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wdenkfe8c2802002-11-03 00:38:21 +00001/*
wdenk8bde7f72003-06-27 21:31:46 +00002 * (C) Copyright 2000-2003
wdenkfe8c2802002-11-03 00:38:21 +00003 * 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/*
wdenk8bde7f72003-06-27 21:31:46 +000025 * Misc boot support
wdenkfe8c2802002-11-03 00:38:21 +000026 */
27#include <common.h>
28#include <command.h>
wdenkfe8c2802002-11-03 00:38:21 +000029#include <net.h>
wdenkfe8c2802002-11-03 00:38:21 +000030
Wolfgang Denkd87080b2006-03-31 18:32:53 +020031#if defined(CONFIG_I386)
32DECLARE_GLOBAL_DATA_PTR;
33#endif
wdenkfe8c2802002-11-03 00:38:21 +000034
35int do_go (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
36{
37 ulong addr, rc;
38 int rcode = 0;
39
40 if (argc < 2) {
41 printf ("Usage:\n%s\n", cmdtp->usage);
42 return 1;
43 }
44
45 addr = simple_strtoul(argv[1], NULL, 16);
46
wdenkdc7c9a12003-03-26 06:55:25 +000047 printf ("## Starting application at 0x%08lX ...\n", addr);
wdenkfe8c2802002-11-03 00:38:21 +000048
49 /*
50 * pass address parameter as argv[0] (aka command name),
51 * and all remaining args
52 */
wdenk27b207f2003-07-24 23:38:38 +000053#if defined(CONFIG_I386)
54 /*
55 * x86 does not use a dedicated register to pass the pointer
56 * to the global_data
57 */
58 argv[0] = (char *)gd;
59#endif
wdenk4a551702003-10-08 23:26:14 +000060#if !defined(CONFIG_NIOS)
wdenkfe8c2802002-11-03 00:38:21 +000061 rc = ((ulong (*)(int, char *[]))addr) (--argc, &argv[1]);
wdenk4a551702003-10-08 23:26:14 +000062#else
63 /*
64 * Nios function pointers are address >> 1
65 */
66 rc = ((ulong (*)(int, char *[]))(addr>>1)) (--argc, &argv[1]);
67#endif
wdenkfe8c2802002-11-03 00:38:21 +000068 if (rc != 0) rcode = 1;
69
wdenkdc7c9a12003-03-26 06:55:25 +000070 printf ("## Application terminated, rc = 0x%lX\n", rc);
wdenkfe8c2802002-11-03 00:38:21 +000071 return rcode;
72}
73
wdenk8bde7f72003-06-27 21:31:46 +000074/* -------------------------------------------------------------------- */
wdenkfe8c2802002-11-03 00:38:21 +000075
wdenk0d498392003-07-01 21:06:45 +000076U_BOOT_CMD(
77 go, CFG_MAXARGS, 1, do_go,
wdenk8bde7f72003-06-27 21:31:46 +000078 "go - start application at address 'addr'\n",
79 "addr [arg ...]\n - start application at address 'addr'\n"
80 " passing 'arg' as arguments\n"
81);
wdenkfe8c2802002-11-03 00:38:21 +000082
wdenk8bde7f72003-06-27 21:31:46 +000083extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
wdenkfe8c2802002-11-03 00:38:21 +000084
wdenk0d498392003-07-01 21:06:45 +000085U_BOOT_CMD(
Haiying Wang3033ebb2006-05-26 10:01:16 -050086 reset, CFG_MAXARGS, 1, do_reset,
wdenk8bde7f72003-06-27 21:31:46 +000087 "reset - Perform RESET of the CPU\n",
88 NULL
89);