xref: /linux/Documentation/devicetree/bindings/reset/ti,sci-reset.yaml (revision a4eb44a6435d6d8f9e642407a4a06f65eb90ca04) 
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 node bindings
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  http://processors.wiki.ti.com/index.php/TISCI 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