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/global_data.h>
  12 #include <asm/state.h>
  13
  14 static int do_sb_handoff(struct cmd_tbl *cmdtp, int flag, int argc,
  15                          char *const argv[])
  16 {
  17 #if CONFIG_IS_ENABLED(HANDOFF)
  18         if (gd->spl_handoff)
  19                 printf("SPL handoff magic %lx\n", gd->spl_handoff->arch.magic);
  20         else
  21                 printf("SPL handoff info not received\n");
  22
  23         return 0;
  24 #else
  25         printf("Command not supported\n");
  26
  27         return CMD_RET_USAGE;
  28 #endif
  29 }
  30
  31 static int do_sb_state(struct cmd_tbl *cmdtp, int flag, int argc,
  32                        char *const argv[])
  33 {
  34         struct sandbox_state *state;
  35
  36         state = state_get_current();
  37         state_show(state);
  38
  39         return 0;
  40 }
  41
  42 static struct cmd_tbl cmd_sb_sub[] = {
  43         U_BOOT_CMD_MKENT(handoff, 1, 0, do_sb_handoff, "", ""),
  44         U_BOOT_CMD_MKENT(state, 1, 0, do_sb_state, "", ""),
  45 };
  46
  47 static int do_sb(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
  48 {
  49         struct cmd_tbl *c;
  50
  51         /* Skip past 'sb' */
  52         argc--;
  53         argv++;
  54
  55         c = find_cmd_tbl(argv[0], cmd_sb_sub, ARRAY_SIZE(cmd_sb_sub));
  56         if (c)
  57                 return c->cmd(cmdtp, flag, argc, argv);
  58         else
  59                 return CMD_RET_USAGE;
  60 }
  61
  62 U_BOOT_CMD(
  63         sb,     8,      1,      do_sb,
  64         "Sandbox status commands",
  65         "handoff     - Show handoff data received from SPL\n"
  66         "sb state       - Show sandbox state"
  67 );