69 lines
1.9 KiB
YAML
69 lines
1.9 KiB
YAML
# 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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$id: http://devicetree.org/schemas/interrupt-controller/mediatek,mtk-cirq.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: MediaTek System Interrupt Controller
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maintainers:
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- Youlin Pei <youlin.pei@mediatek.com>
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description:
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In MediaTek SoCs, the CIRQ is a low power interrupt controller designed to
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work outside of MCUSYS which comprises with Cortex-Ax cores, CCI and GIC.
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The external interrupts (outside MCUSYS) will feed through CIRQ and connect
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to GIC in MCUSYS. When CIRQ is enabled, it will record the edge-sensitive
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interrupts and generate a pulse signal to parent interrupt controller when
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flush command is executed. With CIRQ, MCUSYS can be completely turned off
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to improve the system power consumption without losing interrupts.
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properties:
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compatible:
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items:
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- enum:
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- mediatek,mt2701-cirq
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- mediatek,mt8135-cirq
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- mediatek,mt8173-cirq
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- mediatek,mt8192-cirq
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- const: mediatek,mtk-cirq
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reg:
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maxItems: 1
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'#interrupt-cells':
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const: 3
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interrupt-controller: true
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mediatek,ext-irq-range:
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$ref: /schemas/types.yaml#/definitions/uint32-array
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items:
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- description: First CIRQ interrupt
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- description: Last CIRQ interrupt
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description:
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Identifies the range of external interrupts in different SoCs
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required:
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- compatible
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- reg
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- '#interrupt-cells'
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- interrupt-controller
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- mediatek,ext-irq-range
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/interrupt-controller/irq.h>
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cirq: interrupt-controller@10204000 {
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compatible = "mediatek,mt2701-cirq", "mediatek,mtk-cirq";
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reg = <0x10204000 0x400>;
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#interrupt-cells = <3>;
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interrupt-controller;
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interrupt-parent = <&sysirq>;
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mediatek,ext-irq-range = <32 200>;
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};
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