Commit dfa477b6 authored by Justin Chen's avatar Justin Chen Committed by Jassi Brar
Browse files

dt-bindings: mailbox: Add support for bcm74110 



Add devicetree YAML binding for brcmstb bcm74110 mailbox used
for communicating with a co-processor.

Reviewed-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: default avatarJustin Chen <justin.chen@broadcom.com>
Reviewed-by: default avatarFlorian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: default avatarJassi Brar <jassisinghbrar@gmail.com>
parent fd3a4dec

Documentation/devicetree/bindings/mailbox/brcm,bcm74110-mbox.yaml

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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>;

    };