dts: Add SDHC SDIO configuration for STM32 (e052fd70) · Commits · Wenxi XU / zephyr

dts/bindings/sdhc/st,stm32-sdio.yaml

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		# Copyright (c) 2025 EXALT Technologies.
		#
		# SPDX-License-Identifier: Apache-2.0

		title: STM32 SDIO Host Controller

		description: Common properties for STM32 SDIO Host Controller peripheral.

		compatible: "st,stm32-sdio"

		bus: sd

		include: [sdhc.yaml, pinctrl-device.yaml, reset-device.yaml]

		properties:
		hw-flow-control:
		type: boolean
		description: Set to enable RTS/CTS flow control at boot time.

		sdhi-on-gpios:
		type: phandle-array
		description: GPIO used to enable/disable the SDHI.

		cd-gpios:
		type: phandle-array
		description: Card detect pin.

		clocks:
		required: true

		reg:
		required: true

		pinctrl-0:
		required: true

		pinctrl-names:
		required: true

		support-1-8-v:
		type: boolean
		description: \|
		When defined, it indicates that the external SDIO circuit supports 1.8V signaling.

		bus-width:
		type: int
		default: 1
		description: \|
		Bus width for SDMMC access, defaults to the minimum necessary
		number of bus lines.
		enum:
		- 1
		- 4
		- 8

		clk-div:
		type: int
		default: 1
		description: \|
		Clock division factor for SDMMC. Typically the clock operates at 25MHz so
		a division factor of 2 would be 25MHz / 2 = 12.5MHz.
		The valid range is 0 to 1023.