1CONFIG_SPL=y 2CONFIG_SYS_EXTRA_OPTIONS="USB_EHCI" 3CONFIG_DEFAULT_DEVICE_TREE="sun4i-a10-mk802" 4CONFIG_USB2_VBUS_PIN="PH12" 5CONFIG_ARM=y 6CONFIG_ARCH_SUNXI=y 7CONFIG_MACH_SUN4I=y 8CONFIG_DRAM_CLK=360 9CONFIG_DRAM_ZQ=123 10CONFIG_DRAM_EMR1=0 11