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/*
* (C) Copyright 2005-2008
* Matthias Fuchs, esd GmbH Germany, matthias.fuchs@esd-electronics.com
*
* 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
*/
#include <common.h>
#include <command.h>
#if !defined(CONFIG_440)
#include <asm/4xx_pci.h>
#endif
#if defined(CONFIG_CMD_BSP)
extern int do_source (cmd_tbl_t *, int, int, char *[]);
#define ADDRMASK 0xfffff000
/*
* Command loadpci: wait for signal from host and boot image.
*/
int do_loadpci(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
u32 *ptr = 0;
int count = 0;
int count2 = 0;
char addr[16];
char str[] = "\\|/-";
char *local_args[2];
u32 la, ptm1la;
#if defined(CONFIG_440)
ptm1la = in32r(PCIL0_PTM1LA);
#else
ptm1la = in32r(PTM1LA);
#endif
while(1) {
/*
* Mark sync address
*/
ptr = (u32 *)ptm1la;
memset(ptr, 0, 0x20);
*ptr = 0xffffffff;
puts("\nWaiting for action from pci host -");
/*
* Wait for host to write the start address
*/
while (*ptr == 0xffffffff) {
count++;
if (!(count % 100)) {
count2++;
putc(0x08); /* backspace */
putc(str[count2 % 4]);
}
/* Abort if ctrl-c was pressed */
if (ctrlc()) {
puts("\nAbort\n");
return 0;
}
udelay(1000);
}
printf("\nGot bootcode %08x: ", *ptr);
la = ptm1la + (*ptr & ADDRMASK);
sprintf(addr, "%08x", la);
switch (*ptr & ~ADDRMASK) {
case 0:
/*
* Boot image via bootm
*/
printf("booting image at addr 0x%s ...\n", addr);
setenv("loadaddr", addr);
do_bootm(cmdtp, 0, 0, NULL);
break;
case 1:
/*
* Boot image via "source" command
*/
printf("executing script at addr 0x%s ...\n", addr);
local_args[0] = addr;
local_args[1] = NULL;
do_source(cmdtp, 0, 1, local_args);
break;
case 2:
/*
* Call run_cmd
*/
printf("running command at addr 0x%s ...\n", addr);
run_command((char *)la, 0);
break;
default:
printf("unhandled boot method\n");
break;
}
}
}
U_BOOT_CMD(
loadpci, 1, 1, do_loadpci,
"Wait for pci bootcmd and boot it",
""
);
#endif
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