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Documentation / devicetree / bindings / cpufreq / cpufreq-spear.txt




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Based on kernel version 3.13. Page generated on 2014-01-20 22:00 EST.

1	SPEAr cpufreq driver
2	-------------------
3	
4	SPEAr SoC cpufreq driver for CPU frequency scaling.
5	It supports both uniprocessor (UP) and symmetric multiprocessor (SMP) systems
6	which share clock across all CPUs.
7	
8	Required properties:
9	- cpufreq_tbl: Table of frequencies CPU could be transitioned into, in the
10	  increasing order.
11	
12	Optional properties:
13	- clock-latency: Specify the possible maximum transition latency for clock, in
14	  unit of nanoseconds.
15	
16	Both required and optional properties listed above must be defined under node
17	/cpus/cpu@0.
18	
19	Examples:
20	--------
21	cpus {
22	
23		<...>
24	
25		cpu@0 {
26			compatible = "arm,cortex-a9";
27			reg = <0>;
28	
29			<...>
30	
31			cpufreq_tbl = < 166000
32					200000
33					250000
34					300000
35					400000
36					500000
37					600000 >;
38		};
39	
40		<...>
41	
42	};
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