[U-Boot] Questions about loading U-Boot from ATF

Tom,

Can you help me (or point me to the proper persons) to understand the long term flow of booting ARMv8 U-Boot with ATF? We are trying to make changes. As you may know, we have been booting U-Boot for NXP ARMv8 platforms from EL3 and drop to EL2 with an in-house ATF-compatible monitor. I have seen some boards in U-Boot using SPL to load ATF. I want to see a flow of booting ATF first, then load U-Boot as BL33 image. Has any board done that?

York