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bootloader/u-boot_2015_04/common/main.c 1.88 KB
6b13f685e   김민수   BSP 최초 추가
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  /*
   * (C) Copyright 2000
   * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   *
   * SPDX-License-Identifier:	GPL-2.0+
   */
  
  /* #define	DEBUG	*/
  
  #include <common.h>
  #include <autoboot.h>
  #include <cli.h>
  #include <version.h>
  
  DECLARE_GLOBAL_DATA_PTR;
  
  /*
   * Board-specific Platform code can reimplement show_boot_progress () if needed
   */
  __weak void show_boot_progress(int val) {}
  
  static void modem_init(void)
  {
  #ifdef CONFIG_MODEM_SUPPORT
  	debug("DEBUG: main_loop:   gd->do_mdm_init=%lu
  ", gd->do_mdm_init);
  	if (gd->do_mdm_init) {
  		char *str = getenv("mdm_cmd");
  
  		setenv("preboot", str);  /* set or delete definition */
  		mdm_init(); /* wait for modem connection */
  	}
  #endif  /* CONFIG_MODEM_SUPPORT */
  }
  
  static void run_preboot_environment_command(void)
  {
  #ifdef CONFIG_PREBOOT
  	char *p;
  
  	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 */
  }
  
  /* We come here after U-Boot is initialised and ready to process commands */
  void main_loop(void)
  {
  	const char *s;
  
  	bootstage_mark_name(BOOTSTAGE_ID_MAIN_LOOP, "main_loop");
  
  #ifndef CONFIG_SYS_GENERIC_BOARD
  	puts("Warning: Your board does not use generic board. Please read
  ");
  	puts("doc/README.generic-board and take action. Boards not
  ");
  	puts("upgraded by the late 2014 may break or be removed.
  ");
  #endif
  
  	modem_init();
  #ifdef CONFIG_VERSION_VARIABLE
  	setenv("ver", version_string);  /* set version variable */
  #endif /* CONFIG_VERSION_VARIABLE */
  
  	cli_init();
  
  	run_preboot_environment_command();
  
  #if defined(CONFIG_UPDATE_TFTP)
  	update_tftp(0UL);
  #endif /* CONFIG_UPDATE_TFTP */
  
  	s = bootdelay_process();
  	if (cli_process_fdt(&s))
  		cli_secure_boot_cmd(s);
  
  	autoboot_command(s);
  
  	cli_loop();
  }