cmd_bootstage.c 2.1 KB

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  1. /*
  2. * Copyright (c) 2012, Google Inc. All rights reserved.
  3. *
  4. * SPDX-License-Identifier: GPL-2.0+
  5. */
  6. #include <common.h>
  7. #ifndef CONFIG_BOOTSTAGE_STASH
  8. #define CONFIG_BOOTSTAGE_STASH -1UL
  9. #define CONFIG_BOOTSTAGE_STASH_SIZE -1
  10. #endif
  11. static int do_bootstage_report(cmd_tbl_t *cmdtp, int flag, int argc,
  12. char * const argv[])
  13. {
  14. bootstage_report();
  15. return 0;
  16. }
  17. static int get_base_size(int argc, char * const argv[], ulong *basep,
  18. ulong *sizep)
  19. {
  20. char *endp;
  21. *basep = CONFIG_BOOTSTAGE_STASH;
  22. *sizep = CONFIG_BOOTSTAGE_STASH_SIZE;
  23. if (argc < 2)
  24. return 0;
  25. *basep = simple_strtoul(argv[1], &endp, 16);
  26. if (*argv[1] == 0 || *endp != 0)
  27. return -1;
  28. if (argc == 2)
  29. return 0;
  30. *sizep = simple_strtoul(argv[2], &endp, 16);
  31. if (*argv[2] == 0 || *endp != 0)
  32. return -1;
  33. return 0;
  34. }
  35. static int do_bootstage_stash(cmd_tbl_t *cmdtp, int flag, int argc,
  36. char * const argv[])
  37. {
  38. ulong base, size;
  39. int ret;
  40. if (get_base_size(argc, argv, &base, &size))
  41. return CMD_RET_USAGE;
  42. if (base == -1UL) {
  43. printf("No bootstage stash area defined\n");
  44. return 1;
  45. }
  46. if (0 == strcmp(argv[0], "stash"))
  47. ret = bootstage_stash((void *)base, size);
  48. else
  49. ret = bootstage_unstash((void *)base, size);
  50. if (ret)
  51. return 1;
  52. return 0;
  53. }
  54. static cmd_tbl_t cmd_bootstage_sub[] = {
  55. U_BOOT_CMD_MKENT(report, 2, 1, do_bootstage_report, "", ""),
  56. U_BOOT_CMD_MKENT(stash, 4, 0, do_bootstage_stash, "", ""),
  57. U_BOOT_CMD_MKENT(unstash, 4, 0, do_bootstage_stash, "", ""),
  58. };
  59. /*
  60. * Process a bootstage sub-command
  61. */
  62. static int do_boostage(cmd_tbl_t *cmdtp, int flag, int argc,
  63. char * const argv[])
  64. {
  65. cmd_tbl_t *c;
  66. /* Strip off leading 'bootstage' command argument */
  67. argc--;
  68. argv++;
  69. c = find_cmd_tbl(argv[0], cmd_bootstage_sub,
  70. ARRAY_SIZE(cmd_bootstage_sub));
  71. if (c)
  72. return c->cmd(cmdtp, flag, argc, argv);
  73. else
  74. return CMD_RET_USAGE;
  75. }
  76. U_BOOT_CMD(bootstage, 4, 1, do_boostage,
  77. "Boot stage command",
  78. " - check boot progress and timing\n"
  79. "report - Print a report\n"
  80. "stash [<start> [<size>]] - Stash data into memory\n"
  81. "unstash [<start> [<size>]] - Unstash data from memory"
  82. );