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Thu, 10 Sep 2026 05:11:16 -0700 (PDT) Received: from matheus-note.localnet ([2804:7f0:84b3:2201:fb27:8354:17d:2bcc]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-3339bbf1feesm53156354eec.26.2026.09.10.05.11.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 10 Sep 2026 05:11:15 -0700 (PDT) From: Matheus Sampaio Queiroga To: andrew@lunn.ch Cc: 25181214217@stu.xidian.edu.cn, andrew+netdev@lunn.ch, angelogioacchino.delregno@collabora.com, b.larsson@gmx.com, cjd@cjdns.fr, conor+dt@kernel.org, davem@davemloft.net, devicetree@vger.kernel.org, dong100@mucse.com, edumazet@google.com, enelsonmoore@gmail.com, han.junyang@zte.com.cn, hkallweit1@gmail.com, jes@trained-monkey.org, krzk+dt@kernel.org, kuba@kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org, matthias.bgg@gmail.com, maxime.chevallier@bootlin.com, naseefkm@gmail.com, netdev@vger.kernel.org, p.zabel@pengutronix.de, pabeni@redhat.com, robh@kernel.org, vadim.fedorenko@linux.dev, wangruikang@iscas.ac.cn, xuanzhuo@linux.alibaba.com Subject: Re: [PATCH net-next 1/2] dt-bindings: net: econet: add EN751221 ethernet Date: Thu, 10 Sep 2026 09:11:01 -0300 Message-ID: <0bwM5hNxQhuX7GLiig7ffg@gmail.com> In-Reply-To: MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="utf-8" X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260910_051118_363048_B123CA2D X-CRM114-Status: UNSURE ( 9.60 ) X-CRM114-Notice: Please train this message. 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 > That is a very unusual phy-mode. Is there a reason this is used in the > example? > > Andrew the GDM1 and GDM2 behave something similar to the newer Airoha, we have an MT7530 connected to the GDM1 as internal mode, and the GDM2 is also an internal one that communicates with the xPON and xDSL subsystem. the en751221 has two mt7530 switches, the dsa0 limited to 10/100Mbps and a dsa2 1GbE connected to port 5 of the dsa1 in cascaded mode, but it varies from chip to chip