1 /*
2 *
3 * BRIEF MODULE DESCRIPTION
4 * PROM library initialisation code, assuming a version of
5 * pmon is the boot code.
6 *
7 * Copyright 2001 MontaVista Software Inc.
8 * Author: MontaVista Software, Inc.
9 * ahennessy@mvista.com
10 *
11 * Based on arch/mips/au1000/common/prom.c
12 *
13 * This file was derived from Carsten Langgaard's
14 * arch/mips/mips-boards/xx files.
15 *
16 * Carsten Langgaard, carstenl@mips.com
17 * Copyright (C) 1999,2000 MIPS Technologies, Inc. All rights reserved.
18 *
19 * This program is free software; you can redistribute it and/or modify it
20 * under the terms of the GNU General Public License as published by the
21 * Free Software Foundation; either version 2 of the License, or (at your
22 * option) any later version.
23 *
24 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
25 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
26 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
27 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
28 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
29 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
30 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
31 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
32 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
33 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 *
35 * You should have received a copy of the GNU General Public License along
36 * with this program; if not, write to the Free Software Foundation, Inc.,
37 * 675 Mass Ave, Cambridge, MA 02139, USA.
38 */
39 #include <linux/kernel.h>
40 #include <linux/init.h>
41 #include <linux/string.h>
42
43 #include <asm/bootinfo.h>
44
45 /* #define DEBUG_CMDLINE */
46
47 char arcs_cmdline[CL_SIZE];
48 extern int prom_argc;
49 extern char **prom_argv, **prom_envp;
50
51 typedef struct
52 {
53 char *name;
54 /* char *val; */
55 }t_env_var;
56
57
prom_getcmdline(void)58 char * __init prom_getcmdline(void)
59 {
60 return &(arcs_cmdline[0]);
61 }
62
prom_init_cmdline(void)63 void __init prom_init_cmdline(void)
64 {
65 char *cp;
66 int actr;
67
68 actr = 1; /* Always ignore argv[0] */
69
70 cp = &(arcs_cmdline[0]);
71 while(actr < prom_argc) {
72 strcpy(cp, prom_argv[actr]);
73 cp += strlen(prom_argv[actr]);
74 *cp++ = ' ';
75 actr++;
76 }
77 if (cp != &(arcs_cmdline[0])) /* get rid of trailing space */
78 --cp;
79 *cp = '\0';
80 }
81
page_is_ram(unsigned long pagenr)82 int __init page_is_ram(unsigned long pagenr)
83 {
84 return 1;
85 }
86
prom_free_prom_memory(void)87 void prom_free_prom_memory (void)
88 {
89 }
90