1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright (C) 2009 Lemote Inc.
4 * Author: Wu Zhangjin, wuzhangjin@gmail.com
5 *
6 * Copyright (c) 2009 Zhang Le <r0bertz@gentoo.org>
7 */
8 #include <linux/errno.h>
9 #include <asm/bootinfo.h>
10
11 #include <loongson.h>
12 #include <machine.h>
13
14 /* please ensure the length of the machtype string is less than 50 */
15 #define MACHTYPE_LEN 50
16
17 static const char *system_types[] = {
18 [MACH_LOONGSON_UNKNOWN] = "unknown loongson machine",
19 [MACH_LEMOTE_FL2E] = "lemote-fuloong-2e-box",
20 [MACH_LEMOTE_FL2F] = "lemote-fuloong-2f-box",
21 [MACH_LEMOTE_ML2F7] = "lemote-mengloong-2f-7inches",
22 [MACH_LEMOTE_YL2F89] = "lemote-yeeloong-2f-8.9inches",
23 [MACH_DEXXON_GDIUM2F10] = "dexxon-gdium-2f",
24 [MACH_LEMOTE_NAS] = "lemote-nas-2f",
25 [MACH_LEMOTE_LL2F] = "lemote-lynloong-2f",
26 [MACH_LOONGSON_END] = NULL,
27 };
28
get_system_type(void)29 const char *get_system_type(void)
30 {
31 return system_types[mips_machtype];
32 }
33
mach_prom_init_machtype(void)34 void __weak __init mach_prom_init_machtype(void)
35 {
36 }
37
prom_init_machtype(void)38 void __init prom_init_machtype(void)
39 {
40 char *p, str[MACHTYPE_LEN + 1];
41 int machtype = MACH_LEMOTE_FL2E;
42
43 mips_machtype = LOONGSON_MACHTYPE;
44
45 p = strstr(arcs_cmdline, "machtype=");
46 if (!p) {
47 mach_prom_init_machtype();
48 return;
49 }
50 p += strlen("machtype=");
51 strncpy(str, p, MACHTYPE_LEN);
52 str[MACHTYPE_LEN] = '\0';
53 p = strstr(str, " ");
54 if (p)
55 *p = '\0';
56
57 for (; system_types[machtype]; machtype++)
58 if (strstr(system_types[machtype], str)) {
59 mips_machtype = machtype;
60 break;
61 }
62 }
63