Documentation/devicetree/bindings/nvmem/brcm,nvram.yaml
Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/nvmem/brcm,nvram.yaml
File Facts
- System
- Linux kernel
- Corpus path
Documentation/devicetree/bindings/nvmem/brcm,nvram.yaml- Extension
.yaml- Size
- 1723 bytes
- Lines
- 74
- Domain
- Support Tooling And Documentation
- Bucket
- Documentation
- Inferred role
- Support Tooling And Documentation: configuration, schema, or hardware description
- Status
- atlas-only
Why This File Exists
Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.
- Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.
Dependency Surface
- No C-style include directives detected by the generator.
Detected Declarations
- No top-level syscall, struct, function, initcall, or export declaration detected by the generator.
Annotated Snippet
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/nvmem/brcm,nvram.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Broadcom's NVRAM
description: |
Broadcom's NVRAM is a structure containing device specific environment
variables. It is used for storing device configuration, booting parameters
and calibration data.
NVRAM can be accessed on Broadcom BCM47xx MIPS and Northstar ARM Cortex-A9
devices usiong I/O mapped memory.
NVRAM variables can be defined as NVMEM device subnodes.
maintainers:
- Rafał Miłecki <rafal@milecki.pl>
allOf:
- $ref: nvmem.yaml#
properties:
compatible:
const: brcm,nvram
reg:
maxItems: 1
board_id:
type: object
description: Board identification name
et0macaddr:
type: object
description: First Ethernet interface's MAC address
properties:
"#nvmem-cell-cells":
description: The first argument is a MAC address offset.
const: 1
additionalProperties: false
et1macaddr:
type: object
description: Second Ethernet interface's MAC address
properties:
"#nvmem-cell-cells":
description: The first argument is a MAC address offset.
const: 1
additionalProperties: false
et2macaddr:
type: object
description: Third Ethernet interface's MAC address
properties:
"#nvmem-cell-cells":
description: The first argument is a MAC address offset.
const: 1
additionalProperties: false
unevaluatedProperties: false
examples:
- |
nvram@1eff0000 {
compatible = "brcm,nvram";
reg = <0x1eff0000 0x10000>;
Annotation
- Atlas domain: Support Tooling And Documentation / Documentation.
- Implementation status: atlas-only.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.