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[213.44.230.108]) by smtp.gmail.com with ESMTPSA id v17sm17831912wrr.69.2021.09.20.23.57.25 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 20 Sep 2021 23:57:25 -0700 (PDT) Subject: Re: Regression, bisected: meson-dwmac8b never loads, no ethernet To: Martin Blumenstingl , Geraldo Nascimento Cc: arnd@arndb.de, bjorn.andersson@linaro.org, linux-amlogic@lists.infradead.org References: From: Neil Armstrong Organization: Baylibre Message-ID: <274de82d-74f7-ad8b-2707-c424ecb6811f@baylibre.com> Date: Tue, 21 Sep 2021 08:57:25 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.13.0 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210920_235728_920130_85883F12 X-CRM114-Status: GOOD ( 18.88 ) X-BeenThere: linux-amlogic@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; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org Hi Geraldo, Thanks for the report On 21/09/2021 07:31, Martin Blumenstingl wrote: > Hi Geraldo, > > On Tue, Sep 21, 2021 at 4:09 AM Geraldo Nascimento > wrote: >> >> Sorry to add further noise to this, as there's still 6 release candidates to solve this regression, but the correct name of the driver is meson8b-dwmac. >> >> You see, git bisecting the kernel had my head spinning so much that I apparently switched the proper driver name. >> >> Speaking of which, I swear I ran git bisect every time telling it good when where's good and vice-versa. And was I left with a qcom general device tree commit that also merges qcom 5.14-rc3 into 5.15 because of a regression in USB apparently? > Which board/SoC are you referring to? > I can confirm that dwmac-meson8b still works fine on an Odroid-C1 > (Meson8b SoC) with 5.15-rc2 > Newer (arm64) SoCs additionally use an MDIO mux driver: > - mdio-mux-mmioreg on GXL, GXM > - mdio-mux-meson-g12a on G12A, G12B, SM1 Indeed it's an issue with mdio muxes, a similar issue had been reported by Marek at https://lore.kernel.org/all/0a2c4106-7f48-2bb5-048e-8c001a7c3fda@samsung.com/ and it concerns commit cf4b94c8530d ("of: property: fw_devlink: Add support for "phy-handle" property") It may be the same issue here. Neil > > > Best regards, > Martin > > _______________________________________________ > linux-amlogic mailing list > linux-amlogic@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-amlogic > _______________________________________________ linux-amlogic mailing list linux-amlogic@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-amlogic