1/*
2 *  arch/mips/emma2rh/common/prom.c
3 *      This file is prom file.
4 *
5 *  Copyright (C) NEC Electronics Corporation 2004-2006
6 *
7 *  This file is based on the arch/mips/ddb5xxx/common/prom.c
8 *
9 *	Copyright 2001 MontaVista Software Inc.
10 *
11 *  This program is free software; you can redistribute it and/or modify
12 *  it under the terms of the GNU General Public License as published by
13 *  the Free Software Foundation; either version 2 of the License, or
14 *  (at your option) any later version.
15 *
16 *  This program is distributed in the hope that it will be useful,
17 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
18 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19 *  GNU General Public License for more details.
20 *
21 *  You should have received a copy of the GNU General Public License
22 *  along with this program; if not, write to the Free Software
23 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
24 */
25#include <linux/init.h>
26#include <linux/mm.h>
27#include <linux/sched.h>
28#include <linux/bootmem.h>
29
30#include <asm/addrspace.h>
31#include <asm/bootinfo.h>
32#include <asm/emma2rh/emma2rh.h>
33#include <asm/debug.h>
34
35const char *get_system_type(void)
36{
37	switch (mips_machtype) {
38	case MACH_NEC_MARKEINS:
39		return "NEC EMMA2RH Mark-eins";
40	default:
41		return "Unknown NEC board";
42	}
43}
44
45/* [jsun@junsun.net] PMON passes arguments in C main() style */
46void __init prom_init(void)
47{
48	int argc = fw_arg0;
49	char **arg = (char **)fw_arg1;
50	int i;
51
52	/* if user passes kernel args, ignore the default one */
53	if (argc > 1)
54		arcs_cmdline[0] = '\0';
55
56	/* arg[0] is "g", the rest is boot parameters */
57	for (i = 1; i < argc; i++) {
58		if (strlen(arcs_cmdline) + strlen(arg[i] + 1)
59		    >= sizeof(arcs_cmdline))
60			break;
61		strcat(arcs_cmdline, arg[i]);
62		strcat(arcs_cmdline, " ");
63	}
64
65	mips_machgroup = MACH_GROUP_NEC_EMMA2RH;
66
67#if defined(CONFIG_MARKEINS)
68	mips_machtype = MACH_NEC_MARKEINS;
69	add_memory_region(0, EMMA2RH_RAM_SIZE, BOOT_MEM_RAM);
70#endif
71
72}
73
74void __init prom_free_prom_memory(void)
75{
76}
77