xref: /openbmc/linux/Documentation/devicetree/bindings/ata/faraday,ftide010.yaml (revision 6fdc6e23)

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/ata/faraday,ftide010.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Faraday Technology FTIDE010 PATA controller

maintainers:
  - Linus Walleij <linus.walleij@linaro.org>

description: |
  This controller is the first Faraday IDE interface block, used in the
  StorLink SL3512 and SL3516, later known as the Cortina Systems Gemini
  platform. The controller can do PIO modes 0 through 4, Multi-word DMA
  (MWDM) modes 0 through 2 and Ultra DMA modes 0 through 6.

  On the Gemini platform, this PATA block is accompanied by a PATA to
  SATA bridge in order to support SATA. This is why a phandle to that
  controller is compulsory on that platform.

  The timing properties are unique per-SoC, not per-board.

properties:
  compatible:
    oneOf:
      - const: faraday,ftide010
      - items:
          - const: cortina,gemini-pata
          - const: faraday,ftide010

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

  clocks:
    minItems: 1

  clock-names:
    const: PCLK

  sata:
    description:
      phandle to the Gemini PATA to SATA bridge, if available
    $ref: /schemas/types.yaml#/definitions/phandle

required:
  - compatible
  - reg
  - interrupts

allOf:
  - $ref: pata-common.yaml#

  - if:
      properties:
        compatible:
          contains:
            const: cortina,gemini-pata

    then:
      required:
        - sata

unevaluatedProperties: false

examples:
  - |
    #include <dt-bindings/interrupt-controller/irq.h>
    #include <dt-bindings/clock/cortina,gemini-clock.h>

    ide@63000000 {
      compatible = "cortina,gemini-pata", "faraday,ftide010";
      reg = <0x63000000 0x100>;
      interrupts = <4 IRQ_TYPE_EDGE_RISING>;
      clocks = <&gcc GEMINI_CLK_GATE_IDE>;
      clock-names = "PCLK";
      sata = <&sata>;
      #address-cells = <1>;
      #size-cells = <0>;
      ide-port@0 {
        reg = <0>;
      };
      ide-port@1 {
        reg = <1>;
      };
    };

...