cmd/bootstage.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (c) 2012, Google Inc. All rights reserved.
   4  */
   5
   6 #include <bootstage.h>
   7 #include <command.h>
   8 #include <vsprintf.h>
   9
  10 static int do_bootstage_report(struct cmd_tbl *cmdtp, int flag, int argc,
  11                                char *const argv[])
  12 {
  13         bootstage_report();
  14
  15         return 0;
  16 }
  17
  18 #if IS_ENABLED(CONFIG_BOOTSTAGE_STASH)
  19 static int get_base_size(int argc, char *const argv[], ulong *basep,
  20                          ulong *sizep)
  21 {
  22         char *endp;
  23
  24         *basep = CONFIG_BOOTSTAGE_STASH_ADDR;
  25         *sizep = CONFIG_BOOTSTAGE_STASH_SIZE;
  26         if (argc < 2)
  27                 return 0;
  28         *basep = hextoul(argv[1], &endp);
  29         if (*argv[1] == 0 || *endp != 0)
  30                 return -1;
  31         if (argc == 2)
  32                 return 0;
  33         *sizep = hextoul(argv[2], &endp);
  34         if (*argv[2] == 0 || *endp != 0)
  35                 return -1;
  36
  37         return 0;
  38 }
  39
  40 static int do_bootstage_stash(struct cmd_tbl *cmdtp, int flag, int argc,
  41                               char *const argv[])
  42 {
  43         ulong base, size;
  44         int ret;
  45
  46         if (get_base_size(argc, argv, &base, &size))
  47                 return CMD_RET_USAGE;
  48         if (base == -1UL) {
  49                 printf("No bootstage stash area defined\n");
  50                 return 1;
  51         }
  52
  53         if (0 == strcmp(argv[0], "stash"))
  54                 ret = bootstage_stash((void *)base, size);
  55         else
  56                 ret = bootstage_unstash((void *)base, size);
  57         if (ret)
  58                 return 1;
  59
  60         return 0;
  61 }
  62 #endif
  63
  64 static struct cmd_tbl cmd_bootstage_sub[] = {
  65         U_BOOT_CMD_MKENT(report, 2, 1, do_bootstage_report, "", ""),
  66 #if IS_ENABLED(CONFIG_BOOTSTAGE_STASH)
  67         U_BOOT_CMD_MKENT(stash, 4, 0, do_bootstage_stash, "", ""),
  68         U_BOOT_CMD_MKENT(unstash, 4, 0, do_bootstage_stash, "", ""),
  69 #endif
  70 };
  71
  72 /*
  73  * Process a bootstage sub-command
  74  */
  75 static int do_boostage(struct cmd_tbl *cmdtp, int flag, int argc,
  76                        char *const argv[])
  77 {
  78         struct cmd_tbl *c;
  79
  80         /* Strip off leading 'bootstage' command argument */
  81         argc--;
  82         argv++;
  83
  84         c = find_cmd_tbl(argv[0], cmd_bootstage_sub,
  85                          ARRAY_SIZE(cmd_bootstage_sub));
  86
  87         if (c)
  88                 return c->cmd(cmdtp, flag, argc, argv);
  89         else
  90                 return CMD_RET_USAGE;
  91 }
  92
  93 U_BOOT_CMD(bootstage, 4, 1, do_boostage,
  94         "Boot stage command",
  95         " - check boot progress and timing\n"
  96         "report                      - Print a report\n"
  97 #if IS_ENABLED(CONFIG_BOOTSTAGE_STASH)
  98         "stash [<start> [<size>]]    - Stash data into memory\n"
  99         "unstash [<start> [<size>]]  - Unstash data from memory\n"
 100 #endif
 101 );