# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: "http://devicetree.org/schemas/interrupt-controller/loongson,pch-msi.yaml#"
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$schema: "http://devicetree.org/meta-schemas/core.yaml#"
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title: Loongson PCH MSI Controller
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maintainers:
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- Jiaxun Yang <jiaxun.yang@flygoat.com>
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description:
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This interrupt controller is found in the Loongson LS7A family of PCH for
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transforming interrupts from PCIe MSI into HyperTransport vectorized
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interrupts.
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properties:
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compatible:
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const: loongson,pch-msi-1.0
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reg:
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maxItems: 1
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loongson,msi-base-vec:
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description:
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u32 value of the base of parent HyperTransport vector allocated
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to PCH MSI.
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$ref: "/schemas/types.yaml#/definitions/uint32"
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minimum: 0
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maximum: 255
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loongson,msi-num-vecs:
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description:
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u32 value of the number of parent HyperTransport vectors allocated
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to PCH MSI.
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$ref: "/schemas/types.yaml#/definitions/uint32"
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minimum: 1
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maximum: 256
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msi-controller: true
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required:
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- compatible
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- reg
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- msi-controller
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- loongson,msi-base-vec
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- loongson,msi-num-vecs
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additionalProperties: true #fixme
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examples:
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- |
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#include <dt-bindings/interrupt-controller/irq.h>
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msi: msi-controller@2ff00000 {
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compatible = "loongson,pch-msi-1.0";
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reg = <0x2ff00000 0x4>;
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msi-controller;
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loongson,msi-base-vec = <64>;
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loongson,msi-num-vecs = <64>;
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interrupt-parent = <&htvec>;
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};
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...
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