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Documentation / devicetree / bindings / arm / msm / timer.txt


Based on kernel version 4.16.1. Page generated on 2018-04-09 11:52 EST.

1	* MSM Timer
2	
3	Properties:
4	
5	- compatible : Should at least contain "qcom,msm-timer". More specific
6	               properties specify which subsystem the timers are paired with.
7	
8	               "qcom,kpss-timer" - krait subsystem
9	               "qcom,scss-timer" - scorpion subsystem
10	
11	- interrupts : Interrupts for the debug timer, the first general purpose
12	               timer, and optionally a second general purpose timer, and
13	               optionally as well, 2 watchdog interrupts, in that order.
14	
15	- reg : Specifies the base address of the timer registers.
16	
17	- clocks: Reference to the parent clocks, one per output clock. The parents
18	          must appear in the same order as the clock names.
19	
20	- clock-names: The name of the clocks as free-form strings. They should be in
21	               the same order as the clocks.
22	
23	- clock-frequency : The frequency of the debug timer and the general purpose
24	                    timer(s) in Hz in that order.
25	
26	Optional:
27	
28	- cpu-offset : per-cpu offset used when the timer is accessed without the
29	               CPU remapping facilities. The offset is
30	               cpu-offset + (0x10000 * cpu-nr).
31	
32	Example:
33	
34	       timer@200a000 {
35	               compatible = "qcom,scss-timer", "qcom,msm-timer";
36	               interrupts = <1 1 0x301>,
37	                            <1 2 0x301>,
38	                            <1 3 0x301>,
39	                            <1 4 0x301>,
40	                            <1 5 0x301>;
41	               reg = <0x0200a000 0x100>;
42	               clock-frequency = <19200000>,
43	                                 <32768>;
44	               clocks = <&sleep_clk>;
45	               clock-names = "sleep";
46	               cpu-offset = <0x40000>;
47	       };
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