38 lines
927 B
Plaintext
38 lines
927 B
Plaintext
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i.MX CPUFreq-DT OPP bindings
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================================
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Certain i.MX SoCs support different OPPs depending on the "market segment" and
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"speed grading" value which are written in fuses. These bits are combined with
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the opp-supported-hw values for each OPP to check if the OPP is allowed.
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Required properties:
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--------------------
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For each opp entry in 'operating-points-v2' table:
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- opp-supported-hw: Two bitmaps indicating:
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- Supported speed grade mask
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- Supported market segment mask
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0: Consumer
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1: Extended Consumer
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2: Industrial
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3: Automotive
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Example:
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--------
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opp_table {
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compatible = "operating-points-v2";
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opp-1000000000 {
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opp-hz = /bits/ 64 <1000000000>;
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/* grade >= 0, consumer only */
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opp-supported-hw = <0xf>, <0x3>;
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};
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opp-1300000000 {
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opp-hz = /bits/ 64 <1300000000>;
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opp-microvolt = <1000000>;
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/* grade >= 1, all segments */
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opp-supported-hw = <0xe>, <0x7>;
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};
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}
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