Kernel-4.18.0-80.el8_ucc

  • UCC (Unified Communications Controllers)

Required properties:

Required properties for network device_type:

  • mac-address : list of bytes representing the ethernet address.
  • phy-handle : The phandle for the PHY connected to this controller.

Recommended properties:

  • phy-connection-type : a string naming the controller/PHY interface type,
    i.e., “mii” (default), “rmii”, “gmii”, “rgmii”, “rgmii-id” (Internal
    Delay), “rgmii-txid” (delay on TX only), “rgmii-rxid” (delay on RX only),
    “tbi”, or “rtbi”.

Example:
ucc@2000 {
device_type = “network”;
compatible = “ucc_geth”;
cell-index = <1>;
reg = <2000 200>;
interrupts = <a0 0>;
interrupt-parent = <700>;
mac-address = [ 00 04 9f 00 23 23 ];
rx-clock = “none”;
tx-clock = “clk9”;
phy-handle = <212000>;
phy-connection-type = “gmii”;
pio-handle = <140001>;
};