-CONFIG_USE_PREBOOT=y
-CONFIG_SPL_I2C_SUPPORT=y
-# CONFIG_CMD_FLASH is not set
-# CONFIG_SPL_DOS_PARTITION is not set
-# CONFIG_SPL_EFI_PARTITION is not set
-CONFIG_DEFAULT_DEVICE_TREE="sun7i-a20-wexler-tab7200"
-CONFIG_SYS_RELOC_GD_ENV_ADDR=y
+CONFIG_SPL_I2C=y
+CONFIG_SYS_I2C_MVTWSI=y
+CONFIG_SYS_I2C_SLAVE=0x7f
+CONFIG_SYS_I2C_SPEED=400000
+CONFIG_REGULATOR_AXP_USB_POWER=y