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