SPRAD41 May 2022 AM623 , AM625
Dynamic Frequency Scaling (DFS) is a power management technique that dynamically scales the operating frequency across device Operating Performance Points (OPP). An OPP is a voltage/frequency pair that defines a specific power state. The software controls the clock frequency for each OPP to adjust the performance and power to the optimum point. The device supports DFS for Cortex-A53 only.
The AM62x processor supports lower bus frequency operation as OPP Low. The OPP Low must be configured at boot time. In OPP Low, the main CBASS clock frequency is reduced in half to lower active power consumption with reduced performance. The performance of some peripheral modules is limited or not available in this operating condition.