1CONFIG_SPL=y 2CONFIG_SYS_EXTRA_OPTIONS="USB_EHCI,SUNXI_GMAC,RGMII,MACPWR=SUNXI_GPA(21)" 3CONFIG_FDTFILE="sun6i-a31-hummingbird.dtb" 4+S:CONFIG_ARM=y 5+S:CONFIG_ARCH_SUNXI=y 6+S:CONFIG_MACH_SUN6I=y 7+S:CONFIG_TARGET_HUMMINGBIRD_A31=y 8+S:CONFIG_DRAM_CLK=312 9+S:CONFIG_DRAM_ZQ=251 10# Wifi power 11+S:CONFIG_AXP221_ALDO1_VOLT=3300 12# Vbus gpio for usb1 13+S:CONFIG_USB1_VBUS_PIN="PH24" 14# No Vbus gpio for usb2 15+S:CONFIG_USB2_VBUS_PIN="" 16