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(93-34-91-161.ip49.fastwebnet.it. [93.34.91.161]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-385e0d4778dsm14329018f8f.45.2024.12.04.02.07.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 04 Dec 2024 02:07:11 -0800 (PST) Message-ID: <675029cf.df0a0220.1d1837.a877@mx.google.com> X-Google-Original-Message-ID: Date: Wed, 4 Dec 2024 11:07:08 +0100 From: Christian Marangi To: "Russell King (Oracle)" Cc: Maxime Chevallier , Andrew Lunn , Florian Fainelli , Vladimir Oltean , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Heiner Kallweit , Matthias Brugger , AngeloGioacchino Del Regno , linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, upstream@airoha.com Subject: Re: [net-next PATCH v8 3/4] net: dsa: Add Airoha AN8855 5-Port Gigabit DSA Switch driver References: <20241204072427.17778-1-ansuelsmth@gmail.com> <20241204072427.17778-4-ansuelsmth@gmail.com> <20241204100922.0af25d7e@fedora.home> <67501d7b.050a0220.3390ac.353c@mx.google.com> <675021f1.050a0220.34c00a.3a0c@mx.google.com> Precedence: bulk X-Mailing-List: devicetree@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: On Wed, Dec 04, 2024 at 10:00:41AM +0000, Russell King (Oracle) wrote: > On Wed, Dec 04, 2024 at 10:33:33AM +0100, Christian Marangi wrote: > > On Wed, Dec 04, 2024 at 09:24:45AM +0000, Russell King (Oracle) wrote: > > > > Added 5000 as this is present in documentation bits but CPU can only go > > > > up to 2.5. Should I drop it? Idea was to futureproof it since it really > > > > seems they added these bits with the intention of having a newer switch > > > > with more advanced ports. > > > > > > Is there any mention of supporting interfaces faster than 2500BASE-X ? > > > > > > > In MAC Layer function description, they say: > > - Support 10/100/1000/2500/5000 Mbps bit rates > > > > So in theory it can support up to that speed. > > Maybe the internal IP supports this but the SoC doesn't? > > However, I was asking about interfaces rather than speeds - so RGMII, > SGMII, 2500BASE-X... is there a mention of anything else? > I can see mention of 5g Base-R so I assume supported but in the sdk there isn't any code to configure it/I don't have any hardware. (and documentation is empty for anything PCS related for register, just block diagram) I can ask it that is expected to work tho. -- Ansuel