common/cmd_bootstage.c

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