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.. dtcompatible:: espressif,esp32-sdhc-slot
.. _dtbinding_espressif_esp32_sdhc_slot:

espressif,esp32-sdhc-slot
#########################

Vendor: :ref:`Espressif Systems <dt_vendor_espressif>`

.. note::

   An implementation of a driver matching this compatible is available in
   :zephyr_file:`drivers/sdhc/sdhc_esp32.c`.

Description
***********

These nodes are "sd" bus nodes.

.. code-block:: none

   Espressif ESP32 SDHC controller slot

Properties
**********

.. tabs::

   .. group-tab:: Node specific properties

      Properties not inherited from the base binding file.

      .. list-table::
         :widths: 1 1 4
         :header-rows: 1

         * - Name
           - Type
           - Details

         * - ``pinctrl-0``
           - ``phandles``
           - .. code-block:: none

                Pin configuration/s for the first state. Content is specific to the
                selected pin controller driver implementation.



             This property is **required**.

         * - ``pinctrl-names``
           - ``string-array``
           - .. code-block:: none

                Names for the provided states. The number of names needs to match the
                number of states.



             This property is **required**.

         * - ``bus-width``
           - ``int``
           - .. code-block:: none

                SD bus width in bits


             Default value: ``4``

             Legal values: ``1``, ``4``

         * - ``clk-pin``
           - ``int``
           - .. code-block:: none

                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``
           - ``int``
           - .. code-block:: none

                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``
           - ``int``
           - .. code-block:: none

                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``
           - ``int``
           - .. code-block:: none

                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``
           - ``int``
           - .. code-block:: none

                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``
           - ``int``
           - .. code-block:: none

                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``
           - ``phandle-array``
           - .. code-block:: none

                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.



         * - ``max-current-330``
           - ``int``
           - .. code-block:: none

                Max drive current in mA at 3.3V. A value of zero indicates no maximum
                is specified by the driver.



         * - ``max-current-300``
           - ``int``
           - .. code-block:: none

                Max drive current in mA at 3.0V. A value of zero indicates no maximum
                is specified by the driver.



         * - ``max-current-180``
           - ``int``
           - .. code-block:: none

                Max drive current in mA at 1.8V. A value of zero indicates no maximum
                is specified by the driver.



         * - ``max-bus-freq``
           - ``int``
           - .. code-block:: none

                Maximum bus frequency for SD card. This should be the highest frequency
                the SDHC is capable of negotiating with cards on the bus.



             Default value: ``400000``

         * - ``min-bus-freq``
           - ``int``
           - .. code-block:: none

                Minimum bus frequency for SD card. This should be the frequency that
                cards first will select when attached to the SDHC bus



             Default value: ``400000``

         * - ``power-delay-ms``
           - ``int``
           - .. code-block:: none

                time in ms for SDHC to delay when toggling power to the SD card. This
                delay gives the card time to power up or down fully



             Default value: ``500``

         * - ``mmc-hs200-1_8v``
           - ``boolean``
           - .. code-block:: none

                The host controller supports HS200 at 1.8V



         * - ``mmc-hs400-1_8v``
           - ``boolean``
           - .. code-block:: none

                The host controller supports HS400 at 1.8V



         * - ``pinctrl-1``
           - ``phandles``
           - .. code-block:: none

                Pin configuration/s for the second state. See pinctrl-0.



         * - ``pinctrl-2``
           - ``phandles``
           - .. code-block:: none

                Pin configuration/s for the third state. See pinctrl-0.



         * - ``pinctrl-3``
           - ``phandles``
           - .. code-block:: none

                Pin configuration/s for the fourth state. See pinctrl-0.



         * - ``pinctrl-4``
           - ``phandles``
           - .. code-block:: none

                Pin configuration/s for the fifth state. See pinctrl-0.





   .. group-tab:: Deprecated node specific properties

      Deprecated properties not inherited from the base binding file.

      (None)

   .. group-tab:: Base properties

      Properties inherited from the base binding file, which defines
      common properties that may be set on many nodes. Not all of these
      may apply to the "espressif,esp32-sdhc-slot" compatible.

      .. list-table::
         :widths: 1 1 4
         :header-rows: 1

         * - Name
           - Type
           - Details

         * - ``reg``
           - ``array``
           - .. code-block:: none

                register space


             This property is **required**.

             See :ref:`zephyr:dt-important-props` for more information.

         * - ``status``
           - ``string``
           - .. code-block:: none

                indicates the operational status of a device


             Legal values: ``'ok'``, ``'okay'``, ``'disabled'``, ``'reserved'``, ``'fail'``, ``'fail-sss'``

             See :ref:`zephyr:dt-important-props` for more information.

         * - ``compatible``
           - ``string-array``
           - .. code-block:: none

                compatible strings


             This property is **required**.

             See :ref:`zephyr:dt-important-props` for more information.

         * - ``reg-names``
           - ``string-array``
           - .. code-block:: none

                name of each register space


         * - ``interrupts``
           - ``array``
           - .. code-block:: none

                interrupts for device


             See :ref:`zephyr:dt-important-props` for more information.

         * - ``interrupts-extended``
           - ``compound``
           - .. code-block:: none

                extended interrupt specifier for device


         * - ``interrupt-names``
           - ``string-array``
           - .. code-block:: none

                name of each interrupt


         * - ``interrupt-parent``
           - ``phandle``
           - .. code-block:: none

                phandle to interrupt controller node


         * - ``label``
           - ``string``
           - .. code-block:: none

                Human readable string describing the device (used as device_get_binding() argument)



             See :ref:`zephyr:dt-important-props` for more information.

             This property is **deprecated**.

         * - ``clocks``
           - ``phandle-array``
           - .. code-block:: none

                Clock gate information


         * - ``clock-names``
           - ``string-array``
           - .. code-block:: none

                name of each clock


         * - ``#address-cells``
           - ``int``
           - .. code-block:: none

                number of address cells in reg property


         * - ``#size-cells``
           - ``int``
           - .. code-block:: none

                number of size cells in reg property


         * - ``dmas``
           - ``phandle-array``
           - .. code-block:: none

                DMA channels specifiers


         * - ``dma-names``
           - ``string-array``
           - .. code-block:: none

                Provided names of DMA channel specifiers


         * - ``io-channels``
           - ``phandle-array``
           - .. code-block:: none

                IO channels specifiers


         * - ``io-channel-names``
           - ``string-array``
           - .. code-block:: none

                Provided names of IO channel specifiers


         * - ``mboxes``
           - ``phandle-array``
           - .. code-block:: none

                mailbox / IPM channels specifiers


         * - ``mbox-names``
           - ``string-array``
           - .. code-block:: none

                Provided names of mailbox / IPM channel specifiers


         * - ``power-domains``
           - ``phandle-array``
           - .. code-block:: none

                Power domain specifiers


         * - ``power-domain-names``
           - ``string-array``
           - .. code-block:: none

                Provided names of power domain specifiers


         * - ``#power-domain-cells``
           - ``int``
           - .. code-block:: none

                Number of cells in power-domains property


         * - ``zephyr,deferred-init``
           - ``boolean``
           - .. code-block:: none

                Do not initialize device automatically on boot. Device should be manually
                initialized using device_init().



         * - ``wakeup-source``
           - ``boolean``
           - .. code-block:: none

                Property to identify that a device can be used as wake up source.

                When this property is provided a specific flag is set into the
                device that tells the system that the device is capable of
                wake up the system.

                Wake up capable devices are disabled (interruptions will not wake up
                the system) by default but they can be enabled at runtime if necessary.



         * - ``zephyr,pm-device-runtime-auto``
           - ``boolean``
           - .. code-block:: none

                Automatically configure the device for runtime power management after the
                init function runs.



         * - ``zephyr,disabling-power-states``
           - ``phandles``
           - .. code-block:: none

                List of power states that will disable this device power.