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 bootlodaer 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
30unevaluatedProperties: false
31
32examples:
33  - |
34    partitions {
35        compatible = "fixed-partitions";
36        #address-cells = <1>;
37        #size-cells = <1>;
38
39        partition@0 {
40            compatible = "brcm,u-boot";
41            reg = <0x0 0x100000>;
42            label = "u-boot";
43        };
44
45        partition@100000 {
46            reg = <0x100000 0x1ff00000>;
47            label = "firmware";
48        };
49    };
50