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charset="us-ascii" Content-Transfer-Encoding: quoted-printable The following device tree specifies a shared mdio. The ffec driver uses miibus. When there is a shared mdio, one of the device instances will not be able t= o properly configure the PHY, as it needs to use the other devices resource= to read/write the PHY. &fec1 { pinctrl-names =3D "default"; pinctrl-0 =3D <&pinctrl_fec1>; phy-mode =3D "rgmii-id"; phy-handle =3D <ðphy0>; fsl,magic-packet; status =3D "okay"; mdio { #address-cells =3D <1>; #size-cells =3D <0>; ethphy0: ethernet-phy@0 { compatible =3D "ethernet-ph= y-ieee802.3-c22"; reg =3D <0>; }; ethphy1: ethernet-phy@1 { compatible =3D "ethernet-ph= y-ieee802.3-c22"; reg =3D <1>; }; }; }; &fec2 { pinctrl-names =3D "default"; pinctrl-0 =3D <&pinctrl_fec2>; phy-mode =3D "rgmii-txid"; phy-handle =3D <ðphy1>; phy-supply =3D <®_fec2_supply>; nvmem-cells =3D <&fec_mac1>; nvmem-cell-names =3D "mac-address"; rx-internal-delay-ps =3D <2000>; fsl,magic-packet; status =3D "okay"; }; Does FreeBSD have any plans for supporting hardware that specifies a shared= mdio in the dtb? 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The following devic= e tree specifies a shared mdio.

The ffec driver use= s miibus.

When there is a sha= red mdio, one of the device instances will not be able to properly configur= e the PHY, as it needs to use the other devices resource to read/write the = PHY.

 

&fec1 {

   &= nbsp;            pin= ctrl-names =3D "default";

   &= nbsp;            pin= ctrl-0 =3D <&pinctrl_fec1>;

   &= nbsp;            phy= -mode =3D "rgmii-id";

   &= nbsp;            phy= -handle =3D <&ethphy0>;

   &= nbsp;            fsl= ,magic-packet;

   &= nbsp;            sta= tus =3D "okay";

 

   &= nbsp;            mdi= o {

   &= nbsp;           &nbs= p;            &= nbsp;   #address-cells =3D <1>;

   &= nbsp;           &nbs= p;            &= nbsp;   #size-cells =3D <0>;

 

   &= nbsp;           &nbs= p;            &= nbsp;   ethphy0: ethernet-phy@0 {

   &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;       compatible =3D "ethernet-phy-ie= ee802.3-c22";

   &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;       reg =3D <0>;=

   &= nbsp;           &nbs= p;            &= nbsp;   };

 

   &= nbsp;           &nbs= p;            &= nbsp;   ethphy1: ethernet-phy@1 {

   &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;       compatible =3D "ethernet-phy-ie= ee802.3-c22";

   &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;       reg =3D <1>;=

   &= nbsp;           &nbs= p;            &= nbsp;   };

   &= nbsp;            };<= o:p>

};

 

&fec2 {

   &= nbsp;            pin= ctrl-names =3D "default";

   &= nbsp;            pin= ctrl-0 =3D <&pinctrl_fec2>;

   &= nbsp;            phy= -mode =3D "rgmii-txid";

   &= nbsp;            phy= -handle =3D <&ethphy1>;

   &= nbsp;            phy= -supply =3D <&reg_fec2_supply>;

   &= nbsp;            nvm= em-cells =3D <&fec_mac1>;

   &= nbsp;            nvm= em-cell-names =3D "mac-address";

   &= nbsp;            rx-= internal-delay-ps =3D <2000>;

   &= nbsp;            fsl= ,magic-packet;

   &= nbsp;            sta= tus =3D "okay";

};

 

Does FreeBSD have a= ny plans for supporting hardware that specifies a shared mdio in the dtb?

Just knowing the ge= neral approach being considered would be helpful.

 

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