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We are developing low-level module-specific drivers for AM5728 device using the bare-metal approach. The question is about the Operational performance points (OPP). In AM572x TRM Chapter-26.2 USB3_PHY Subsystem Low-Level Programming Model, the first step is "Set the startup low-performance OPP in the appropriate PRCM registers."
1) Does this mean can we configure OPP for any specific module or is there a standard setup procedure to configure OPP from voltage domain level? If so, how can we do that?
2) As per device data manual, Recommended operation conditions are given for different modules (section 5.4,5.5) we know the default voltage values for different parameters how can we alter the voltages for these parameters?
3) From the definition of OPP “The set of discrete tuples consisting of frequency and voltage pairs that the device will support per domain are called Operating Performance Points or OPPs.” What are the supported corresponding frequencies and where can we find them?
4) How does the Low-performance OPP will affect the USB3_PHY Subsystem?
