1CONFIG_ARM=y 2CONFIG_ARCH_SUNXI=y 3CONFIG_MACH_SUN7I=y 4CONFIG_DRAM_CLK=384 5CONFIG_DEFAULT_DEVICE_TREE="sun7i-a20-mk808c" 6CONFIG_SPL=y 7CONFIG_SYS_EXTRA_OPTIONS="AXP209_POWER,USB_EHCI" 8