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litex,clk

Vendor: LiteX SoC builder

Description

LiteX Mixed Mode Clock Manager
Common clock driver with MMCM unit for dynamic reconfiguration
of up to 7 clock outputs with ability to change frequency, duty
cycle and phase offset

Properties

Properties not inherited from the base binding file.

Name

Type

Details

#clock-cells

int

Number of items to expect in a Clock specifier

This property is required.

Constant value: 1

clock-output-names

string-array

List of strings of clock output signal names indexed
by the first cell in the clock specifier.

This property is required.

litex,lock-timeout

int

Number of ms to wait for MMCM to assert LOCK signal

This property is required.

litex,drdy-timeout

int

Number of ms to wait for MMCM to assert DRDY signal

This property is required.

litex,sys-clock-frequency

int

System clock frequency

This property is required.

litex,divclk-divide-min

int

minimal global divider

This property is required.

litex,divclk-divide-max

int

maximal global divider

This property is required.

litex,clkfbout-mult-min

int

minimal global multiplier

This property is required.

litex,clkfbout-mult-max

int

maximal global multiplier

This property is required.

litex,vco-freq-min

int

minimal frequency after global divider and multiplier

This property is required.

litex,vco-freq-max

int

maximal frequency after global divider and multiplier

This property is required.

litex,clkout-divide-min

int

minimal clock output divider

This property is required.

litex,clkout-divide-max

int

maximal clock output divider

This property is required.

litex,vco-margin

int

tolerancy for vco frequency

This property is required.

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 “litex,clk” compatible.

Name

Type

Details

reg

array

Base address and lengths of the register space

See Important properties for more information.

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-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.

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

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.

power-domain

phandle

Power domain the device belongs to.

The device will be notified when the power domain it belongs to is either
suspended or resumed.

Specifier cell names

  • clock cells: id