92 lines
2.3 KiB
C
92 lines
2.3 KiB
C
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/*
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* (C) Copyright 2000-2003
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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/*
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* Misc boot support
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*/
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#include <common.h>
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#include <command.h>
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#include <net.h>
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/* -------------------------------------------------------------------- */
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int do_go (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
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{
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#if defined(CONFIG_I386)
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DECLARE_GLOBAL_DATA_PTR;
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#endif
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ulong addr, rc;
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int rcode = 0;
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if (argc < 2) {
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printf ("Usage:\n%s\n", cmdtp->usage);
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return 1;
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}
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addr = simple_strtoul(argv[1], NULL, 16);
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printf ("## Starting application at 0x%08lX ...\n", addr);
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/*
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* pass address parameter as argv[0] (aka command name),
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* and all remaining args
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*/
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#if defined(CONFIG_I386)
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/*
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* x86 does not use a dedicated register to pass the pointer
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* to the global_data
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*/
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argv[0] = (char *)gd;
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#endif
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#if !defined(CONFIG_NIOS)
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rc = ((ulong (*)(int, char *[]))addr) (--argc, &argv[1]);
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#else
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/*
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* Nios function pointers are address >> 1
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*/
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rc = ((ulong (*)(int, char *[]))(addr>>1)) (--argc, &argv[1]);
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#endif
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if (rc != 0) rcode = 1;
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printf ("## Application terminated, rc = 0x%lX\n", rc);
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return rcode;
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}
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/* -------------------------------------------------------------------- */
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U_BOOT_CMD(
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go, CFG_MAXARGS, 1, do_go,
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"go - start application at address 'addr'\n",
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"addr [arg ...]\n - start application at address 'addr'\n"
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" passing 'arg' as arguments\n"
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);
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extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
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U_BOOT_CMD(
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reset, 1, 0, do_reset,
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"reset - Perform RESET of the CPU\n",
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NULL
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);
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