cmd/boot.c

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