renesas,rcar-mmc

Vendor: Renesas Electronics Corporation

Description

These nodes are “sd” bus nodes.

Renesas R-Car eMMC

Properties

Properties not inherited from the base binding file.

Name

Type

Details

max-current-330

int

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

max-current-300

int

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

max-current-180

int

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

max-bus-freq

int

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

This property is required.

Default value: 400000

min-bus-freq

int

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

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

The host controller supports HS200 at 1.8V

mmc-hs400-1_8v

boolean

The host controller supports HS400 at 1.8V

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

reset-names

string-array

Name of each reset

non-removable

boolean

Non-removable slots (like eMMC), which are assumed to always be present,
will affect the `sdhc_card_present` call. This call will always return
true if this property exists for the node.

mmc-sdr104-support

boolean

cd-gpios

phandle-array

Card Detect pin

pwr-gpios

phandle-array

Power pin

vmmc-supply

phandle

Supply for the card power

vqmmc-supply

phandle

Supply for the bus IO line power, such as a level shifter.
If the level shifter is controlled by a GPIO line, this shall
be modeled as a "regulator-fixed" with a GPIO line for
switching the level shifter on/off.

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