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/*
* (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
static inline void go_setup(int argc, char *argv[])
{
#if defined(CONFIG_I386)
/*
* x86 does not use a dedicated register to pass the pointer
* to the global_data
*/
argv[0] = (char *)gd;
#elif defined(CONFIG_BLACKFIN)
if (dcache_status ())
dcache_disable ();
if (icache_status ())
icache_disable ();
#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);
go_setup(argc, argv);
#if defined(CONFIG_NIOS)
/*
* Nios function pointers are address >> 1
*/
addr >>= 1;
#endif
/*
* pass address parameter as argv[0] (aka command name),
* and all remaining args
*/
rc = ((ulong (*)(int, char *[]))addr) (--argc, &argv[1]);
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
);
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