Other Parts Discussed in Thread: SYSCONFIG
Hello,
I am looking for ways to configure PLL (Phase Locked Loop) in Linux by using a Device Tree for AM62x SOC. The reason for changing the PLL settings is because I want to generate a specific UART functional clock frequency for a more accurate baud rate generation. The default functional clock frequency is 48MHz which is derived from a default PLL settings. Due to legacy issue in old product, I don't have many options in choosing uart baud rates. Unless I change the PLL settings, I wouldn't be able to get to the baud rate that I want and with an acceptable error. I can find the PLL settings to generate the required UART functional clock frequency by using the SYSCONFIG tool (cloud version) but the tool doesn't generate a dtsi file for the PLL settings. So, can you advise me on how to configure PLL by using a Device Tree? Or are there any other ways to change the PLL settings besides Device Tree? Can you point me to any sample codes for PLL configuration?
I do realize that by changing PLL settings, the other peripheral's clock will be affected but I do anticipate that, and I will have to readjust the clock rate for those affected peripherals.
Regards,
Chai
