:orphan:
.. raw:: html
.. dtcompatible:: st,stm32-sdmmc
.. _dtbinding_st_stm32_sdmmc:
st,stm32-sdmmc
##############
Vendor: :ref:`STMicroelectronics `
Description
***********
.. code-block:: none
stm32 sdmmc disk access
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
* - ``resets``
- ``phandle-array``
- .. code-block:: none
Reset information
This property is **required**.
* - ``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**.
* - ``cd-gpios``
- ``phandle-array``
- .. code-block:: none
Card Detect pin
* - ``pwr-gpios``
- ``phandle-array``
- .. code-block:: none
Power pin
* - ``bus-width``
- ``int``
- .. code-block:: none
bus width for SDMMC access, defaults to the minimum necessary
number of bus lines
Default value: ``1``
Legal values: ``1``, ``4``, ``8``
* - ``clk-div``
- ``int``
- .. code-block:: none
Clock division factor for SDMMC. Typically the clock operates at 25MHz so
a division factor of 2 would be 25MHz / 2 = 12.5MHz.
* - ``idma``
- ``boolean``
- .. code-block:: none
SDMMC device has an internal DMA. Internal DMA doesn't require any additional
configuration using "dmas" property.
Delete this property to use interrupt driven mode.
* - ``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.
* - ``reset-names``
- ``string-array``
- .. code-block:: none
Name of each reset
.. 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 "st,stm32-sdmmc" compatible.
.. list-table::
:widths: 1 1 4
:header-rows: 1
* - Name
- Type
- Details
* - ``clocks``
- ``phandle-array``
- .. code-block:: none
Clock gate information
This property is **required**.
* - ``reg``
- ``array``
- .. code-block:: none
register space
This property is **required**.
See :ref:`dt-important-props` for more information.
* - ``dmas``
- ``phandle-array``
- .. code-block:: none
Optional DMA channel specifier. If DMA should be used, specifier should
hold a phandle reference to the dma controller, the channel number,
the slot number, channel configuration and finally features.
Only priority bits are used in the configuration. There are no feature
flags.
For example dmas for TX/RX on SDMMC
dmas = <&dma2 4 6 0x30000 0x00>, <&dma2 4 3 0x30000 0x00>;
* - ``dma-names``
- ``string-array``
- .. code-block:: none
DMA channel name. If DMA should be used, expected value is "tx", "rx".
For example
dma-names = "tx", "rx";
* - ``status``
- ``string``
- .. code-block:: none
indicates the operational status of a device
Legal values: ``'ok'``, ``'okay'``, ``'disabled'``, ``'reserved'``, ``'fail'``, ``'fail-sss'``
See :ref:`dt-important-props` for more information.
* - ``compatible``
- ``string-array``
- .. code-block:: none
compatible strings
This property is **required**.
See :ref:`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:`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:`dt-important-props` for more information.
This property is **deprecated**.
* - ``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
* - ``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
* - ``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.
* - ``power-domain``
- ``phandle``
- .. code-block:: none
Power domain the device belongs to.
The device will be notified when the power domain it belongs to is either
suspended or resumed.
* - ``zephyr,pm-device-runtime-auto``
- ``boolean``
- .. code-block:: none
Automatically configure the device for runtime power management after the
init function runs.