Is it possible to disable the A72?

[capablegh]

Hello!

One of my interest in this board is to evaluate and experiment with the RockPro64. Is it possible, and how, to disable only the A72, and use on the A53? And I would like to have the A72 disabled from power-on. One evaluation is ARM Trustzone on the board, and as the first step want to evaluate it only with the A53.

Compile your kernel but remove the A72s from the device tree. (After boot you can assign processes to CPU etc etc but ...)

Thanks for your reply. Once Linux is booting it is too late for the Trustzone boot loaders. Like I mentioned in my previous reply, the need is for the A72 to be disabled much early so that it does not detected by the Trustzone bootloaders.