st,stm32-sdmmc
Vendor: STMicroelectronics
Note
An implementation of a driver matching this compatible is available in drivers/disk/sdmmc_stm32.c.
Description
stm32 sdmmc disk access
Properties
Properties not inherited from the base binding file.
Name |
Type |
Details |
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Reset information
This property is required. |
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Pin configuration/s for the first state. Content is specific to the
selected pin controller driver implementation.
This property is required. |
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Names for the provided states. The number of names needs to match the
number of states.
This property is required. |
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Card Detect pin
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Power pin
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bus width for SDMMC access, defaults to the minimum necessary
number of bus lines
Default value: Legal values: |
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Clock division factor for SDMMC. Typically the clock operates at 25MHz so
a division factor of 2 would be 25MHz / 2 = 12.5MHz.
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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.
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Pin configuration/s for the second state. See pinctrl-0.
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Pin configuration/s for the third state. See pinctrl-0.
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Pin configuration/s for the fourth state. See pinctrl-0.
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Pin configuration/s for the fifth state. See pinctrl-0.
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Name of each reset
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Deprecated properties not inherited from the base binding file.
(None)
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.
Name |
Type |
Details |
|---|---|---|
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Clock gate information
This property is required. |
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register space
This property is required. See Important properties for more information. |
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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>;
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DMA channel name. If DMA should be used, expected value is "tx", "rx".
For example
dma-names = "tx", "rx";
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indicates the operational status of a device
Legal values: See Important properties for more information. |
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compatible strings
This property is required. See Important properties for more information. |
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name of each register space
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interrupts for device
See Important properties for more information. |
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extended interrupt specifier for device
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name of each interrupt
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phandle to interrupt controller node
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Human readable string describing the device (used as device_get_binding() argument)
See Important properties for more information. This property is deprecated. |
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name of each clock
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number of address cells in reg property
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number of size cells in reg property
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IO channels specifiers
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Provided names of IO channel specifiers
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mailbox / IPM channels specifiers
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Provided names of mailbox / IPM channel specifiers
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Power domain specifiers
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Provided names of power domain specifiers
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Number of cells in power-domains property
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Do not initialize device automatically on boot. Device should be manually
initialized using device_init().
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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.
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Automatically configure the device for runtime power management after the
init function runs.
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List of power states that will disable this device power.
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