1# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/mtd/partitions/u-boot.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: U-Boot bootloader partition
8
9description: |
10  U-Boot is a bootloader commonly used in embedded devices. It's almost always
11  located on some kind of flash device.
12
13  Device configuration is stored as a set of environment variables that are
14  located in a (usually standalone) block of data.
15
16maintainers:
17  - Rafał Miłecki <rafal@milecki.pl>
18
19allOf:
20  - $ref: partition.yaml#
21
22properties:
23  compatible:
24    oneOf:
25      - const: brcm,u-boot
26        description: |
27          Broadcom stores environment variables inside a U-Boot partition. They
28          can be identified by a custom header with magic value.
29
30patternProperties:
31  "^partition-.*$":
32    $ref: partition.yaml#
33
34unevaluatedProperties: false
35
36examples:
37  - |
38    partitions {
39        compatible = "fixed-partitions";
40        #address-cells = <1>;
41        #size-cells = <1>;
42
43        partition@0 {
44            compatible = "brcm,u-boot";
45            reg = <0x0 0x100000>;
46            label = "u-boot";
47
48            partition-u-boot-env {
49            };
50        };
51
52        partition@100000 {
53            reg = <0x100000 0x1ff00000>;
54            label = "firmware";
55        };
56    };
57