1CONFIG_SPL=y 2CONFIG_SYS_EXTRA_OPTIONS="MELE_M3,AXP209_POWER,SUNXI_GMAC,USB_EHCI" 3CONFIG_FDTFILE="sun7i-a20-m3.dtb" 4+S:CONFIG_MMC_SUNXI_SLOT_EXTRA=2 5+S:CONFIG_MMC0_CD_PIN="PH1" 6+S:CONFIG_ARM=y 7+S:CONFIG_TARGET_SUN7I=y 8