dts/bindings/flash_controller/renesas,ra-ospi-b-nor.yaml

# Copyright (c) 2024 Renesas Electronics Corporation
# SPDX-License-Identifier: Apache-2.0

description: Renesas RA OSPI FLASH

compatible: "renesas,ra-ospi-b-nor"

include: [flash-controller.yaml]

on-bus: ospi

properties:
  reg:
    required: true
    description: Flash Memory base address and size in bytes

  protocol-mode:
    type: int
    required: true
    description: |
     The width and rate of XSPI bus to which flash memory is connected.

     Possible values are :
      - XSPI_SPI_MODE  <1> = SPI mode on 1 data line
      - XSPI_DUAL_MODE <2> = Dual mode on 2 data lines
      - XSPI_QUAD_MODE <4> = Quad mode on 4 data lines
      - XSPI_OCTO_MODE <8> = Octo mode on 8 data lines
    enum:
      - 1
      - 2
      - 4
      - 8

  data-rate:
    type: int
    required: true
    description: |
     The SPI data Rate is STR or DTR

     Possible values are :
      - XSPI_STR_TRANSFER <1> = Single Rate Transfer
      - XSPI_DTR_TRANSFER <2> = Dual Rate Transfer (only with XSPI_OCTO_MODE)

  ospi-max-frequency:
    type: int
    required: true
    description: Max frequency input on OSPI

  write-block-size:
    type: int
    description: Address alignment required by flash write operations

child-binding:
  description: OSPI Flash page layout description
  child-binding:
    description: Individual flash page layout entry
    properties:
      pages-count:
        description: Number of consecutive pages with size pages-size bytes
        type: int
        required: true

      pages-size:
        type: int
        required: true