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4209932211
SPEAr is an ARM based family of SoCs. This patch adds in support of cpufreq driver for SPEAr SoCs. It is supported via DT only and so bindings are present in binding document. Signed-off-by: Deepak Sikri <deepak.sikri@st.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
42 lines
750 B
Text
42 lines
750 B
Text
SPEAr cpufreq driver
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-------------------
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SPEAr SoC cpufreq driver for CPU frequency scaling.
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It supports both uniprocessor (UP) and symmetric multiprocessor (SMP) systems
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which share clock across all CPUs.
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Required properties:
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- cpufreq_tbl: Table of frequencies CPU could be transitioned into, in the
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increasing order.
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Optional properties:
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- clock-latency: Specify the possible maximum transition latency for clock, in
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unit of nanoseconds.
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Both required and optional properties listed above must be defined under node
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/cpus/cpu@0.
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Examples:
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--------
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cpus {
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<...>
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cpu@0 {
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compatible = "arm,cortex-a9";
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reg = <0>;
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<...>
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cpufreq_tbl = < 166000
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200000
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250000
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300000
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400000
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500000
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600000 >;
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};
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<...>
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};
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