| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 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 | }; |