Sunxi (pine64-lts) SPL load BL32

I am attempting to boot the Pine64-lts with a Trusted OS. In the ARM-TF documentation it states "make sure the loader (SPL) loads the Trusted OS binary to the beginning of DRAM (0x40000000)." I have yet to find a mechanism by which U-Boot's SPL for this platform can be configured to do this. Any help would be appreciated.

Thanks, Adam