+#define CONFIG_EXTRA_ENV_SETTINGS \
+ "upgrade=if mmc rescan && " \
+ "fatload mmc 0:1 ${loadaddr} u-boot-update.img && " \
+ "iminfo ${loadaddr} && source ${loadaddr}; then; else echo " \
+ "\"Fail to upgrade.\n" \
+ "Do you have u-boot-update.img and u-boot.head on first (FAT) SD card partition?\"" \
+ "; fi\0"