uboot/configs/pinetab_defconfig
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   1CONFIG_ARM=y
   2CONFIG_ARCH_SUNXI=y
   3CONFIG_DEFAULT_DEVICE_TREE="sun50i-a64-pinetab"
   4CONFIG_SPL=y
   5CONFIG_MACH_SUN50I=y
   6CONFIG_SUNXI_DRAM_LPDDR3_STOCK=y
   7CONFIG_DRAM_CLK=552
   8CONFIG_DRAM_ZQ=3881949
   9CONFIG_MMC_SUNXI_SLOT_EXTRA=2
  10# CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
  11