[Prototype]What exactly do you mean by enabling only one? The switch between the cores are made depending on the applications that's running. If its intense, then high performance core else...

Actually yes! I do want to test my application on purely A53 cores and Purely A57 cores. Performance measurement will also be useful on either A53 or A57 alone. Quoting...

Is it possible to enable only A57 cores or only A53 cores.