st,stm32-sdmmc

Vendor: STMicroelectronics

Description

stm32 sdmmc disk access

Properties

Properties not inherited from the base binding file.

Name

Type

Details

pinctrl-0

phandles

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

This property is required.

pinctrl-1

phandles

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

pinctrl-2

phandles

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

pinctrl-3

phandles

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

pinctrl-4

phandles

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

pinctrl-names

string-array

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

This property is required.

resets

phandle-array

Reset information

This property is required.

reset-names

string-array

Name of each reset

cd-gpios

phandle-array

Card Detect pin

pwr-gpios

phandle-array

Power pin

bus-width

int

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

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

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.