gd,gd32-fwdgt
Vendor: GigaDevice Semiconductor
Note
An implementation of a driver matching this compatible is available in drivers/watchdog/wdt_fwdgt_gd32.c.
Description
GD32 free watchdog timer
Properties
Properties not inherited from the base binding file.
Name |
Type |
Details |
|---|---|---|
|
|
Set timeout value in milliseconds.
The following equation gives the maximum timeout value
timeout = (reload + 1) / (peripheral_freqency / prescaler).
where the maximum prescaler = 256 and the maximum reload = 4096.
The peripheral_frequency uses GD32_LOW_SPEED_IRC_FREQUENCY
that defined in modules/hal_gigadevice/Kconfig.
Validate the value is within a capable range at the compile time.
The default value defined is close to the register reset value
from values that don't cause calculation errors in both cases of
the low-speed internal RC oscillator frequency is 32kHz or 40kHz.
0.25 [timeout in sec] = (1999 [reload] + 1) / (32000 [freq] / 4 [prescaler])
0.25 [timeout in sec] = (2499 [reload] + 1) / (40000 [freq] / 4 [prescaler])
Default value: |
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 “gd,gd32-fwdgt” compatible.
Name |
Type |
Details |
|---|---|---|
|
|
register space
This property is required. See Important properties for more information. |
|
|
indicates the operational status of a device
Legal values: See Important properties for more information. |
|
|
compatible strings
This property is required. See Important properties for more information. |
|
|
name of each register space
|
|
|
interrupts for device
See Important properties for more information. |
|
|
extended interrupt specifier for device
|
|
|
name of each interrupt
|
|
|
phandle to interrupt controller node
|
|
|
Human readable string describing the device (used as device_get_binding() argument)
See Important properties for more information. This property is deprecated. |
|
|
Clock gate information
|
|
|
name of each clock
|
|
|
number of address cells in reg property
|
|
|
number of size cells in reg property
|
|
|
DMA channels specifiers
|
|
|
Provided names of DMA channel specifiers
|
|
|
IO channels specifiers
|
|
|
Provided names of IO channel specifiers
|
|
|
mailbox / IPM channels specifiers
|
|
|
Provided names of mailbox / IPM channel specifiers
|
|
|
Power domain specifiers
|
|
|
Provided names of power domain specifiers
|
|
|
Number of cells in power-domains property
|
|
|
Do not initialize device automatically on boot. Device should be manually
initialized using device_init().
|
|
|
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.
|
|
|
Automatically configure the device for runtime power management after the
init function runs.
|
|
|
List of power states that will disable this device power.
|