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