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)
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|.*sram|nand)(@.*)?$"
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': 24 '#address-cells':
27 deprecated: true 25 deprecated: true
28 26
29 '#size-cells': 27 '#size-cells':
30 deprecated: true 28 deprecated: true
31 29
32 partitions: 30 partitions:
33 $ref: /schemas/mtd/partitions/partitions.y 31 $ref: /schemas/mtd/partitions/partitions.yaml
34 32
35 required: 33 required:
36 - compatible 34 - compatible
37 35
38 patternProperties: 36 patternProperties:
39 "@[0-9a-f]+$": 37 "@[0-9a-f]+$":
40 $ref: partitions/partition.yaml 38 $ref: partitions/partition.yaml
41 deprecated: true 39 deprecated: true
42 40
43 "^partition@[0-9a-f]+": 41 "^partition@[0-9a-f]+":
44 $ref: partitions/partition.yaml 42 $ref: partitions/partition.yaml
45 deprecated: true 43 deprecated: true
46 44
47 "^otp(-[0-9]+)?$": 45 "^otp(-[0-9]+)?$":
48 type: object !! 46 $ref: ../nvmem/nvmem.yaml#
49 <<
50 allOf: <<
51 - $ref: /schemas/nvmem/nvmem.yaml# <<
52 - $ref: /schemas/nvmem/nvmem-deprecated- <<
53 <<
54 unevaluatedProperties: false 47 unevaluatedProperties: false
55 48
56 description: | 49 description: |
57 An OTP memory region. Some flashes provi 50 An OTP memory region. Some flashes provide a one-time-programmable
58 memory whose content can either be progr 51 memory whose content can either be programmed by a user or is already
59 pre-programmed by the factory. Some flas 52 pre-programmed by the factory. Some flashes might provide both.
60 53
61 properties: 54 properties:
62 compatible: 55 compatible:
63 enum: 56 enum:
64 - user-otp 57 - user-otp
65 - factory-otp 58 - factory-otp
66 59
67 required: 60 required:
68 - compatible 61 - compatible
69 62
70 # This is a generic file other binding inherit 63 # This is a generic file other binding inherit from
71 additionalProperties: true 64 additionalProperties: true
72 65
73 examples: 66 examples:
74 - | 67 - |
75 spi { 68 spi {
76 #address-cells = <1>; 69 #address-cells = <1>;
77 #size-cells = <0>; 70 #size-cells = <0>;
78 71
79 flash@0 { 72 flash@0 {
80 reg = <0>; 73 reg = <0>;
81 compatible = "jedec,spi-nor"; 74 compatible = "jedec,spi-nor";
82 label = "System-firmware"; 75 label = "System-firmware";
83 }; 76 };
84 }; 77 };
85 78
86 - | 79 - |
87 spi { 80 spi {
88 #address-cells = <1>; 81 #address-cells = <1>;
89 #size-cells = <0>; 82 #size-cells = <0>;
90 83
91 flash@0 { 84 flash@0 {
92 reg = <0>; 85 reg = <0>;
93 compatible = "jedec,spi-nor"; 86 compatible = "jedec,spi-nor";
94 87
95 otp-1 { 88 otp-1 {
96 compatible = "factory-otp"; 89 compatible = "factory-otp";
97 #address-cells = <1>; 90 #address-cells = <1>;
98 #size-cells = <1>; 91 #size-cells = <1>;
99 92
100 electronic-serial-number@0 { 93 electronic-serial-number@0 {
101 reg = <0 8>; 94 reg = <0 8>;
102 }; 95 };
103 }; 96 };
104 97
105 otp-2 { 98 otp-2 {
106 compatible = "user-otp"; 99 compatible = "user-otp";
107 #address-cells = <1>; 100 #address-cells = <1>;
108 #size-cells = <1>; 101 #size-cells = <1>;
109 102
110 mac-address@0 { 103 mac-address@0 {
111 reg = <0 6>; 104 reg = <0 6>;
112 }; 105 };
113 }; 106 };
114 }; 107 };
115 }; 108 };
116 109
117 ... 110 ...
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.