xref: /freebsd/sys/contrib/device-tree/Bindings/interrupt-controller/thead,c900-aclint-sswi.yaml (revision 5f62a964e9f8abc6a05d8338273fadd154f0a206)

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/interrupt-controller/thead,c900-aclint-sswi.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: T-HEAD C900 ACLINT Supervisor-level Software Interrupt Device

maintainers:
  - Inochi Amaoto <inochiama@outlook.com>

description:
  The SSWI device is a part of the THEAD ACLINT device. It provides
  supervisor-level IPI functionality for a set of HARTs on a THEAD
  platform. It provides a register to set an IPI (SETSSIP) for each
  HART connected to the SSWI device.

properties:
  compatible:
    items:
      - enum:
          - sophgo,sg2044-aclint-sswi
      - const: thead,c900-aclint-sswi

  reg:
    maxItems: 1

  "#interrupt-cells":
    const: 0

  interrupt-controller: true

  interrupts-extended:
    minItems: 1
    maxItems: 4095

additionalProperties: false

required:
  - compatible
  - reg
  - "#interrupt-cells"
  - interrupt-controller
  - interrupts-extended

examples:
  - |
    interrupt-controller@94000000 {
      compatible = "sophgo,sg2044-aclint-sswi", "thead,c900-aclint-sswi";
      reg = <0x94000000 0x00004000>;
      #interrupt-cells = <0>;
      interrupt-controller;
      interrupts-extended = <&cpu1intc 1>,
                            <&cpu2intc 1>,
                            <&cpu3intc 1>,
                            <&cpu4intc 1>;
    };
...