dts/bindings/espi/nuvoton,npcx-espi.yaml

# Copyright (c) 2020 Nuvoton Technology Corporation.
# SPDX-License-Identifier: Apache-2.0

description: Nuvoton, NPCX-eSPI node

compatible: "nuvoton,npcx-espi"

include: [espi-controller.yaml, pinctrl-device.yaml]

properties:
  reg:
    description: mmio register space
    required: true

  clocks:
    required: true
    description: configurations of device source clock controller

  pinctrl-0:
    required: true

  pinctrl-names:
    required: true

  espi-rst-wui:
    type: phandle
    required: true
    description: |
        Mapping table between Wake-Up Input (WUI) and ESPI_RST signal.

        For example the WUI mapping on NPCX7 would be
           espi-rst-wui = <&wui_cr_sin1>;

  rx-plsize:
    type: int
    required: true
    description: The maximum receive channel payload size.

  tx-plsize:
    type: int
    required: true
    description: The maximum transmit channel payload size.

  vw-index-extend-set:
    type: array
    description: |
      Array of encoded virtual wire information
      Update the vw index in group setting. Here is the format.
      < ESPI_NPCX_VW_EX_VAL(direction, group_number, index) >
      direction: 1 for ESPI_CONTROLLER_TO_TARGET and 0 for ESPI_TARGET_TO_CONTROLLER.
      group_number: The number of VWEVMS or VWEVSM.
      index: The index to be replaced.

      For example, update the index of VWEVMS6 into 0x4A and the index of VWEVSM8 into 0x53
        vw-index-extend-set = < ESPI_NPCX_VW_EX_VAL(1, 6, 0x4A)
                                ESPI_NPCX_VW_EX_VAL(0, 8, 0x53) >