Kernel-4.18.0-80.el8_micrel

Micrel PHY properties.

These properties cover the base properties Micrel PHYs.

Optional properties:

• micrel,led-mode : LED mode value to set for PHYs with configurable LEDs.

  Configure the LED mode with single value. The list of PHYs and the
  bits that are currently supported:

  KSZ8001: register 0x1e, bits 15..14
  KSZ8041: register 0x1e, bits 15..14
  KSZ8021: register 0x1f, bits 5..4
  KSZ8031: register 0x1f, bits 5..4
  KSZ8051: register 0x1f, bits 5..4
  KSZ8081: register 0x1f, bits 5..4
  KSZ8091: register 0x1f, bits 5..4

  See the respective PHY datasheet for the mode values.

• micrel,rmii-reference-clock-select-25-mhz: RMII Reference Clock Select

                   bit selects 25 MHz mode
  

  Setting the RMII Reference Clock Select bit enables 25 MHz rather
  than 50 MHz clock mode.

  Note that this option in only needed for certain PHY revisions with a
  non-standard, inverted function of this configuration bit.
  Specifically, a clock reference (“rmii-ref” below) is always needed to
  actually select a mode.

• clocks, clock-names: contains clocks according to the common clock bindings.

  supported clocks:

  • KSZ8021, KSZ8031, KSZ8081, KSZ8091: “rmii-ref”: The RMII reference
    input clock. Used to determine the XI input clock.

• micrel,fiber-mode: If present the PHY is configured to operate in fiber mode

  Some PHYs, such as the KSZ8041FTL variant, support fiber mode, enabled
  by the FXEN boot strapping pin. It can’t be determined from the PHY
  registers whether the PHY is in fiber mode, so this boolean device tree
  property can be used to describe it.

  In fiber mode, auto-negotiation is disabled and the PHY can only work in
  100base-fx (full and half duplex) modes.