| Properties for an MDIO bus multiplexer found in Broadcom iProc based SoCs. |
| |
| This MDIO bus multiplexer defines buses that could be internal as well as |
| external to SoCs and could accept MDIO transaction compatible to C-22 or |
| C-45 Clause. When child bus is selected, one needs to select these two |
| properties as well to generate desired MDIO transaction on appropriate bus. |
| |
| Required properties in addition to the generic multiplexer properties: |
| |
| MDIO multiplexer node: |
| - compatible: brcm,mdio-mux-iproc. |
| |
| Every non-ethernet PHY requires a compatible so that it could be probed based |
| on this compatible string. |
| |
| Optional properties: |
| - clocks: phandle of the core clock which drives the mdio block. |
| |
| Additional information regarding generic multiplexer properties can be found |
| at- Documentation/devicetree/bindings/net/mdio-mux.txt |
| |
| |
| for example: |
| mdio_mux_iproc: mdio-mux@66020000 { |
| compatible = "brcm,mdio-mux-iproc"; |
| reg = <0x66020000 0x250>; |
| #address-cells = <1>; |
| #size-cells = <0>; |
| |
| mdio@0 { |
| reg = <0x0>; |
| #address-cells = <1>; |
| #size-cells = <0>; |
| |
| pci_phy0: pci-phy@0 { |
| compatible = "brcm,ns2-pcie-phy"; |
| reg = <0x0>; |
| #phy-cells = <0>; |
| }; |
| }; |
| |
| mdio@7 { |
| reg = <0x7>; |
| #address-cells = <1>; |
| #size-cells = <0>; |
| |
| pci_phy1: pci-phy@0 { |
| compatible = "brcm,ns2-pcie-phy"; |
| reg = <0x0>; |
| #phy-cells = <0>; |
| }; |
| }; |
| mdio@10 { |
| reg = <0x10>; |
| #address-cells = <1>; |
| #size-cells = <0>; |
| |
| gphy0: eth-phy@10 { |
| reg = <0x10>; |
| }; |
| }; |
| }; |