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52 lines
1.2 KiB
YAML
52 lines
1.2 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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$id: http://devicetree.org/schemas/mailbox/mtk,adsp-mbox.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Mediatek ADSP mailbox
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maintainers:
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- Allen-KH Cheng <Allen-KH.Cheng@mediatek.com>
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description: |
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The MTK ADSP mailbox Inter-Processor Communication (IPC) enables the SoC
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to communicate with ADSP by passing messages through two mailbox channels.
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The MTK ADSP mailbox IPC also provides the ability for one processor to
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signal the other processor using interrupts.
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properties:
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compatible:
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enum:
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- mediatek,mt8195-adsp-mbox
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- mediatek,mt8186-adsp-mbox
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"#mbox-cells":
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const: 0
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reg:
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maxItems: 1
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interrupts:
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maxItems: 1
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required:
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- compatible
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- "#mbox-cells"
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- reg
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- interrupts
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/interrupt-controller/arm-gic.h>
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#include <dt-bindings/interrupt-controller/irq.h>
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adsp_mailbox0:mailbox@10816000 {
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compatible = "mediatek,mt8195-adsp-mbox";
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#mbox-cells = <0>;
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reg = <0x10816000 0x1000>;
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interrupts = <GIC_SPI 702 IRQ_TYPE_LEVEL_HIGH 0>;
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};
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