cmd/bootstage.c

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