1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 2%YAML 1.2 3--- 4$id: "http://devicetree.org/schemas/interrupt-controller/loongson,pch-msi.yaml#" 5$schema: "http://devicetree.org/meta-schemas/core.yaml#" 6 7title: Loongson PCH MSI Controller 8 9maintainers: 10 - Jiaxun Yang <jiaxun.yang@flygoat.com> 11 12description: 13 This interrupt controller is found in the Loongson LS7A family of PCH for 14 transforming interrupts from PCIe MSI into HyperTransport vectorized 15 interrupts. 16 17properties: 18 compatible: 19 const: loongson,pch-msi-1.0 20 21 reg: 22 maxItems: 1 23 24 loongson,msi-base-vec: 25 description: 26 u32 value of the base of parent HyperTransport vector allocated 27 to PCH MSI. 28 $ref: "/schemas/types.yaml#/definitions/uint32" 29 minimum: 0 30 maximum: 255 31 32 loongson,msi-num-vecs: 33 description: 34 u32 value of the number of parent HyperTransport vectors allocated 35 to PCH MSI. 36 $ref: "/schemas/types.yaml#/definitions/uint32" 37 minimum: 1 38 maximum: 256 39 40 msi-controller: true 41 42required: 43 - compatible 44 - reg 45 - msi-controller 46 - loongson,msi-base-vec 47 - loongson,msi-num-vecs 48 49additionalProperties: true #fixme 50 51examples: 52 - | 53 #include <dt-bindings/interrupt-controller/irq.h> 54 msi: msi-controller@2ff00000 { 55 compatible = "loongson,pch-msi-1.0"; 56 reg = <0x2ff00000 0x4>; 57 msi-controller; 58 loongson,msi-base-vec = <64>; 59 loongson,msi-num-vecs = <64>; 60 interrupt-parent = <&htvec>; 61 }; 62... 63