1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-C 1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2 %YAML 1.2 2 %YAML 1.2
3 --- 3 ---
4 $id: http://devicetree.org/schemas/mtd/mtd.yam 4 $id: http://devicetree.org/schemas/mtd/mtd.yaml#
5 $schema: http://devicetree.org/meta-schemas/co 5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 6
7 title: MTD (Memory Technology Device) !! 7 title: MTD (Memory Technology Device) Device Tree Bindings
8 8
9 maintainers: 9 maintainers:
10 - Miquel Raynal <miquel.raynal@bootlin.com> 10 - Miquel Raynal <miquel.raynal@bootlin.com>
11 - Richard Weinberger <richard@nod.at> 11 - Richard Weinberger <richard@nod.at>
12 12
13 select: false <<
14 <<
15 properties: 13 properties:
16 $nodename: 14 $nodename:
17 pattern: "^(flash|.*sram|nand)(@.*)?$" !! 15 pattern: "^flash(@.*)?$"
18 16
19 label: 17 label:
20 description: 18 description:
21 User-defined MTD device name. Can be use 19 User-defined MTD device name. Can be used to assign user friendly
22 names to MTD devices (instead of the fla 20 names to MTD devices (instead of the flash model or flash controller
23 based name) in order to ease flash devic 21 based name) in order to ease flash device identification and/or
24 describe what they are used for. 22 describe what they are used for.
25 23
26 '#address-cells': <<
27 deprecated: true <<
28 <<
29 '#size-cells': <<
30 deprecated: true <<
31 <<
32 partitions: <<
33 $ref: /schemas/mtd/partitions/partitions.y <<
34 <<
35 required: <<
36 - compatible <<
37 <<
38 patternProperties: 24 patternProperties:
39 "@[0-9a-f]+$": <<
40 $ref: partitions/partition.yaml <<
41 deprecated: true <<
42 <<
43 "^partition@[0-9a-f]+": <<
44 $ref: partitions/partition.yaml <<
45 deprecated: true <<
46 <<
47 "^otp(-[0-9]+)?$": 25 "^otp(-[0-9]+)?$":
48 type: object 26 type: object
49 !! 27 $ref: ../nvmem/nvmem.yaml#
50 allOf: <<
51 - $ref: /schemas/nvmem/nvmem.yaml# <<
52 - $ref: /schemas/nvmem/nvmem-deprecated- <<
53 <<
54 unevaluatedProperties: false <<
55 28
56 description: | 29 description: |
57 An OTP memory region. Some flashes provi 30 An OTP memory region. Some flashes provide a one-time-programmable
58 memory whose content can either be progr 31 memory whose content can either be programmed by a user or is already
59 pre-programmed by the factory. Some flas 32 pre-programmed by the factory. Some flashes might provide both.
60 33
61 properties: 34 properties:
62 compatible: 35 compatible:
63 enum: 36 enum:
64 - user-otp 37 - user-otp
65 - factory-otp 38 - factory-otp
66 39
67 required: 40 required:
68 - compatible 41 - compatible
69 42
70 # This is a generic file other binding inherit <<
71 additionalProperties: true 43 additionalProperties: true
72 44
73 examples: 45 examples:
74 - | 46 - |
75 spi { 47 spi {
76 #address-cells = <1>; 48 #address-cells = <1>;
77 #size-cells = <0>; 49 #size-cells = <0>;
78 50
79 flash@0 { 51 flash@0 {
80 reg = <0>; 52 reg = <0>;
81 compatible = "jedec,spi-nor"; 53 compatible = "jedec,spi-nor";
82 label = "System-firmware"; 54 label = "System-firmware";
83 }; 55 };
84 }; 56 };
85 57
86 - | 58 - |
87 spi { 59 spi {
88 #address-cells = <1>; 60 #address-cells = <1>;
89 #size-cells = <0>; 61 #size-cells = <0>;
90 62
91 flash@0 { 63 flash@0 {
92 reg = <0>; 64 reg = <0>;
93 compatible = "jedec,spi-nor"; 65 compatible = "jedec,spi-nor";
94 66
95 otp-1 { 67 otp-1 {
96 compatible = "factory-otp"; 68 compatible = "factory-otp";
97 #address-cells = <1>; 69 #address-cells = <1>;
98 #size-cells = <1>; 70 #size-cells = <1>;
99 71
100 electronic-serial-number@0 { 72 electronic-serial-number@0 {
101 reg = <0 8>; 73 reg = <0 8>;
102 }; 74 };
103 }; 75 };
104 76
105 otp-2 { 77 otp-2 {
106 compatible = "user-otp"; 78 compatible = "user-otp";
107 #address-cells = <1>; 79 #address-cells = <1>;
108 #size-cells = <1>; 80 #size-cells = <1>;
109 81
110 mac-address@0 { 82 mac-address@0 {
111 reg = <0 6>; 83 reg = <0 6>;
112 }; 84 };
113 }; 85 };
114 }; 86 };
115 }; 87 };
116 88
117 ... 89 ...
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