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