Raspberry Pi 3 aarch64 / cannot initialize EGL display

[pablojr]

Hi,

I cross-compiled Qt5 for aarch64 with OpenGL support. When I try to run a demo program in the RPi device, it fails with message:
cannot initialize egl display

I checked with lsmod and found vc4 module loaded, althouth I don't know how/if I can configure it.
On the other hand, most of the posts I found relate to the vc4-kms-v3d module provided with the 32 bit archlinuxARM image (binaries taken directly from Raspberry Foundation(

What am I missing to have EGL support under RPi aarch64?

Thanks. Pablo