1 # SPDX-License-Identifier: GPL-2.0-only OR BSD 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/clock/starf 4 $id: http://devicetree.org/schemas/clock/starfive,jh7110-pll.yaml#
5 $schema: http://devicetree.org/meta-schemas/co 5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 6
7 title: StarFive JH7110 PLL Clock Generator 7 title: StarFive JH7110 PLL Clock Generator
8 8
9 description: 9 description:
10 These PLLs are high speed, low jitter freque 10 These PLLs are high speed, low jitter frequency synthesizers in the JH7110.
11 Each PLL works in integer mode or fraction m 11 Each PLL works in integer mode or fraction mode, with configuration
12 registers in the sys syscon. So the PLLs nod 12 registers in the sys syscon. So the PLLs node should be a child of
13 SYS-SYSCON node. 13 SYS-SYSCON node.
14 The formula for calculating frequency is 14 The formula for calculating frequency is
15 Fvco = Fref * (NI + NF) / M / Q1 15 Fvco = Fref * (NI + NF) / M / Q1
16 16
17 maintainers: 17 maintainers:
18 - Xingyu Wu <xingyu.wu@starfivetech.com> 18 - Xingyu Wu <xingyu.wu@starfivetech.com>
19 19
20 properties: 20 properties:
21 compatible: 21 compatible:
22 const: starfive,jh7110-pll 22 const: starfive,jh7110-pll
23 23
24 clocks: 24 clocks:
25 maxItems: 1 25 maxItems: 1
26 description: Main Oscillator (24 MHz) 26 description: Main Oscillator (24 MHz)
27 27
28 '#clock-cells': 28 '#clock-cells':
29 const: 1 29 const: 1
30 description: 30 description:
31 See <dt-bindings/clock/starfive,jh7110-c 31 See <dt-bindings/clock/starfive,jh7110-crg.h> for valid indices.
32 32
33 required: 33 required:
34 - compatible 34 - compatible
35 - clocks 35 - clocks
36 - '#clock-cells' 36 - '#clock-cells'
37 37
38 additionalProperties: false 38 additionalProperties: false
39 39
40 examples: 40 examples:
41 - | 41 - |
42 clock-controller { 42 clock-controller {
43 compatible = "starfive,jh7110-pll"; 43 compatible = "starfive,jh7110-pll";
44 clocks = <&osc>; 44 clocks = <&osc>;
45 #clock-cells = <1>; 45 #clock-cells = <1>;
46 }; 46 };
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