cmd/sb.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright 2018, Google Inc.
   4  * Written by Simon Glass <[email protected]>
   5  */
   6
   7 #include <command.h>
   8 #include <dm.h>
   9 #include <spl.h>
  10 #include <asm/global_data.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         struct spl_handoff *handoff = handoff_get();
  18
  19         if (handoff)
  20                 printf("SPL handoff magic %lx\n", handoff->arch.magic);
  21         else
  22                 printf("SPL handoff info not received\n");
  23
  24         return 0;
  25 #else
  26         printf("Command not supported\n");
  27
  28         return CMD_RET_USAGE;
  29 #endif
  30 }
  31
  32 static int do_sb_state(struct cmd_tbl *cmdtp, int flag, int argc,
  33                        char *const argv[])
  34 {
  35         struct sandbox_state *state;
  36
  37         state = state_get_current();
  38         state_show(state);
  39
  40         return 0;
  41 }
  42
  43 static struct cmd_tbl cmd_sb_sub[] = {
  44         U_BOOT_CMD_MKENT(handoff, 1, 0, do_sb_handoff, "", ""),
  45         U_BOOT_CMD_MKENT(state, 1, 0, do_sb_state, "", ""),
  46 };
  47
  48 static int do_sb(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
  49 {
  50         struct cmd_tbl *c;
  51
  52         /* Skip past 'sb' */
  53         argc--;
  54         argv++;
  55
  56         c = find_cmd_tbl(argv[0], cmd_sb_sub, ARRAY_SIZE(cmd_sb_sub));
  57         if (c)
  58                 return c->cmd(cmdtp, flag, argc, argv);
  59         else
  60                 return CMD_RET_USAGE;
  61 }
  62
  63 U_BOOT_CMD(
  64         sb,     8,      1,      do_sb,
  65         "Sandbox status commands",
  66         "handoff     - Show handoff data received from SPL\n"
  67         "sb state       - Show sandbox state"
  68 );