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.
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