I investigate DVFS function of i.MX6UL.
In AN5170, The voltage levels of VDDARM and VDDSOC is shown in following Table1.
On the other hand, in i.MX Linux Reference Manual for i.MX6UL,
Dynamic Bus Frequency Driver has three set points.
- 1. High Frequency Setpoint
- 2. Audio Playback setpoint
- 3. Low Frequency setpoint
Does the table1 of AN5170 match those set points of Dynamic Bus Frequency Driver?
When High Frequency Setpoint is set, the voltage of VDDSOC and VDDARM in 528MHz is used.
May I have advice?