uboot/configs/a64-olinuxino_defconfig
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   1CONFIG_ARM=y
   2CONFIG_ARCH_SUNXI=y
   3CONFIG_DEFAULT_DEVICE_TREE="sun50i-a64-olinuxino"
   4CONFIG_SPL=y
   5CONFIG_MACH_SUN50I=y
   6CONFIG_RESERVE_ALLWINNER_BOOT0_HEADER=y
   7CONFIG_MMC_SUNXI_SLOT_EXTRA=2
   8# CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
   9CONFIG_SUN8I_EMAC=y
  10CONFIG_USB_EHCI_HCD=y
  11CONFIG_USB_OHCI_HCD=y
  12