1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 2%YAML 1.2 3--- 4$id: http://devicetree.org/schemas/interrupt-controller/hisilicon,mbigen-v2.yaml# 5$schema: http://devicetree.org/meta-schemas/core.yaml# 6 7title: Hisilicon mbigen v2 8 9maintainers: 10 - Wei Xu <xuwei5@hisilicon.com> 11 12description: > 13 Mbigen means: message based interrupt generator. 14 15 MBI is kind of msi interrupt only used on Non-PCI devices. 16 17 To reduce the wired interrupt number connected to GIC, Hisilicon designed 18 mbigen to collect and generate interrupt. 19 20 Non-pci devices can connect to mbigen and generate the interrupt by writing 21 ITS register. 22 23properties: 24 compatible: 25 const: hisilicon,mbigen-v2 26 27 reg: 28 maxItems: 1 29 30required: 31 - compatible 32 - reg 33 34additionalProperties: 35 type: object 36 additionalProperties: false 37 38 properties: 39 interrupt-controller: true 40 41 '#interrupt-cells': 42 const: 2 43 44 msi-parent: 45 maxItems: 1 46 47 num-pins: 48 description: The total number of pins implemented in this Mbigen instance. 49 $ref: /schemas/types.yaml#/definitions/uint32 50 51 required: 52 - interrupt-controller 53 - "#interrupt-cells" 54 - msi-parent 55 - num-pins 56 57examples: 58 - | 59 mbigen@c0080000 { 60 compatible = "hisilicon,mbigen-v2"; 61 reg = <0xc0080000 0x10000>; 62 63 mbigen_gmac: intc_gmac { 64 interrupt-controller; 65 #interrupt-cells = <2>; 66 msi-parent = <&its_dsa 0x40b1c>; 67 num-pins = <9>; 68 }; 69 70 mbigen_i2c: intc_i2c { 71 interrupt-controller; 72 #interrupt-cells = <2>; 73 msi-parent = <&its_dsa 0x40b0e>; 74 num-pins = <2>; 75 }; 76 }; 77