1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/clock/ti,sci-clk.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: TI-SCI clock controller
8
9 maintainers:
10 - Nishanth Menon <nm@ti.com>
11
12 description: |
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 clock controller node uses the TI SCI protocol to perform various clock
20 management of various hardware modules (devices) present on the SoC. This
21 node must be a child node of the associated TI-SCI system controller node.
22
23 properties:
24 $nodename:
25 pattern: "^clock-controller$"
26
27 compatible:
28 const: ti,k2g-sci-clk
29
30 "#clock-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 clock ID.
38
39 Please see https://software-dl.ti.com/tisci/esd/latest/index.html for
40 protocol documentation for the values to be used for different devices.
41
42 additionalProperties: false
43
44 examples:
45 - |
46 k3_clks: clock-controller {
47 compatible = "ti,k2g-sci-clk";
48 #clock-cells = <2>;
49 };
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