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(93-34-89-13.ip49.fastwebnet.it. [93.34.89.13]) by smtp.gmail.com with ESMTPSA id y8-20020a5d4708000000b0033b507b0abdsm9642834wrq.32.2024.02.13.06.18.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 13 Feb 2024 06:18:13 -0800 (PST) Message-ID: <65cb7a25.5d0a0220.de7b7.a1f3@mx.google.com> X-Google-Original-Message-ID: Date: Tue, 13 Feb 2024 15:18:09 +0100 From: Christian Marangi To: Andrew Lunn Cc: Heiner Kallweit , Russell King , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , "Russell King (Oracle)" , Robert Marko , netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [net-next PATCH] net: phy: aquantia: add AQR111 and AQR111B0 PHY ID References: <20240213133558.1836-1-ansuelsmth@gmail.com> <233cd45b-28d5-477d-a193-8273684953aa@lunn.ch> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <233cd45b-28d5-477d-a193-8273684953aa@lunn.ch> On Tue, Feb 13, 2024 at 03:09:57PM +0100, Andrew Lunn wrote: > On Tue, Feb 13, 2024 at 02:35:51PM +0100, Christian Marangi wrote: > > Add Aquantia AQR111 and AQR111B0 PHY ID. These PHY advertise 10G speed > > but actually supports up to 5G speed, hence some manual fixup is needed. > > Any chance this is a "golden screwdriver" situation? The chip really > can do 10G, but the firmware is supposed to limit it to 5G? This is > just a firmware "bug"? > From [1] the PHY can support up to 5G so yes it is a firmware bug. I can try searching for some regs to fix the wrong provision values if really needed. [1] https://www.marvell.com/content/dam/marvell/en/public-collateral/transceivers/marvell-phys-transceivers-aqrate-gen3-product-brief-2019-09.pdf -- Ansuel