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It is a PCI device, part of the larger ENETC root complex. As a result, the ethernet-switch node is a sub-node @@ -211,3 +212,94 @@ Example: }; }; }; + +The VSC7513 and VSC7514 switches can be controlled internally via the MIPS +processor. The VSC7511 and VSC7512 don't have this internal processor, but all +four chips can be controlled externally through SPI with the following required +properties: + +- compatible: + Can be "mscc,vsc7511", "mscc,vsc7512", "mscc,vsc7513", or + "mscc,vsc7514". + +Supported phy modes for all chips are: + +* phy_mode = "sgmii": on ports 0, 1, 2, 3 + +The VSC7512 and 7514 also support: + +* phy_mode = "sgmii": on ports 4, 5, 6, 7 +* phy_mode = "qsgmii": on ports 7, 8, 10 + +Example for control from a BeagleBone Black + +&spi0 { + #address-cells = <1>; + #size-cells = <0>; + + ethernet-switch@0 { + compatible = "mscc,vsc7512"; + spi-max-frequency = <250000>; + reg = <0>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + ethernet = <&mac>; + phy-mode = "sgmii"; + + fixed-link { + speed = <100>; + full-duplex; + }; + }; + + port@1 { + reg = <1>; + label = "swp1"; + phy-handle = <&sw_phy1>; + phy-mode = "sgmii"; + }; + + port@2 { + reg = <2>; + label = "swp2"; + phy-handle = <&sw_phy2>; + phy-mode = "sgmii"; + }; + + port@3 { + reg = <3>; + label = "swp3"; + phy-handle = <&sw_phy3>; + phy-mode = "sgmii"; + }; + }; + + mdio { + #address-cells = <1>; + #size-cells = <0>; + + sw_phy1: ethernet-phy@1 { + #address-cells = <1>; + #size-cells = <0>; + reg = <0x1>; + }; + + sw_phy2: ethernet-phy@2 { + #address-cells = <1>; + #size-cells = <0>; + reg = <0x2>; + }; + + sw_phy3: ethernet-phy@3 { + #address-cells = <1>; + #size-cells = <0>; + reg = <0x3>; + }; + }; + }; +}; -- 2.25.1