$ make uniphier_ld20_defconfig
$ make CROSS_COMPILE=aarch64-linux-gnu-
+PXs3 reference board:
+ $ make uniphier_v8_defconfig
+ $ make CROSS_COMPILE=aarch64-linux-gnu- DEVICE_TREE=uniphier-pxs3-ref
+
You may wish to change the "CROSS_COMPILE=..." to use your favorite compiler.