LXR uboot/common/cmd

   1/*
   2 * (C) Copyright 2000-2003
   3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   4 *
   5 * See file CREDITS for list of people who contributed to this
   6 * project.
   7 *
   8 * This program is free software; you can redistribute it and/or
   9 * modify it under the terms of the GNU General Public License as
  10 * published by the Free Software Foundation; either version 2 of
  11 * the License, or (at your option) any later version.
  12 *
  13 * This program is distributed in the hope that it will be useful,
  14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 * GNU General Public License for more details.
  17 *
  18 * You should have received a copy of the GNU General Public License
  19 * along with this program; if not, write to the Free Software
  20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21 * MA 02111-1307 USA
  22 */
  23
  24/*
  25 * Misc boot support
  26 */
  27#include <common.h>
  28#include <command.h>
  29#include <net.h>
  30
  31#ifdef CONFIG_CMD_GO
  32
  33/* Allow ports to override the default behavior */
  34__attribute__((weak))
  35unsigned long do_go_exec (ulong (*entry)(int, char * const []), int argc, char * const argv[])
  36{
  37        return entry (argc, argv);
  38}
  39
  40int do_go (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  41{
  42        ulong   addr, rc;
  43        int     rcode = 0;
  44
  45        if (argc < 2)
  46                return CMD_RET_USAGE;
  47
  48        addr = simple_strtoul(argv[1], NULL, 16);
  49
  50        printf ("## Starting application at 0x%08lX ...\n", addr);
  51
  52        /*
  53         * pass address parameter as argv[0] (aka command name),
  54         * and all remaining args
  55         */
  56        rc = do_go_exec ((void *)addr, argc - 1, argv + 1);
  57        if (rc != 0) rcode = 1;
  58
  59        printf ("## Application terminated, rc = 0x%lX\n", rc);
  60        return rcode;
  61}
  62
  63/* -------------------------------------------------------------------- */
  64
  65U_BOOT_CMD(
  66        go, CONFIG_SYS_MAXARGS, 1,      do_go,
  67        "start application at address 'addr'",
  68        "addr [arg ...]\n    - start application at address 'addr'\n"
  69        "      passing 'arg' as arguments"
  70);
  71
  72#endif
  73
  74U_BOOT_CMD(
  75        reset, 1, 0,    do_reset,
  76        "Perform RESET of the CPU",
  77        ""
  78);
  79