xref: /freebsd/sys/contrib/device-tree/Bindings/clock/alphascale,asm9260-clock-controller.yaml (revision 833e5d42ab135b0238e61c5b3c19b8619677cbfa)
1*833e5d42SEmmanuel Vadot# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2*833e5d42SEmmanuel Vadot%YAML 1.2
3*833e5d42SEmmanuel Vadot---
4*833e5d42SEmmanuel Vadot$id: http://devicetree.org/schemas/clock/alphascale,asm9260-clock-controller.yaml#
5*833e5d42SEmmanuel Vadot$schema: http://devicetree.org/meta-schemas/core.yaml#
6*833e5d42SEmmanuel Vadot
7*833e5d42SEmmanuel Vadottitle: Alphascale Clock Controller
8*833e5d42SEmmanuel Vadot
9*833e5d42SEmmanuel Vadotmaintainers:
10*833e5d42SEmmanuel Vadot  - Oleksij Rempel <linux@rempel-privat.de>
11*833e5d42SEmmanuel Vadot
12*833e5d42SEmmanuel Vadotdescription: |
13*833e5d42SEmmanuel Vadot  The ACC (Alphascale Clock Controller) is responsible for choosing proper
14*833e5d42SEmmanuel Vadot  clock source, setting dividers and clock gates.
15*833e5d42SEmmanuel Vadot
16*833e5d42SEmmanuel Vadot  Simple one-cell clock specifier format is used, where the only cell is used
17*833e5d42SEmmanuel Vadot  as an index of the clock inside the provider.
18*833e5d42SEmmanuel Vadot  It is encouraged to use dt-binding for clock index definitions. SoC specific
19*833e5d42SEmmanuel Vadot  dt-binding should be included to the device tree descriptor. For example
20*833e5d42SEmmanuel Vadot  Alphascale ASM9260:
21*833e5d42SEmmanuel Vadot
22*833e5d42SEmmanuel Vadot  #include <dt-bindings/clock/alphascale,asm9260.h>
23*833e5d42SEmmanuel Vadot
24*833e5d42SEmmanuel Vadot  This binding contains two types of clock providers:
25*833e5d42SEmmanuel Vadot
26*833e5d42SEmmanuel Vadot    _AHB_ - AHB gate;
27*833e5d42SEmmanuel Vadot    _SYS_ - adjustable clock source. Not all peripheral have _SYS_ clock provider.
28*833e5d42SEmmanuel Vadot
29*833e5d42SEmmanuel Vadot  All clock specific details can be found in the SoC documentation.
30*833e5d42SEmmanuel Vadot
31*833e5d42SEmmanuel Vadotproperties:
32*833e5d42SEmmanuel Vadot  compatible:
33*833e5d42SEmmanuel Vadot    const: alphascale,asm9260-clock-controller
34*833e5d42SEmmanuel Vadot
35*833e5d42SEmmanuel Vadot  reg:
36*833e5d42SEmmanuel Vadot    maxItems: 1
37*833e5d42SEmmanuel Vadot
38*833e5d42SEmmanuel Vadot  '#clock-cells':
39*833e5d42SEmmanuel Vadot    const: 1
40*833e5d42SEmmanuel Vadot
41*833e5d42SEmmanuel Vadot  clocks:
42*833e5d42SEmmanuel Vadot    maxItems: 1
43*833e5d42SEmmanuel Vadot
44*833e5d42SEmmanuel Vadotrequired:
45*833e5d42SEmmanuel Vadot  - compatible
46*833e5d42SEmmanuel Vadot  - reg
47*833e5d42SEmmanuel Vadot  - '#clock-cells'
48*833e5d42SEmmanuel Vadot
49*833e5d42SEmmanuel VadotadditionalProperties: false
50