dts/bindings/clock/st,stm32wb-rcc.yaml

# Copyright (c) 2021, Linaro ltd
# SPDX-License-Identifier: Apache-2.0

description: |
  STM32WB Reset and Clock controller node.
  For more description confere st,stm32-rcc.yaml

compatible: "st,stm32wb-rcc"

include:
  - name: st,stm32-rcc.yaml
    property-blocklist:
      - ahb-prescaler

properties:
    cpu1-prescaler:
      type: int
      required: true
      enum:
        - 1
        - 2
        - 3
        - 4
        - 5
        - 6
        - 8
        - 10
        - 16
        - 32
        - 64
        - 128
        - 256
        - 512
      description: |
          CPU1 prescaler. Sets a HCLK1 frequency (feeding Cortex-M Systick)
          lower than SYSCLK frequency (actual core frequency).
          The HCLK1 clocks CPU1, AHB1, AHB2, AHB3 and SRAM1.

    cpu2-prescaler:
      type: int
      required: true
      enum:
        - 1
        - 2
        - 4
        - 8
        - 16
        - 32
        - 64
        - 128
        - 256
        - 512
      description: |
          CPU2 prescaler. Sets HCLK2 frequency which clocks CPU2.
          (A.K.A C2HPRE)

    ahb4-prescaler:
      type: int
      required: true
      enum:
        - 1
        - 2
        - 4
        - 8
        - 16
        - 32
        - 64
        - 128
        - 256
        - 512
      description: |
          HCLK4 shared prescaler (AHB4, Flash memory and SRAM2).
          (A.K.A SHDHPRE)

clock-cells:
  - bus
  - bits