uboot/configs/pinebook_defconfig
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   1CONFIG_ARM=y
   2CONFIG_ARCH_SUNXI=y
   3CONFIG_DEFAULT_DEVICE_TREE="sun50i-a64-pinebook"
   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
  10CONFIG_R_I2C_ENABLE=y
  11CONFIG_SPL_SYS_I2C_LEGACY=y
  12CONFIG_SYS_I2C_MVTWSI=y
  13CONFIG_DM_REGULATOR_FIXED=y
  14CONFIG_DM_PWM=y
  15CONFIG_PWM_SUNXI=y
  16CONFIG_USB_EHCI_HCD=y
  17CONFIG_USB_OHCI_HCD=y
  18# CONFIG_USB_GADGET is not set
  19CONFIG_VIDEO_BRIDGE=y
  20CONFIG_VIDEO_BRIDGE_ANALOGIX_ANX6345=y
  21