# Copyright 2024 Robert Slawinski <robert.slawinski1@gmail.com>
# SPDX-License-Identifier: Apache-2.0

description: Davicom DM8806 Ethernet MAC and PHY with RMII interface

compatible: "davicom,dm8806-phy"

include: [ethernet-phy.yaml]

on-bus: mdio

properties:
  reg:
    required: true
    description: |
      5-bit PHY address for Internal PHY Registers group of Davicom DM8806 MAC
      PHY Ethernet Switch Controller, separate for each MAC PHY, build in DM8806
      and correlate with Ethenet port. DM8806 has five MAC PHY inside, but it is
      not mandatory to define all of them in device tree if there is no need to
      communicate with all of them. Each MAC PHY has its own PHY address, which
      together with Register address creates the absolute address of the
      concrete register in conrete MAC PHY acoring to Clause 22 MDIO
      communication standard. Below example shows how the PHY address and
      Register address are glued together in Internal PHY Registers group:

                        Internal PHY Registers
      Port0: (5-bit PHY Address) + (5-bit Register address) = Absolute address

      Absolute address is the address of the concrete register in MAC PHY0
      which is responsible for Ethernet Port0 in Davicom DM8806
  reg-switch:
    required: true
    description: |
      5-bit PHY address for Switch Per-Port Registers group of Davicom DM8806
      MAC PHY Ethernet Switch Controller, separate for each MAC PHY, build in
      DM8806 and correlate with Ethenet port. DM8806 has five MAC PHY inside,
      but it is not mandatory to define all of them in device tree if there is
      no need to communicate with all of them. Each MAC PHY has its own PHY
      address, which together with Register address creates the absolute address
      of the concrete register in conrete MAC PHY acoring to Clause 22 MDIO
      communication standard. Below example shows how the PHY address and
      Register address are glued together in Switch Per-Port Registers group:

                        Switch Per-Port Registers
      Port0: (5bit PHY Address) + (5bit Register address) = Absolute address

      Absolute address is the address of the concrete register in MAC PHY0
      which is responsible for Ethernet Port0 in Davicom DM8806
  reset-gpios:
    type: phandle-array
    description: GPIO connected to MAC PHY reset signal pin. Reset is active low.
  int-gpios:
    type: phandle-array
    description: GPIO for   upt signal indicating MAC PHY state change.
  davicom,interface-type:
    type: string
    required: true
    description: Which type of phy connection the mac phy is set up for
    enum:
      - "mii"
      - "rmii"