xref: /linux/Documentation/devicetree/bindings/reset/ti,sci-reset.yaml (revision 46e6acfe3501fa938af9c5bd730f0020235b08a2) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/reset/ti,sci-reset.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: TI-SCI reset controller
8
9maintainers:
10  - Nishanth Menon <nm@ti.com>
11
12description: |
13  Some TI SoCs contain a system controller (like the Power Management Micro
14  Controller (PMMC) on Keystone 66AK2G SoC) that are responsible for controlling
15  the state of the various hardware modules present on the SoC. Communication
16  between the host processor running an OS and the system controller happens
17  through a protocol called TI System Control Interface (TI-SCI protocol).
18
19  This reset controller node uses the TI SCI protocol to perform the reset
20  management of various hardware modules present on the SoC. Must be a child
21  node of the associated TI-SCI system controller node.
22
23properties:
24  $nodename:
25    pattern: "^reset-controller$"
26
27  compatible:
28    const: ti,sci-reset
29
30  "#reset-cells":
31    const: 2
32    description:
33      The two cells represent values that the TI-SCI controller defines.
34
35      The first cell should contain the device ID.
36
37      The second cell should contain the reset mask corresponding to the device
38      used by system controller.
39
40      Please see https://software-dl.ti.com/tisci/esd/latest/index.html for
41      protocol documentation for the values to be used for different devices.
42
43
44additionalProperties: false
45
46examples:
47  - |
48    k3_reset: reset-controller {
49        compatible = "ti,sci-reset";
50        #reset-cells = <2>;
51    };
52