cmd/boot.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * (C) Copyright 2000-2003
   4  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   5  */
   6
   7 /*
   8  * Misc boot support
   9  */
  10 #include <common.h>
  11 #include <command.h>
  12 #include <net.h>
  13
  14 #ifdef CONFIG_CMD_GO
  15
  16 /* Allow ports to override the default behavior */
  17 __attribute__((weak))
  18 unsigned long do_go_exec(ulong (*entry)(int, char * const []), int argc,
  19                                  char * const argv[])
  20 {
  21         return entry (argc, argv);
  22 }
  23
  24 static int do_go(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  25 {
  26         ulong   addr, rc;
  27         int     rcode = 0;
  28
  29         if (argc < 2)
  30                 return CMD_RET_USAGE;
  31
  32         addr = simple_strtoul(argv[1], NULL, 16);
  33
  34         printf ("## Starting application at 0x%08lX ...\n", addr);
  35
  36         /*
  37          * pass address parameter as argv[0] (aka command name),
  38          * and all remaining args
  39          */
  40         rc = do_go_exec ((void *)addr, argc - 1, argv + 1);
  41         if (rc != 0) rcode = 1;
  42
  43         printf ("## Application terminated, rc = 0x%lX\n", rc);
  44         return rcode;
  45 }
  46
  47 /* -------------------------------------------------------------------- */
  48
  49 U_BOOT_CMD(
  50         go, CONFIG_SYS_MAXARGS, 1,      do_go,
  51         "start application at address 'addr'",
  52         "addr [arg ...]\n    - start application at address 'addr'\n"
  53         "      passing 'arg' as arguments"
  54 );
  55
  56 #endif
  57
  58 U_BOOT_CMD(
  59         reset, 1, 0,    do_reset,
  60         "Perform RESET of the CPU",
  61         ""
  62 );
  63
  64 #ifdef CONFIG_CMD_POWEROFF
  65 U_BOOT_CMD(
  66         poweroff, 1, 0, do_poweroff,
  67         "Perform POWEROFF of the device",
  68         ""
  69 );
  70 #endif