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st,stm32-rcc-rctl

Note

An implementation of a driver matching this compatible is available in drivers/reset/reset_stm32.c.

Description

STM32 Reset and Clock Control (RCC) node.
This node is in charge of reset control for AHB (Advanced High Performance)
and APB (Advanced Peripheral) bus domains.

To specify the reset line in a peripheral, the standard resets property needs
to be used, e.g.:

  usart1: serial@xxx {
      ...
      /* Cell contains information about RCU register offset and bit */
      resets = <&rctl STM32_RESET(ABP2, 4U)>;
      ...
  };

RCC reset cells are available in
include/zephyr/dts-bindings/reset/stm32{soc_family}_reset.h header files.

Properties

Properties not inherited from the base binding file.

Name

Type

Details

#reset-cells

int

Number of cells in reset property. There must be a cell
named "id" to use the reset_dt_spec macros.

This property is required.

Constant value: 1

set-bit-to-deassert

boolean

Indicates if the driver should set bit in clear register to
deassert reset.

Properties inherited from the base binding file, which defines common properties that may be set on many nodes. Not all of these may apply to the “st,stm32-rcc-rctl” compatible.

Name	Type	Details
`status`	`string`	indicates the operational status of a device Legal values: `'ok'`, `'okay'`, `'disabled'`, `'reserved'`, `'fail'`, `'fail-sss'` See Important properties for more information.
`compatible`	`string-array`	compatible strings This property is required. See Important properties for more information.
`reg`	`array`	register space See Important properties for more information.
`reg-names`	`string-array`	name of each register space
`interrupts`	`array`	interrupts for device See Important properties for more information.
`interrupts-extended`	`compound`	extended interrupt specifier for device
`interrupt-names`	`string-array`	name of each interrupt
`interrupt-parent`	`phandle`	phandle to interrupt controller node
`label`	`string`	Human readable string describing the device (used as device_get_binding() argument) See Important properties for more information. This property is deprecated.
`clocks`	`phandle-array`	Clock gate information
`clock-names`	`string-array`	name of each clock
`#address-cells`	`int`	number of address cells in reg property
`#size-cells`	`int`	number of size cells in reg property
`dmas`	`phandle-array`	DMA channels specifiers
`dma-names`	`string-array`	Provided names of DMA channel specifiers
`io-channels`	`phandle-array`	IO channels specifiers
`io-channel-names`	`string-array`	Provided names of IO channel specifiers
`mboxes`	`phandle-array`	mailbox / IPM channels specifiers
`mbox-names`	`string-array`	Provided names of mailbox / IPM channel specifiers
`power-domains`	`phandle-array`	Power domain specifiers
`power-domain-names`	`string-array`	Provided names of power domain specifiers
`#power-domain-cells`	`int`	Number of cells in power-domains property
`zephyr,deferred-init`	`boolean`	Do not initialize device automatically on boot. Device should be manually initialized using device_init().
`wakeup-source`	`boolean`	Property to identify that a device can be used as wake up source. When this property is provided a specific flag is set into the device that tells the system that the device is capable of wake up the system. Wake up capable devices are disabled (interruptions will not wake up the system) by default but they can be enabled at runtime if necessary.
`zephyr,pm-device-runtime-auto`	`boolean`	Automatically configure the device for runtime power management after the init function runs.
`zephyr,disabling-power-states`	`phandles`	List of power states that will disable this device power.

Specifier cell names

reset cells: id