1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/soc/bcm/brcm,bcm2835-vchiq.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Broadcom VCHIQ firmware services
8
9 maintainers:
10 - Nicolas Saenz Julienne <nsaenz@kernel.org>
11
12 description:
13 The VCHIQ communication channel can be provided by BCM283x and Capri SoCs,
14 to communicate with the VPU-side OS services.
15
16 properties:
17 compatible:
18 oneOf:
19 - description: BCM2835 based boards
20 items:
21 - enum:
22 - brcm,bcm2835-vchiq
23
24 - description: BCM2836/BCM2837 based boards
25 items:
26 - enum:
27 - brcm,bcm2836-vchiq
28 - const: brcm,bcm2835-vchiq
29
30 reg:
31 description: Physical base address and length of the doorbell register pair
32 minItems: 1
33
34 interrupts:
35 description: Interrupt number of the doorbell interrupt
36 minItems: 1
37
38 required:
39 - compatible
40 - reg
41 - interrupts
42
43 additionalProperties: false
44
45 examples:
46 - |
47 mailbox@7e00b840 {
48 compatible = "brcm,bcm2835-vchiq";
49 reg = <0x7e00b840 0xf>;
50 interrupts = <0 2>;
51 };
52
53 ...
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