1CONFIG_ARM=y 2CONFIG_ARCH_SUNXI=y 3CONFIG_MACH_SUN6I=y 4CONFIG_DRAM_CLK=240 5CONFIG_DRAM_ZQ=251 6CONFIG_USB1_VBUS_PIN="" 7CONFIG_DEFAULT_DEVICE_TREE="sun6i-a31-colombus" 8CONFIG_SPL=y 9CONFIG_SYS_EXTRA_OPTIONS="USB_EHCI,SUNXI_GMAC" 10CONFIG_CMD_SETEXPR=y 11CONFIG_CMD_NET=y 12CONFIG_ETH_DESIGNWARE=y 13CONFIG_AXP221_ALDO1_VOLT=3300 14