How to setup radius WPA2-EAP on OpenWrt?

In pure linux, i've managed to set up an EAP wifi access point using hostapd only (no freeradius installed) but I can't figure out how to to it on openwrt (I'm using X86 hardware) ? should I install freeradius3-default in openwrt or could it be done with the embedded radius support of hostapd ?

@elclaudio, welcome to the community!