CONFIG_TARGET_MX6UL_ISIOT=y
CONFIG_SPL_SERIAL_SUPPORT=y
CONFIG_SPL_WATCHDOG_SUPPORT=y
+# CONFIG_CMD_BMODE is not set
CONFIG_DEFAULT_DEVICE_TREE="imx6ul-isiot-nand"
CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=arch/arm/imx-common/spl_sd.cfg,ENV_IS_IN_NAND"
CONFIG_BOOTDELAY=3