID: References: <20220308125531.27305-1-ynezz@true.cz> <20220315072846.GA9129@meh.true.cz> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20220315072846.GA9129@meh.true.cz> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220315_003712_178344_F57EB503 X-CRM114-Status: GOOD ( 27.80 ) 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; 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