blob: 2d6a48507b78fc579f6288923a7af0e16c3fb5c0 [file] [log] [blame]
# Copyright (c) 2022, NXP
# SPDX-License-Identifier: Apache-2.0
description: NXP imx USDHC controller
compatible: "nxp,imx-usdhc"
include: [sdhc.yaml, pinctrl-device.yaml]
properties:
reg:
required: true
label:
required: true
data-timeout:
type: int
required: false
default: 0xF
description: |
Data timeout, as multiple of the SD clock. See DTOCV field of USDHC
read-watermark:
type: int
required: false
default: 0x80
description: |
Number of words used as read watermark level in FIFO queue for USDHC
write-watermark:
type: int
required: false
default: 0x80
description: |
Number of words used as write watermark level in FIFO queue for USDHC
max_current_330:
type: int
required: false
default: 0
description: |
Max drive current in mA at 3.3V. A value of zero indicates no maximum
is specified by the driver.
clocks:
required: true
pwr-gpios:
type: phandle-array
required: false
description: |
Power pin
This pin defaults to active high when consumed by the SD card. The
property value should ensure the flags properly describe the signal
that is presented to the driver.
cd-gpios:
type: phandle-array
required: false
description: |
Detect pin
This pin defaults to active low when produced by the SD card. The
property value should ensure the flags properly describe the signal
that is presented to the driver.
no-1-8-v:
type: boolean
required: false
description: |
When the external SD card circuit does not support 1.8V, add this
property to disable 1.8v card voltage of SD card controller.
detect-dat3:
type: boolean
required: false
description: |
Enable the host to detect an SD card via the DAT3 line of the SD card
connection. Requires the board to define a function to pull DAT3 low or
high using pullup/pulldown resistors.