uboot/configs/A20-OLinuXino_MICRO_defconfig
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   1CONFIG_ARM=y
   2CONFIG_ARCH_SUNXI=y
   3CONFIG_DEFAULT_DEVICE_TREE="sun7i-a20-olinuxino-micro"
   4CONFIG_SPL=y
   5CONFIG_MACH_SUN7I=y
   6CONFIG_DRAM_CLK=384
   7CONFIG_MMC0_CD_PIN="PH1"
   8CONFIG_MMC3_CD_PIN="PH11"
   9CONFIG_MMC_SUNXI_SLOT_EXTRA=3
  10CONFIG_I2C1_ENABLE=y
  11CONFIG_VIDEO_VGA=y
  12CONFIG_SATAPWR="PB8"
  13CONFIG_AHCI=y
  14# CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
  15CONFIG_SPL_I2C=y
  16CONFIG_SCSI_AHCI=y
  17CONFIG_PHY_REALTEK=y
  18CONFIG_ETH_DESIGNWARE=y
  19CONFIG_MII=y
  20CONFIG_SUN7I_GMAC=y
  21CONFIG_SUN7I_GMAC_FORCE_TXERR=y
  22CONFIG_AXP_ALDO3_VOLT=2800
  23CONFIG_AXP_ALDO4_VOLT=2800
  24CONFIG_SCSI=y
  25CONFIG_USB_EHCI_HCD=y
  26CONFIG_USB_OHCI_HCD=y
  27