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