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/fixed-partitions.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Fixed partitions
8
9 description: |
10 This binding can be used on platforms which have strong conventions about
11 which portions of a flash are used for what purposes, but which don't use an
12 on-flash partition table such as RedBoot.
13
14 The partition table should be a node named "partitions". Partitions are then
15 defined as subnodes.
16
17 maintainers:
18 - Rafał Miłecki <rafal@milecki.pl>
19
20 properties:
21 compatible:
22 oneOf:
23 - const: fixed-partitions
24 - items:
25 - const: sercomm,sc-partitions
26 - const: fixed-partitions
27
28 "#address-cells": true
29
30 "#size-cells": true
31
32 compression:
33 $ref: /schemas/types.yaml#/definitions/string
34 description: |
35 Compression algorithm used to store the data in this partition, chosen
36 from a list of well-known algorithms.
37
38 The contents are compressed using this algorithm.
39
40 enum:
41 - none
42 - bzip2
43 - gzip
44 - lzop
45 - lz4
46 - lzma
47 - xz
48 - zstd
49
50 patternProperties:
51 "@[0-9a-f]+$":
52 $ref: partition.yaml#
53
54 properties:
55 sercomm,scpart-id:
56 description: Partition id in Sercomm partition map. Mtd parser
57 uses this id to find a record in the partition map containing
58 offset and size of the current partition. The values from
59 partition map overrides partition offset and size defined in
60 reg property of the dts. Frequently these values are the same,
61 but may differ if device has bad eraseblocks on a flash.
62 $ref: /schemas/types.yaml#/definitions/uint32
63
64 required:
65 - "#address-cells"
66 - "#size-cells"
67
68 additionalProperties: true
69
70 examples:
71 - |
72 partitions {
73 compatible = "fixed-partitions";
74 #address-cells = <1>;
75 #size-cells = <1>;
76
77 partition@0 {
78 label = "u-boot";
79 reg = <0x0000000 0x100000>;
80 read-only;
81 };
82
83 uimage@100000 {
84 reg = <0x0100000 0x200000>;
85 compress = "lzma";
86 };
87 };
88
89 - |
90 partitions {
91 compatible = "fixed-partitions";
92 #address-cells = <1>;
93 #size-cells = <2>;
94
95 /* a 4 GiB partition */
96 partition@0 {
97 label = "filesystem";
98 reg = <0x00000000 0x1 0x00000000>;
99 linux,rootfs;
100 };
101 };
102
103 - |
104 partitions {
105 compatible = "fixed-partitions";
106 #address-cells = <2>;
107 #size-cells = <2>;
108
109 /* an 8 GiB partition */
110 partition@0 {
111 label = "filesystem #1";
112 reg = <0x0 0x00000000 0x2 0x00000000>;
113 };
114
115 /* a 4 GiB partition */
116 partition@200000000 {
117 label = "filesystem #2";
118 reg = <0x2 0x00000000 0x1 0x00000000>;
119 };
120 };
121
122 - |
123 partitions {
124 compatible = "fixed-partitions";
125 #address-cells = <1>;
126 #size-cells = <1>;
127
128 partition@0 {
129 label = "bootloader";
130 reg = <0x000000 0x100000>;
131 read-only;
132 };
133
134 firmware@100000 {
135 compatible = "brcm,trx";
136 label = "firmware";
137 reg = <0x100000 0xe00000>;
138 };
139
140 calibration@f00000 {
141 compatible = "fixed-partitions";
142 label = "calibration";
143 reg = <0xf00000 0x100000>;
144 ranges = <0 0xf00000 0x100000>;
145 #address-cells = <1>;
146 #size-cells = <1>;
147
148 partition@0 {
149 label = "wifi0";
150 reg = <0x000000 0x080000>;
151 };
152
153 partition@80000 {
154 label = "wifi1";
155 reg = <0x080000 0x080000>;
156 };
157 };
158 };
159
160 - |
161 partitions {
162 compatible = "sercomm,sc-partitions", "fixed-partitions";
163 #address-cells = <1>;
164 #size-cells = <1>;
165
166 partition@0 {
167 label = "u-boot";
168 reg = <0x0 0x100000>;
169 sercomm,scpart-id = <0>;
170 read-only;
171 };
172
173 partition@100000 {
174 label = "dynamic partition map";
175 reg = <0x100000 0x100000>;
176 sercomm,scpart-id = <1>;
177 };
178
179 partition@200000 {
180 label = "Factory";
181 reg = <0x200000 0x100000>;
182 sercomm,scpart-id = <2>;
183 read-only;
184 };
185 };
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