dts/bindings/flash_controller/nordic,nrf-qspi.yaml

# Copyright (c) 2019 Nordic Semiconductor ASA
# SPDX-License-Identifier: Apache-2.0

description: |
    Properties defining the interface for the Nordic QSPI peripheral.

    The reg property describes two register blocks: one for the memory
    corresponding to the QSPI peripheral registers, and another for
    the memory mapped XIP area:

        qspi: qspi@2b000 {
                compatible = "nordic,nrf-qspi";
                reg = <0x2b000 0x1000>, <0x10000000 0x10000000>;
                reg-names = "qspi", "qspi_mm";
                ...
        };

    Above, the register block with base address 0x2b000 and name
    "qspi" are the QSPI peripheral registers. The register block with
    base address 0x10000000 and name "qspi_mm" is the XIP area.

compatible: "nordic,nrf-qspi"

include: [flash-controller.yaml, pinctrl-device.yaml]

bus: qspi

properties:
  "#address-cells":
    required: true
    const: 1

  "#size-cells":
    required: true
    const: 0

  interrupts:
    required: true

  sck-pin:
    type: int
    deprecated: true
    required: false
    description: |
      IMPORTANT: This option will only be used if the new pin control driver
      is not enabled.

      The SCK pin to use.

      For pins P0.0 through P0.31, use the pin number. For example,
      to use P0.16 for SCK, set:

          sck-pin = <16>;

      For pins P1.0 through P1.31, add 32 to the pin number. For
      example, to use P1.2 for SCK, set:

          sck-pin = <34>;  /* 32 + 2 */
  io-pins:
    type: array
    required: false
    description: |
      IMPORTANT: This option will only be used if the new pin control driver
      is not enabled.

      Pin numbers associated with IO0 through IO3 signals.

      Examples:

          io-pins = <io0-pin io1-pin>; // two pins

          io-pins = <io0-pin io1-pin io2-pin io3-pin>; // four pins

      Either two or four pins must be configured using this property
      as shown above. The pin numbering scheme is the same as the
      sck-pin property's.
  csn-pins:
    type: array
    required: false
    description: |
      IMPORTANT: This option will only be used if the new pin control driver
      is not enabled.

      Chip select signal pin number. Exactly one pin should be
      given. The pin numbering scheme is the same as the
      sck-pin property's.