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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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dfa477b6e6
Add devicetree YAML binding for brcmstb bcm74110 mailbox used for communicating with a co-processor. Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Justin Chen <justin.chen@broadcom.com> Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com> Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>
65 lines
1.5 KiB
YAML
65 lines
1.5 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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$id: http://devicetree.org/schemas/mailbox/brcm,bcm74110-mbox.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Broadcom BCM74110 Mailbox
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maintainers:
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- Justin Chen <justin.chen@broadcom.com>
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- Florian Fainelli <florian.fainelli@broadcom.com>
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description: Broadcom mailbox hardware first introduced with 74110
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properties:
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compatible:
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enum:
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- brcm,bcm74110-mbox
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reg:
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maxItems: 1
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interrupts:
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items:
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- description: RX doorbell and watermark interrupts
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- description: TX doorbell and watermark interrupts
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"#mbox-cells":
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const: 2
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description:
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The first cell is channel type and second cell is shared memory slot
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brcm,rx:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: RX Mailbox number
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brcm,tx:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: TX Mailbox number
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required:
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- compatible
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- reg
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- interrupts
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- "#mbox-cells"
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- brcm,rx
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- brcm,tx
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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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#include <dt-bindings/interrupt-controller/arm-gic.h>
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mailbox@a552000 {
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compatible = "brcm,bcm74110-mbox";
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reg = <0xa552000 0x1104>;
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interrupts = <GIC_SPI 0x67 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 0x66 IRQ_TYPE_LEVEL_HIGH>;
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#mbox-cells = <0x2>;
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brcm,rx = <0x7>;
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brcm,tx = <0x6>;
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};
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