1 /*
2 * Copyright (C) 2009 Lemote Inc.
3 * Author: Wu Zhangjin, wuzhangjin@gmail.com
4 *
5 * Copyright (c) 2009 Zhang Le <r0bertz@gentoo.org>
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the
9 * Free Software Foundation; either version 2 of the License, or (at your
10 * option) any later version.
11 */
12 #include <linux/errno.h>
13 #include <asm/bootinfo.h>
14
15 #include <loongson.h>
16 #include <machine.h>
17
18 /* please ensure the length of the machtype string is less than 50 */
19 #define MACHTYPE_LEN 50
20
21 static const char *system_types[] = {
22 [MACH_LOONGSON_UNKNOWN] "unknown loongson machine",
23 [MACH_LEMOTE_FL2E] "lemote-fuloong-2e-box",
24 [MACH_LEMOTE_FL2F] "lemote-fuloong-2f-box",
25 [MACH_LEMOTE_ML2F7] "lemote-mengloong-2f-7inches",
26 [MACH_LEMOTE_YL2F89] "lemote-yeeloong-2f-8.9inches",
27 [MACH_DEXXON_GDIUM2F10] "dexxon-gdium-2f",
28 [MACH_LEMOTE_NAS] "lemote-nas-2f",
29 [MACH_LEMOTE_LL2F] "lemote-lynloong-2f",
30 [MACH_LOONGSON_END] NULL,
31 };
32
get_system_type(void)33 const char *get_system_type(void)
34 {
35 return system_types[mips_machtype];
36 }
37
mach_prom_init_machtype(void)38 void __weak __init mach_prom_init_machtype(void)
39 {
40 }
41
prom_init_machtype(void)42 void __init prom_init_machtype(void)
43 {
44 char *p, str[MACHTYPE_LEN + 1];
45 int machtype = MACH_LEMOTE_FL2E;
46
47 mips_machtype = LOONGSON_MACHTYPE;
48
49 p = strstr(arcs_cmdline, "machtype=");
50 if (!p) {
51 mach_prom_init_machtype();
52 return;
53 }
54 p += strlen("machtype=");
55 strncpy(str, p, MACHTYPE_LEN);
56 str[MACHTYPE_LEN] = '\0';
57 p = strstr(str, " ");
58 if (p)
59 *p = '\0';
60
61 for (; system_types[machtype]; machtype++)
62 if (strstr(system_types[machtype], str)) {
63 mips_machtype = machtype;
64 break;
65 }
66 }
67