diff --git a/Documentation/devicetree/bindings/net/dsa/lantiq-gswip.txt b/Documentation/devicetree/bindings/net/dsa/lantiq-gswip.txt new file mode 100644 index 000000000000..a089f5856778 --- /dev/null +++ b/Documentation/devicetree/bindings/net/dsa/lantiq-gswip.txt @@ -0,0 +1,141 @@ +Lantiq GSWIP Ethernet switches +================================== + +Required properties for GSWIP core: + +- compatible : "lantiq,xrx200-gswip" for the embedded GSWIP in the + xRX200 SoC +- reg : memory range of the GSWIP core registers + : memory range of the GSWIP MDIO registers + : memory range of the GSWIP MII registers + +See Documentation/devicetree/bindings/net/dsa/dsa.txt for a list of +additional required and optional properties. + + +Required properties for MDIO bus: +- compatible : "lantiq,xrx200-mdio" for the MDIO bus inside the GSWIP + core of the xRX200 SoC and the PHYs connected to it. + +See Documentation/devicetree/bindings/net/mdio.txt for a list of additional +required and optional properties. + + +Required properties for GPHY firmware loading: +- compatible : "lantiq,gphy-fw" and "lantiq,xrx200-gphy-fw", + "lantiq,xrx200a1x-gphy-fw", "lantiq,xrx200a2x-gphy-fw", + "lantiq,xrx300-gphy-fw", or "lantiq,xrx330-gphy-fw" + for the loading of the firmware into the embedded + GPHY core of the SoC. +- lantiq,rcu : reference to the rcu syscon + +The GPHY firmware loader has a list of GPHY entries, one for each +embedded GPHY + +- reg : Offset of the GPHY firmware register in the RCU + register range +- resets : list of resets of the embedded GPHY +- reset-names : list of names of the resets + +Example: + +Ethernet switch on the VRX200 SoC: + +gswip: gswip@E108000 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "lantiq,xrx200-gswip"; + reg = < 0xE108000 0x3000 /* switch */ + 0xE10B100 0x70 /* mdio */ + 0xE10B1D8 0x30 /* mii */ + >; + dsa,member = <0 0>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + label = "lan3"; + phy-mode = "rgmii"; + phy-handle = <&phy0>; + }; + + port@1 { + reg = <1>; + label = "lan4"; + phy-mode = "rgmii"; + phy-handle = <&phy1>; + }; + + port@2 { + reg = <2>; + label = "lan2"; + phy-mode = "internal"; + phy-handle = <&phy11>; + }; + + port@4 { + reg = <4>; + label = "lan1"; + phy-mode = "internal"; + phy-handle = <&phy13>; + }; + + port@5 { + reg = <5>; + label = "wan"; + phy-mode = "rgmii"; + phy-handle = <&phy5>; + }; + + port@6 { + reg = <0x6>; + label = "cpu"; + ethernet = <ð0>; + }; + }; + + mdio@0 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "lantiq,xrx200-mdio"; + reg = <0>; + + phy0: ethernet-phy@0 { + reg = <0x0>; + }; + phy1: ethernet-phy@1 { + reg = <0x1>; + }; + phy5: ethernet-phy@5 { + reg = <0x5>; + }; + phy11: ethernet-phy@11 { + reg = <0x11>; + }; + phy13: ethernet-phy@13 { + reg = <0x13>; + }; + }; + + gphy-fw { + compatible = "lantiq,xrx200-gphy-fw", "lantiq,gphy-fw"; + lantiq,rcu = <&rcu0>; + + gphy@20 { + reg = <0x20>; + + resets = <&reset0 31 30>; + reset-names = "gphy"; + }; + + gphy@68 { + reg = <0x68>; + + resets = <&reset0 29 28>; + reset-names = "gphy"; + }; + }; +};