Documentation/devicetree/bindings/spi/andestech,ae350-spi.yaml

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/spi/andestech,ae350-spi.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Andes ATCSPI200 SPI controller

maintainers:
  - CL Wang <cl634@andestech.com>

properties:
  compatible:
    oneOf:
      - items:
          - enum:
              - andestech,qilai-spi
          - const: andestech,ae350-spi
      - const: andestech,ae350-spi

  reg:
    maxItems: 1

  clocks:
    maxItems: 1

  num-cs:
    description: Number of chip selects supported
    maxItems: 1

  dmas:
    items:
      - description: Transmit FIFO DMA channel
      - description: Receive FIFO DMA channel

  dma-names:
    items:
      - const: tx
      - const: rx

patternProperties:
  "@[0-9a-f]+$":
    type: object
    additionalProperties: true

    properties:
      spi-rx-bus-width:
        items:
          - enum: [1, 4]

      spi-tx-bus-width:
        items:
          - enum: [1, 4]

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

required:
  - compatible
  - reg
  - clocks
  - dmas
  - dma-names

unevaluatedProperties: false

examples:
  - |
    spi@f0b00000 {
        compatible = "andestech,ae350-spi";
        reg = <0xf0b00000 0x100>;
        clocks = <&clk_spi>;
        dmas = <&dma0 0>, <&dma0 1>;
        dma-names = "tx", "rx";

        #address-cells = <1>;
        #size-cells = <0>;

        flash@0 {
            compatible = "jedec,spi-nor";
            reg = <0>;
            spi-tx-bus-width = <4>;
            spi-rx-bus-width = <4>;
            spi-cpol;
            spi-cpha;
        };
    };