Documentation/devicetree/bindings/soc/bcm/brcm,bcm2835-vchiq.yaml

   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 ...