boot.c 1.4 KB

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  1. /*
  2. * (C) Copyright 2000-2003
  3. * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
  4. *
  5. * SPDX-License-Identifier: GPL-2.0+
  6. */
  7. /*
  8. * Misc boot support
  9. */
  10. #include <common.h>
  11. #include <command.h>
  12. #include <net.h>
  13. #ifdef CONFIG_CMD_GO
  14. /* Allow ports to override the default behavior */
  15. __attribute__((weak))
  16. unsigned long do_go_exec(ulong (*entry)(int, char * const []), int argc,
  17. char * const argv[])
  18. {
  19. return entry (argc, argv);
  20. }
  21. static int do_go(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  22. {
  23. ulong addr, rc;
  24. int rcode = 0;
  25. if (argc < 2)
  26. return CMD_RET_USAGE;
  27. addr = simple_strtoul(argv[1], NULL, 16);
  28. printf ("## Starting application at 0x%08lX ...\n", addr);
  29. /*
  30. * pass address parameter as argv[0] (aka command name),
  31. * and all remaining args
  32. */
  33. rc = do_go_exec ((void *)addr, argc - 1, argv + 1);
  34. if (rc != 0) rcode = 1;
  35. printf ("## Application terminated, rc = 0x%lX\n", rc);
  36. return rcode;
  37. }
  38. /* -------------------------------------------------------------------- */
  39. U_BOOT_CMD(
  40. go, CONFIG_SYS_MAXARGS, 1, do_go,
  41. "start application at address 'addr'",
  42. "addr [arg ...]\n - start application at address 'addr'\n"
  43. " passing 'arg' as arguments"
  44. );
  45. #endif
  46. U_BOOT_CMD(
  47. reset, 1, 0, do_reset,
  48. "Perform RESET of the CPU",
  49. ""
  50. );
  51. #ifdef CONFIG_CMD_POWEROFF
  52. U_BOOT_CMD(
  53. poweroff, 1, 0, do_poweroff,
  54. "Perform POWEROFF of the device",
  55. ""
  56. );
  57. #endif