-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);
-#if defined(CONFIG_CMD_I2C)
+unsigned long simple_strtoul(const char *cp, char **endp, unsigned int base);
+int strict_strtoul(const char *cp, unsigned int base, unsigned long *res);
+char *env_get(const char *name);
+int env_set(const char *varname, const char *value);
+long simple_strtol(const char *cp, char **endp, unsigned int base);
+int strcmp(const char *cs, const char *ct);
+unsigned long ustrtoul(const char *cp, char **endp, unsigned int base);
+unsigned long long ustrtoull(const char *cp, char **endp, unsigned int base);
+#if defined(CONFIG_CMD_I2C) && !defined(CONFIG_DM_I2C)