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-rw-r--r--arch/mips/emma2rh/common/prom.c77
1 files changed, 77 insertions, 0 deletions
diff --git a/arch/mips/emma2rh/common/prom.c b/arch/mips/emma2rh/common/prom.c
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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/config.h>
26#include <linux/init.h>
27#include <linux/mm.h>
28#include <linux/sched.h>
29#include <linux/bootmem.h>
30
31#include <asm/addrspace.h>
32#include <asm/bootinfo.h>
33#include <asm/emma2rh/emma2rh.h>
34#include <asm/debug.h>
35
36const char *get_system_type(void)
37{
38 switch (mips_machtype) {
39 case MACH_NEC_MARKEINS:
40 return "NEC EMMA2RH Mark-eins";
41 default:
42 return "Unknown NEC board";
43 }
44}
45
46/* [jsun@junsun.net] PMON passes arguments in C main() style */
47void __init prom_init(void)
48{
49 int argc = fw_arg0;
50 char **arg = (char **)fw_arg1;
51 int i;
52
53 /* if user passes kernel args, ignore the default one */
54 if (argc > 1)
55 arcs_cmdline[0] = '\0';
56
57 /* arg[0] is "g", the rest is boot parameters */
58 for (i = 1; i < argc; i++) {
59 if (strlen(arcs_cmdline) + strlen(arg[i] + 1)
60 >= sizeof(arcs_cmdline))
61 break;
62 strcat(arcs_cmdline, arg[i]);
63 strcat(arcs_cmdline, " ");
64 }
65
66 mips_machgroup = MACH_GROUP_NEC_EMMA2RH;
67
68#if defined(CONFIG_MARKEINS)
69 mips_machtype = MACH_NEC_MARKEINS;
70 add_memory_region(0, EMMA2RH_RAM_SIZE, BOOT_MEM_RAM);
71#endif
72
73}
74
75void __init prom_free_prom_memory(void)
76{
77}