0001 i.MX CPUFreq-DT OPP bindings
0002 ================================
0003
0004 Certain i.MX SoCs support different OPPs depending on the "market segment" and
0005 "speed grading" value which are written in fuses. These bits are combined with
0006 the opp-supported-hw values for each OPP to check if the OPP is allowed.
0007
0008 Required properties:
0009 --------------------
0010
0011 For each opp entry in 'operating-points-v2' table:
0012 - opp-supported-hw: Two bitmaps indicating:
0013 - Supported speed grade mask
0014 - Supported market segment mask
0015 0: Consumer
0016 1: Extended Consumer
0017 2: Industrial
0018 3: Automotive
0019
0020 Example:
0021 --------
0022
0023 opp_table {
0024 compatible = "operating-points-v2";
0025 opp-1000000000 {
0026 opp-hz = /bits/ 64 <1000000000>;
0027 /* grade >= 0, consumer only */
0028 opp-supported-hw = <0xf>, <0x3>;
0029 };
0030
0031 opp-1300000000 {
0032 opp-hz = /bits/ 64 <1300000000>;
0033 opp-microvolt = <1000000>;
0034 /* grade >= 1, all segments */
0035 opp-supported-hw = <0xe>, <0x7>;
0036 };
0037 }
