1 # SPDX-License-Identifier: (GPL-2.0-only OR BS 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2 2 %YAML 1.2
3 --- 3 ---
4 $id: http://devicetree.org/schemas/power/reset 4 $id: http://devicetree.org/schemas/power/reset/reboot-mode.yaml#
5 $schema: http://devicetree.org/meta-schemas/co 5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 6
7 title: Generic reboot mode core map 7 title: Generic reboot mode core map
8 8
9 maintainers: 9 maintainers:
10 - Andy Yan <andy.yan@rock-chips.com> 10 - Andy Yan <andy.yan@rock-chips.com>
11 11
12 description: | 12 description: |
13 This driver get reboot mode arguments and ca 13 This driver get reboot mode arguments and call the write
14 interface to store the magic value in specia 14 interface to store the magic value in special register
15 or ram. Then the bootloader can read it and 15 or ram. Then the bootloader can read it and take different
16 action according to the argument stored. 16 action according to the argument stored.
17 17
18 All mode properties are vendor specific, it 18 All mode properties are vendor specific, it is a indication to tell
19 the bootloader what to do when the system re 19 the bootloader what to do when the system reboots, and should be named
20 as mode-xxx = <magic> (xxx is mode name, mag 20 as mode-xxx = <magic> (xxx is mode name, magic should be a non-zero value).
21 21
22 For example, modes common Android platform a 22 For example, modes common Android platform are:
23 - normal: Normal reboot mode, system reboo 23 - normal: Normal reboot mode, system reboot with command "reboot".
24 - recovery: Android Recovery mode, it is a 24 - recovery: Android Recovery mode, it is a mode to format the device or update a new image.
25 - bootloader: Android fastboot mode, it's 25 - bootloader: Android fastboot mode, it's a mode to re-flash partitions on the Android based device.
26 - loader: A bootloader mode, it's a mode u 26 - loader: A bootloader mode, it's a mode used to download image on Rockchip platform,
27 usually used in development. 27 usually used in development.
28 28
29 properties: 29 properties:
30 mode-normal: 30 mode-normal:
31 $ref: /schemas/types.yaml#/definitions/uin 31 $ref: /schemas/types.yaml#/definitions/uint32
32 description: 32 description:
33 Default value to set on a reboot if no c 33 Default value to set on a reboot if no command was provided.
34 34
35 patternProperties: 35 patternProperties:
36 "^mode-.*$": 36 "^mode-.*$":
37 $ref: /schemas/types.yaml#/definitions/uin 37 $ref: /schemas/types.yaml#/definitions/uint32
38 38
39 additionalProperties: true 39 additionalProperties: true
40 40
41 examples: 41 examples:
42 - | 42 - |
43 reboot-mode { 43 reboot-mode {
44 mode-normal = <0>; 44 mode-normal = <0>;
45 mode-recovery = <1>; 45 mode-recovery = <1>;
46 mode-bootloader = <2>; 46 mode-bootloader = <2>;
47 mode-loader = <3>; 47 mode-loader = <3>;
48 }; 48 };
49 ... 49 ...
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