Kernel-4.18.0-80.el8_brcm,mdio-mux-bus-pci

• Broadcom NS2 PCIe PHY binding document

Required bus properties:

• reg: MDIO Bus number for the MDIO interface
• #address-cells: must be 1
• #size-cells: must be 0

Required PHY properties:

• compatible: should be “brcm,ns2-pcie-phy”
• reg: MDIO Phy ID for the MDIO interface
• #phy-cells: must be 0

This is a child bus node of “brcm,mdio-mux-iproc” node.

Example:

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>;
};

};