1CONFIG_ARM=y 2CONFIG_ARCH_SUNXI=y 3CONFIG_MACH_SUN7I=y 4CONFIG_DRAM_CLK=408 5CONFIG_DRAM_ZQ=122 6CONFIG_USB1_VBUS_PIN="PH11" 7CONFIG_GMAC_TX_DELAY=3 8CONFIG_DEFAULT_DEVICE_TREE="sun7i-a20-pcduino3-nano" 9CONFIG_SPL=y 10CONFIG_SYS_EXTRA_OPTIONS="AXP209_POWER,SUNXI_GMAC,RGMII,AHCI,SATAPWR=SUNXI_GPH(2),USB_EHCI" 11CONFIG_ETH_DESIGNWARE=y 12