CONFIG_CMD_EXT4_WRITE=y
CONFIG_CMD_FAT=y
CONFIG_CMD_FS_GENERIC=y
+CONFIG_ENV_OVERWRITE=y
CONFIG_ENV_IS_IN_MMC=y
CONFIG_SYS_RELOC_GD_ENV_ADDR=y
CONFIG_FSL_USDHC=y
CONFIG_MII=y
+CONFIG_MXC_UART=y
CONFIG_USB=y
CONFIG_USB_STORAGE=y
CONFIG_USB_HOST_ETHER=y