Bindings/nvmem/brcm,nvram.yaml

   1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/nvmem/brcm,nvram.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Broadcom's NVRAM
   8
   9 description: |
  10   Broadcom's NVRAM is a structure containing device specific environment
  11   variables. It is used for storing device configuration, booting parameters
  12   and calibration data.
  13
  14   NVRAM can be accessed on Broadcom BCM47xx MIPS and Northstar ARM Cortex-A9
  15   devices usiong I/O mapped memory.
  16
  17   NVRAM variables can be defined as NVMEM device subnodes.
  18
  19 maintainers:
  20   - Rafał Miłecki <rafal@milecki.pl>
  21
  22 allOf:
  23   - $ref: nvmem.yaml#
  24
  25 properties:
  26   compatible:
  27     const: brcm,nvram
  28
  29   reg:
  30     maxItems: 1
  31
  32   board_id:
  33     type: object
  34     description: Board identification name
  35
  36   et0macaddr:
  37     type: object
  38     description: First Ethernet interface's MAC address
  39     properties:
  40       "#nvmem-cell-cells":
  41         description: The first argument is a MAC address offset.
  42         const: 1
  43     additionalProperties: false
  44
  45   et1macaddr:
  46     type: object
  47     description: Second Ethernet interface's MAC address
  48     properties:
  49       "#nvmem-cell-cells":
  50         description: The first argument is a MAC address offset.
  51         const: 1
  52     additionalProperties: false
  53
  54   et2macaddr:
  55     type: object
  56     description: Third Ethernet interface's MAC address
  57     properties:
  58       "#nvmem-cell-cells":
  59         description: The first argument is a MAC address offset.
  60         const: 1
  61     additionalProperties: false
  62
  63 unevaluatedProperties: false
  64
  65 examples:
  66   - |
  67     nvram@1eff0000 {
  68         compatible = "brcm,nvram";
  69         reg = <0x1eff0000 0x10000>;
  70
  71         mac: et0macaddr {
  72         };
  73     };