idt@idt-OptiPlex-9020:~/proj/roc-rk3399-pc$ ./FFTools/mkupdate/mkupdate.sh update
build/core/product_config.mk:227: *** Can not locate config makefile for product “rk3399”. Stop.
build/core/product_config.mk:227: *** Can not locate config makefile for product “rk3399”. Stop.
build/core/product_config.mk:227: *** Can not locate config makefile for product “rk3399”. Stop.
build/core/product_config.mk:227: *** Can not locate config makefile for product “rk3399”. Stop.
build/core/product_config.mk:227: *** Can not locate config makefile for product “rk3399”. Stop.
Can’t find toolchain for unknown architecture:
build/core/product_config.mk:227: *** Can not locate config makefile for product “rk3399”. Stop.
build/core/product_config.mk:227: *** Can not locate config makefile for product “rk3399”. Stop.
build/core/product_config.mk:227: *** Can not locate config makefile for product “rk3399”. Stop.
build/core/product_config.mk:227: *** Can not locate config makefile for product “rk3399”. Stop.
build/core/product_config.mk:227: *** Can not locate config makefile for product “rk3399”. Stop.
build/core/product_config.mk:227: *** Can not locate config makefile for product “rk3399”. Stop.