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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/mailbox/brcm,bcm74110-mbox.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Broadcom BCM74110 Mailbox
maintainers:
- Justin Chen <justin.chen@broadcom.com>
- Florian Fainelli <florian.fainelli@broadcom.com>
description: Broadcom mailbox hardware first introduced with 74110
properties:
compatible:
enum:
- brcm,bcm74110-mbox
reg:
maxItems: 1
interrupts:
items:
- description: RX doorbell and watermark interrupts
- description: TX doorbell and watermark interrupts
"#mbox-cells":
const: 2
description:
The first cell is channel type and second cell is shared memory slot
brcm,rx:
$ref: /schemas/types.yaml#/definitions/uint32
description: RX Mailbox number
brcm,tx:
$ref: /schemas/types.yaml#/definitions/uint32
description: TX Mailbox number
required:
- compatible
- reg
- interrupts
- "#mbox-cells"
- brcm,rx
- brcm,tx
additionalProperties: false
examples:
- |
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
mailbox@a552000 {
compatible = "brcm,bcm74110-mbox";
reg = <0xa552000 0x1104>;
interrupts = <GIC_SPI 0x67 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 0x66 IRQ_TYPE_LEVEL_HIGH>;
#mbox-cells = <0x2>;
brcm,rx = <0x7>;
brcm,tx = <0x6>;
};
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