Documentation/devicetree/bindings/spi/ti,qspi.yaml

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/spi/ti,qspi.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: TI QSPI controller

maintainers:
  - Kousik Sanagavarapu <five231003@gmail.com>

allOf:
  - $ref: spi-controller.yaml#

properties:
  compatible:
    enum:
      - ti,am4372-qspi
      - ti,dra7xxx-qspi

  reg:
    items:
      - description: base registers
      - description: mapped memory

  reg-names:
    items:
      - const: qspi_base
      - const: qspi_mmap

  clocks:
    maxItems: 1

  clock-names:
    items:
      - const: fck

  interrupts:
    maxItems: 1

  num-cs:
    minimum: 1
    maximum: 4
    default: 1

  ti,hwmods:
    description:
      Name of the hwmod associated to the QSPI.  This is for legacy
      platforms only.
    $ref: /schemas/types.yaml#/definitions/string
    deprecated: true

  syscon-chipselects:
    description:
      Handle to system control region containing QSPI chipselect register
      and offset of that register.
    $ref: /schemas/types.yaml#/definitions/phandle-array
    items:
      - items:
          - description: phandle to system control register
          - description: register offset

  spi-max-frequency:
    description: Maximum SPI clocking speed of the controller in Hz.
    $ref: /schemas/types.yaml#/definitions/uint32

required:
  - compatible
  - reg
  - reg-names
  - clocks
  - clock-names
  - interrupts

unevaluatedProperties: false

examples:
  - |
    #include <dt-bindings/clock/dra7.h>
    #include <dt-bindings/interrupt-controller/arm-gic.h>

    spi@4b300000 {
        compatible = "ti,dra7xxx-qspi";
        reg = <0x4b300000 0x100>,
              <0x5c000000 0x4000000>;
        reg-names = "qspi_base", "qspi_mmap";
        syscon-chipselects = <&scm_conf 0x558>;
        #address-cells = <1>;
        #size-cells = <0>;
        clocks = <&l4per2_clkctrl DRA7_L4PER2_QSPI_CLKCTRL 25>;
        clock-names = "fck";
        num-cs = <4>;
        spi-max-frequency = <48000000>;
        interrupts = <GIC_SPI 343 IRQ_TYPE_LEVEL_HIGH>;
    };
...