+unsigned long simple_strtoul(const char *cp,char **endp,unsigned int base);
+char *getenv (char *name);
+int setenv (char *varname, char *varvalue);
+long simple_strtol(const char *cp,char **endp,unsigned int base);
+int strcmp(const char * cs,const char * ct);
+int ustrtoul(const char *cp, char **endp, unsigned int base);
+#ifdef CONFIG_HAS_UID
+void forceenv (char *varname, char *varvalue);
+#endif
+#if defined(CONFIG_CMD_I2C)