cmd/sb.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright 2018, Google Inc.
   4  * Written by Simon Glass <sjg@chromium.org>
   5  */
   6
   7 #include <common.h>
   8 #include <command.h>
   9 #include <dm.h>
  10 #include <spl.h>
  11 #include <asm/state.h>
  12
  13 static int do_sb_handoff(struct cmd_tbl *cmdtp, int flag, int argc,
  14                          char *const argv[])
  15 {
  16 #if CONFIG_IS_ENABLED(HANDOFF)
  17         if (gd->spl_handoff)
  18                 printf("SPL handoff magic %lx\n", gd->spl_handoff->arch.magic);
  19         else
  20                 printf("SPL handoff info not received\n");
  21
  22         return 0;
  23 #else
  24         printf("Command not supported\n");
  25
  26         return CMD_RET_USAGE;
  27 #endif
  28 }
  29
  30 static int do_sb_state(struct cmd_tbl *cmdtp, int flag, int argc,
  31                        char *const argv[])
  32 {
  33         struct sandbox_state *state;
  34
  35         state = state_get_current();
  36         state_show(state);
  37
  38         return 0;
  39 }
  40
  41 static struct cmd_tbl cmd_sb_sub[] = {
  42         U_BOOT_CMD_MKENT(handoff, 1, 0, do_sb_handoff, "", ""),
  43         U_BOOT_CMD_MKENT(state, 1, 0, do_sb_state, "", ""),
  44 };
  45
  46 static int do_sb(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
  47 {
  48         struct cmd_tbl *c;
  49
  50         /* Skip past 'sb' */
  51         argc--;
  52         argv++;
  53
  54         c = find_cmd_tbl(argv[0], cmd_sb_sub, ARRAY_SIZE(cmd_sb_sub));
  55         if (c)
  56                 return c->cmd(cmdtp, flag, argc, argv);
  57         else
  58                 return CMD_RET_USAGE;
  59 }
  60
  61 U_BOOT_CMD(
  62         sb,     8,      1,      do_sb,
  63         "Sandbox status commands",
  64         "handoff     - Show handoff data received from SPL\n"
  65         "sb state       - Show sandbox state"
  66 );