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_GENERIC] = "generic-loongson-machine",
27 [MACH_LOONGSON_END] = NULL,
28 };
29
get_system_type(void)30 const char *get_system_type(void)
31 {
32 return system_types[mips_machtype];
33 }
34
mach_prom_init_machtype(void)35 void __weak __init mach_prom_init_machtype(void)
36 {
37 }
38
prom_init_machtype(void)39 void __init prom_init_machtype(void)
40 {
41 char *p, str[MACHTYPE_LEN + 1];
42 int machtype = MACH_LEMOTE_FL2E;
43
44 mips_machtype = LOONGSON_MACHTYPE;
45
46 p = strstr(arcs_cmdline, "machtype=");
47 if (!p) {
48 mach_prom_init_machtype();
49 return;
50 }
51 p += strlen("machtype=");
52 strncpy(str, p, MACHTYPE_LEN);
53 str[MACHTYPE_LEN] = '\0';
54 p = strstr(str, " ");
55 if (p)
56 *p = '\0';
57
58 for (; system_types[machtype]; machtype++)
59 if (strstr(system_types[machtype], str)) {
60 mips_machtype = machtype;
61 break;
62 }
63 }
64