+void vprintf(const char *, va_list);
+void do_reset (void);
+unsigned long simple_strtoul(const char *cp,char **endp,unsigned int base);
+char *getenv (char *name);
+void setenv (char *varname, char *varvalue);
+#if (CONFIG_COMMANDS & CFG_CMD_I2C)
+int i2c_write (uchar, uint, int , uchar* , int);
+int i2c_read (uchar, uint, int , uchar* , int);
+#endif /* CFG_CMD_I2C */