xref: /openbmc/linux/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7622-wed.yaml (revision 1ac731c529cd4d6adbce134754b51ff7d822b145)

# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/arm/mediatek/mediatek,mt7622-wed.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: MediaTek Wireless Ethernet Dispatch Controller for MT7622

maintainers:
  - Lorenzo Bianconi <lorenzo@kernel.org>
  - Felix Fietkau <nbd@nbd.name>

description:
  The mediatek wireless ethernet dispatch controller can be configured to
  intercept and handle access to the WLAN DMA queues and PCIe interrupts
  and implement hardware flow offloading from ethernet to WLAN.

properties:
  compatible:
    items:
      - enum:
          - mediatek,mt7622-wed
          - mediatek,mt7981-wed
          - mediatek,mt7986-wed
      - const: syscon

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

  memory-region:
    items:
      - description: firmware EMI region
      - description: firmware ILM region
      - description: firmware DLM region
      - description: firmware CPU DATA region
      - description: firmware BOOT region

  memory-region-names:
    items:
      - const: wo-emi
      - const: wo-ilm
      - const: wo-dlm
      - const: wo-data
      - const: wo-boot

  mediatek,wo-ccif:
    $ref: /schemas/types.yaml#/definitions/phandle
    description: mediatek wed-wo controller interface.

allOf:
  - if:
      properties:
        compatible:
          contains:
            const: mediatek,mt7622-wed
    then:
      properties:
        memory-region-names: false
        memory-region: false
        mediatek,wo-ccif: false

required:
  - compatible
  - reg
  - interrupts

additionalProperties: false

examples:
  - |
    #include <dt-bindings/interrupt-controller/arm-gic.h>
    #include <dt-bindings/interrupt-controller/irq.h>
    soc {
      #address-cells = <2>;
      #size-cells = <2>;
      wed0: wed@1020a000 {
        compatible = "mediatek,mt7622-wed","syscon";
        reg = <0 0x1020a000 0 0x1000>;
        interrupts = <GIC_SPI 214 IRQ_TYPE_LEVEL_LOW>;
      };
    };

  - |
    #include <dt-bindings/interrupt-controller/arm-gic.h>
    #include <dt-bindings/interrupt-controller/irq.h>
    soc {
      #address-cells = <2>;
      #size-cells = <2>;

      wed@15010000 {
        compatible = "mediatek,mt7986-wed", "syscon";
        reg = <0 0x15010000 0 0x1000>;
        interrupts = <GIC_SPI 205 IRQ_TYPE_LEVEL_HIGH>;

        memory-region = <&wo_emi>, <&wo_ilm>, <&wo_dlm>,
                        <&wo_data>, <&wo_boot>;
        memory-region-names = "wo-emi", "wo-ilm", "wo-dlm",
                              "wo-data", "wo-boot";
        mediatek,wo-ccif = <&wo_ccif0>;
      };
    };