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