2 * Carsten Langgaard, carstenl@mips.com
3 * Copyright (C) 1999,2000 MIPS Technologies, Inc. All rights reserved.
5 * This program is free software; you can distribute it and/or modify it
6 * under the terms of the GNU General Public License (Version 2) as
7 * published by the Free Software Foundation.
9 * This program is distributed in the hope it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
18 * Kernel command line creation using the prom monitor (YAMON) argc/argv.
20 #include <linux/init.h>
21 #include <linux/string.h>
23 #include <asm/bootinfo.h>
26 extern int *_prom_argv;
29 * YAMON (32-bit PROM) pass arguments and environment as 32-bit pointer.
30 * This macro take care of sign extension.
32 #define prom_argv(index) ((char *)(long)_prom_argv[(index)])
34 char * __init prom_getcmdline(void)
36 return &(arcs_cmdline[0]);
40 void __init prom_init_cmdline(void)
45 actr = 1; /* Always ignore argv[0] */
47 cp = &(arcs_cmdline[0]);
48 while(actr < prom_argc) {
49 strcpy(cp, prom_argv(actr));
50 cp += strlen(prom_argv(actr));
54 if (cp != &(arcs_cmdline[0])) {
55 /* get rid of trailing space */