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x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-GND-Sasl: kory.maincent@bootlin.com X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250107_052613_028801_2A32B74A X-CRM114-Status: GOOD ( 17.76 ) 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 On Thu, 2 Jan 2025 18:03:52 +0100 Oleksij Rempel wrote: > On Thu, Jan 02, 2025 at 10:48:05AM +0000, Russell King (Oracle) wrote: > > On Sun, Dec 22, 2024 at 07:54:37PM +0100, Oleksij Rempel wrote: =20 > > > Here is updated version: > > >=20 > > > ports { > > > /* 1000BaseT Port with Ethernet and simple PoE */ > > > port0: ethernet-port@0 { > > > reg =3D <0>; /* Port index */ > > > label =3D "ETH0"; /* Physical label on the device */ > > > connector =3D "RJ45"; /* Connector type */ > > > supported-modes =3D <10BaseT 100BaseTX 1000BaseT>; /* Support= ed > > > modes */ > > >=20 > > > transformer { > > > model =3D "ABC123"; /* Transformer model number */ > > > manufacturer =3D "TransformerCo"; /* Manufacturer name */ > > >=20 > > > pairs { > > > pair@0 { > > > name =3D "A"; /* Pair A */ > > > pins =3D <1 2>; /* Connector pins */ > > > phy-mapping =3D ; /* PHY pin > > > mapping */ center-tap =3D "CT0"; /* Central tap identifier */ > > > pse-negative =3D ; /* CT0 connected to G= ND */ > > > }; > > > pair@1 { > > > name =3D "B"; /* Pair B */ > > > pins =3D <3 6>; /* Connector pins */ > > > phy-mapping =3D ; > > > center-tap =3D "CT1"; /* Central tap identifier */ > > > pse-positive =3D ; /* CT1 connected to > > > PSE_OUT0 */ }; > > > pair@2 { > > > name =3D "C"; /* Pair C */ > > > pins =3D <4 5>; /* Connector pins */ > > > phy-mapping =3D ; /* PHY > > > connection only */ center-tap =3D "CT2"; /* Central tap identifier */ > > > /* No power connection to CT2 */ > > > }; > > > pair@3 { > > > name =3D "D"; /* Pair D */ > > > pins =3D <7 8>; /* Connector pins */ > > > phy-mapping =3D ; /* PHY > > > connection only */ center-tap =3D "CT3"; /* Central tap identifier */ > > > /* No power connection to CT3 */ > > > }; > > > }; > > > }; =20 Couldn't we begin with something simple like the following and add all the transformers and pairs information as you described later if the community = feels we need it? mdis { /* 1000BaseT Port with Ethernet and PoE */ mdi0: ethernet-mdi@0 { reg =3D <0>; /* Port index */ label =3D "ETH0"; /* Physical label on the device */ connector =3D "RJ45"; /* Connector type */ supported-modes =3D <10BaseT 100BaseTX 1000BaseT>; /* Supported mod= es */ lanes =3D <2>; variant =3D "MDI-X"; /* MDI or MDI-X */ pse =3D <&pse1>; }; }; We can also add led, thermal and fuse subnodes later. Let's begin with something simple for the initial support, considering that it has places for additional details in the future. Regards, --=20 K=C3=B6ry Maincent, Bootlin Embedded Linux and kernel engineering https://bootlin.com