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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: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="utf-8" > 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