st,stm32wb-rcc
Vendor: STMicroelectronics
Description
STM32WB Reset and Clock controller node.
For more description confere st,stm32-rcc.yaml
Properties
Properties not inherited from the base binding file.
Name |
Type |
Details |
|---|---|---|
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CPU1 prescaler. Sets a HCLK1 frequency (Core frequency)
lower than SYSCLK frequency.
The HCLK1 clocks CPU1, AHB1, AHB2, AHB3 and SRAM1.
This property is required. Legal values: |
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CPU2 prescaler. Sets HCLK2 frequency which clocks CPU2.
(A.K.A C2HPRE)
This property is required. Legal values: |
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HCLK4 shared prescaler (AHB4, Flash memory and SRAM2).
(A.K.A SHDHPRE)
This property is required. Legal values: |
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Number of items to expect in a Clock specifier
This property is required. Constant value: |
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default frequency in Hz for clock output
This property is required. |
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This property is required. Legal values: |
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This property is required. Legal values: |
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On some parts, it could be required to set up highest core frequencies
(>80MHz) in two steps in order to prevent undershoot.
This is done by applying an intermediate AHB prescaler before switching
System Clock source to PLL. Once done, prescaler is set back to expected
value.
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Deprecated properties not inherited from the base binding file.
(None)
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,stm32wb-rcc” compatible.
Name |
Type |
Details |
|---|---|---|
|
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register space
This property is required. See Important properties for more information. |
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indicates the operational status of a device
Legal values: See Important properties for more information. |
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compatible strings
This property is required. See Important properties for more information. |
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name of each register space
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interrupts for device
See Important properties for more information. |
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extended interrupt specifier for device
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name of each interrupt
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phandle to interrupt controller node
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Human readable string describing the device (used as device_get_binding() argument)
See Important properties for more information. This property is deprecated. |
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Clock gate information
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name of each clock
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number of address cells in reg property
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number of size cells in reg property
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DMA channels specifiers
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Provided names of DMA channel specifiers
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IO channels specifiers
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Provided names of IO channel specifiers
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mailbox / IPM channels specifiers
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Provided names of mailbox / IPM channel specifiers
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Power domain specifiers
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Provided names of power domain specifiers
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Number of cells in power-domains property
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Do not initialize device automatically on boot. Device should be manually
initialized using device_init().
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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.
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Automatically configure the device for runtime power management after the
init function runs.
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List of power states that will disable this device power.
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Specifier cell names
clock cells: bus, bits