xref: /freebsd/sys/contrib/device-tree/Bindings/clock/qcom,hfpll.txt (revision c7a063741720ef81d4caa4613242579d12f1d605)
1High-Frequency PLL (HFPLL)
2
3PROPERTIES
4
5- compatible:
6	Usage: required
7	Value type: <string>:
8		shall contain only one of the following. The generic
9		compatible "qcom,hfpll" should be also included.
10
11                        "qcom,hfpll-ipq8064", "qcom,hfpll"
12                        "qcom,hfpll-apq8064", "qcom,hfpll"
13                        "qcom,hfpll-msm8974", "qcom,hfpll"
14                        "qcom,hfpll-msm8960", "qcom,hfpll"
15
16- reg:
17	Usage: required
18	Value type: <prop-encoded-array>
19	Definition: address and size of HPLL registers. An optional second
20		    element specifies the address and size of the alias
21		    register region.
22
23- clocks:
24	Usage: required
25	Value type: <prop-encoded-array>
26	Definition: reference to the xo clock.
27
28- clock-names:
29	Usage: required
30	Value type: <stringlist>
31	Definition: must be "xo".
32
33- clock-output-names:
34	Usage: required
35	Value type: <string>
36	Definition: Name of the PLL. Typically hfpllX where X is a CPU number
37		    starting at 0. Otherwise hfpll_Y where Y is more specific
38		    such as "l2".
39
40Example:
41
421) An HFPLL for the L2 cache.
43
44	clock-controller@f9016000 {
45		compatible = "qcom,hfpll-ipq8064", "qcom,hfpll";
46		reg = <0xf9016000 0x30>;
47		clocks = <&xo_board>;
48		clock-names = "xo";
49		clock-output-names = "hfpll_l2";
50	};
51
522) An HFPLL for CPU0. This HFPLL has the alias register region.
53
54	clock-controller@f908a000 {
55		compatible = "qcom,hfpll-ipq8064", "qcom,hfpll";
56		reg = <0xf908a000 0x30>, <0xf900a000 0x30>;
57		clocks = <&xo_board>;
58		clock-names = "xo";
59		clock-output-names = "hfpll0";
60	};
61