+void main_loop(void)
+{
+#ifndef CONFIG_SYS_HUSH_PARSER
+ static char lastcommand[CONFIG_SYS_CBSIZE] = { 0, };
+ int len;
+ int rc = 1;
+ int flag;
+#endif
+#ifdef CONFIG_PREBOOT
+ char *p;
+#endif
+
+ bootstage_mark_name(BOOTSTAGE_ID_MAIN_LOOP, "main_loop");
+
+#ifdef CONFIG_MODEM_SUPPORT
+ debug("DEBUG: main_loop: do_mdm_init=%d\n", do_mdm_init);
+ if (do_mdm_init) {
+ char *str = strdup(getenv("mdm_cmd"));
+ setenv("preboot", str); /* set or delete definition */
+ if (str != NULL)
+ free(str);
+ mdm_init(); /* wait for modem connection */
+ }
+#endif /* CONFIG_MODEM_SUPPORT */
+
+#ifdef CONFIG_VERSION_VARIABLE
+ {
+ setenv("ver", version_string); /* set version variable */
+ }
+#endif /* CONFIG_VERSION_VARIABLE */
+
+#ifdef CONFIG_SYS_HUSH_PARSER
+ u_boot_hush_start();
+#endif
+
+#if defined(CONFIG_HUSH_INIT_VAR)
+ hush_init_var();
+#endif
+
+#ifdef CONFIG_PREBOOT
+ p = getenv("preboot");
+ if (p != NULL) {
+# ifdef CONFIG_AUTOBOOT_KEYED
+ int prev = disable_ctrlc(1); /* disable Control C checking */
+# endif
+
+ run_command_list(p, -1, 0);
+
+# ifdef CONFIG_AUTOBOOT_KEYED
+ disable_ctrlc(prev); /* restore Control C checking */
+# endif
+ }
+#endif /* CONFIG_PREBOOT */
+
+#if defined(CONFIG_UPDATE_TFTP)
+ update_tftp(0UL);
+#endif /* CONFIG_UPDATE_TFTP */
+
+#ifdef CONFIG_BOOTDELAY
+ process_boot_delay();
+#endif