#define CONFIG_SYS_PROMPT "U-Boot (BuR V2.0)# "
#define CONFIG_SYS_CONSOLE_INFO_QUIET
#define CONFIG_ENV_OVERWRITE /* Overwrite ethaddr / serial# */
+#define CONFIG_SYS_CONSOLE_IS_IN_ENV
+#define CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE
/* As stated above, the following choices are optional. */
#define CONFIG_SYS_LONGHELP