andestech,atcpit100
Vendor: Andes Technology Corporation
Note
An implementation of a driver matching this compatible is available in drivers/counter/counter_andes_atcpit100.c.
Description
This is a representation of the Andes Technology atcpit100 PIT node
Properties
Properties not inherited from the base binding file.
Name |
Type |
Details |
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channel clock source
This property is required. |
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The prescaler value defines the counter frequency
(clock-frequency/prescaler) in atcpit100 counter driver, the prescaler
value could be in range [1 .. clock-frequency] and 1 means no prescaler
for the PIT clock-frequency.
Defaults to 1 to use the PIT clock-frequency as the counter frequency.
Setting the prescaler value if the system overhead is close to or
larger than a counter tick period, reducing the counter frequency to
avoid imprecise counter value.
For example, andes_v5_ae350 platform takes about 200 ~ 300 PIT
clock cycles for counter interface, setting prescaler value to 600 in
this case.
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 “andestech,atcpit100” compatible.
Name |
Type |
Details |
|---|---|---|
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register space
This property is required. See Important properties for more information. |
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interrupts for device
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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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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