dts/bindings/clock/litex,clk.yaml

# Copyright (c) 2020 Antmicro <www.antmicro.com>
# SPDX-License-Identifier: Apache-2.0

include: [clock-controller.yaml, base.yaml]

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

compatible: "litex,clk"

clock-cells:
  - id

properties:

  reg:
    description: Base address and lengths of the register space

  "#clock-cells":
    required: true
    const: 1

  clock-output-names:
    required: true
    type: string-array
    description: |
      List of strings of clock output signal names indexed
      by the first cell in the clock specifier.

  litex,lock-timeout:
    required: true
    type: int
    description: |
      Number of ms to wait for MMCM to assert LOCK signal
  litex,drdy-timeout:
    required: true
    type: int
    description: |
      Number of ms to wait for MMCM to assert DRDY signal
  litex,sys-clock-frequency:
    required: true
    type: int
    description: |
      System clock frequency
  litex,divclk-divide-min:
    required: true
    type: int
    description: |
      minimal global divider
  litex,divclk-divide-max:
    required: true
    type: int
    description: |
      maximal global divider
  litex,clkfbout-mult-min:
    required: true
    type: int
    description: |
      minimal global multiplier
  litex,clkfbout-mult-max:
    required: true
    type: int
    description: |
      maximal global multiplier
  litex,vco-freq-min:
    required: true
    type: int
    description: |
      minimal frequency after global divider and multiplier
  litex,vco-freq-max:
    required: true
    type: int
    description: |
      maximal frequency after global divider and multiplier
  litex,clkout-divide-min:
    required: true
    type: int
    description: |
      minimal clock output divider
  litex,clkout-divide-max:
    required: true
    type: int
    description: |
      maximal clock output divider
  litex,vco-margin:
    required: true
    type: int
    description: |
      tolerancy for vco frequency
    const: 0