* PIP Ethernet nexus. The PIP Ethernet nexus can control several data packet input/output devices. The devices have a two level grouping scheme. There may be several interfaces, and each interface may have several ports. These ports might be an individual Ethernet PHY. Properties for the PIP nexus: - compatible: "cavium,octeon-3860-pip" Compatibility with all cn3XXX, cn5XXX and cn6XXX SOCs. - reg: The base address of the PIP's register bank. - #address-cells: Must be <1>. - #size-cells: Must be <0>. Properties for PIP interfaces which is a child the PIP nexus: - compatible: "cavium,octeon-3860-pip-interface" Compatibility with all cn3XXX, cn5XXX and cn6XXX SOCs. - reg: The interface number. - #address-cells: Must be <1>. - #size-cells: Must be <0>. Properties for PIP port which is a child the PIP interface: - compatible: "cavium,octeon-3860-pip-port" Compatibility with all cn3XXX, cn5XXX and cn6XXX SOCs. - reg: The port number within the interface group. - phy-handle: Optional, see ethernet.txt file in the same directory. - rx-delay: Delay value for RGMII receive clock. Optional. Disabled if 0. Value range is 1-31, and mapping to the actual delay varies depending on HW. - tx-delay: Delay value for RGMII transmit clock. Optional. Disabled if 0. Value range is 1-31, and mapping to the actual delay varies depending on HW. Example: pip@11800a0000000 { compatible = "cavium,octeon-3860-pip"; #address-cells = <1>; #size-cells = <0>; reg = <0x11800 0xa0000000 0x0 0x2000>; interface@0 { compatible = "cavium,octeon-3860-pip-interface"; #address-cells = <1>; #size-cells = <0>; reg = <0>; /* interface */ ethernet@0 { compatible = "cavium,octeon-3860-pip-port"; reg = <0x0>; /* Port */ local-mac-address = [ 00 0f b7 10 63 60 ]; phy-handle = <&phy2>; }; ethernet@1 { compatible = "cavium,octeon-3860-pip-port"; reg = <0x1>; /* Port */ local-mac-address = [ 00 0f b7 10 63 61 ]; phy-handle = <&phy3>; }; ethernet@2 { compatible = "cavium,octeon-3860-pip-port"; reg = <0x2>; /* Port */ local-mac-address = [ 00 0f b7 10 63 62 ]; phy-handle = <&phy4>; }; ethernet@3 { compatible = "cavium,octeon-3860-pip-port"; reg = <0x3>; /* Port */ local-mac-address = [ 00 0f b7 10 63 63 ]; phy-handle = <&phy5>; }; }; interface@1 { compatible = "cavium,octeon-3860-pip-interface"; #address-cells = <1>; #size-cells = <0>; reg = <1>; /* interface */ ethernet@0 { compatible = "cavium,octeon-3860-pip-port"; reg = <0x0>; /* Port */ local-mac-address = [ 00 0f b7 10 63 64 ]; phy-handle = <&phy6>; }; }; };