dts/bindings/sdhc/espressif,esp32-sdhc-slot.yaml

# Copyright (c) 2024 Espressif Systems (Shanghai) Co., Ltd.
# SPDX-License-Identifier: Apache-2.0

description: Espressif ESP32 SDHC controller slot

compatible: "espressif,esp32-sdhc-slot"

include: [sdhc.yaml, pinctrl-device.yaml]

properties:
  reg:
    required: true

  pinctrl-0:
    required: true

  pinctrl-names:
    required: true

  bus-width:
    type: int
    enum:
      - 1
      - 4
    default: 4
    description: SD bus width in bits

  clk-pin:
    type: int
    description: |
      Clock pin for ESP32 and SoC models with fixed pins for SDIO.
      For devices with GPIO matrix support, configuration shall be done
      using pin control (pinctrl-0 field).

  cmd-pin:
    type: int
    description: |
      Command pin for ESP32 and SoC models with fixed pins for SDIO.
      For devices with GPIO matrix support, configuration shall be done
      using pin control (pinctrl-0 field).

  d0-pin:
    type: int
    description: |
      Data 0 pin for ESP32 and SoC models with fixed pins for SDIO.
      For devices with GPIO matrix support, configuration shall be done
      using pin control (pinctrl-0 field).

  d1-pin:
    type: int
    description: |
      Data 1 pin for ESP32 and SoC models with fixed pins for SDIO.
      For devices with GPIO matrix support, configuration shall be done
      using pin control (pinctrl-0 field).

  d2-pin:
    type: int
    description: |
      Data 2 pin for ESP32 and SoC models with fixed pins for SDIO.
      For devices with GPIO matrix support, configuration shall be done
      using pin control (pinctrl-0 field).

  d3-pin:
    type: int
    description: |
      Data 3 pin for ESP32 and SoC models with fixed pins for SDIO.
      For devices with GPIO matrix support, configuration shall be done
      using pin control (pinctrl-0 field).

  pwr-gpios:
    type: phandle-array
    description: |
      Power pin
      This is a configurable pin to deliver power supply to the SD card.
      It is configured as a GPIO in order to execute power toggles and
      reinitialize the SD slave when necessary.