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
21static 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_GENERIC]	= "generic-loongson-machine",
31	[MACH_LOONGSON_END]	= NULL,
32};
33
34const char *get_system_type(void)
35{
36	return system_types[mips_machtype];
37}
38
39void __weak __init mach_prom_init_machtype(void)
40{
41}
42
43void __init prom_init_machtype(void)
44{
45	char *p, str[MACHTYPE_LEN + 1];
46	int machtype = MACH_LEMOTE_FL2E;
47
48	mips_machtype = LOONGSON_MACHTYPE;
49
50	p = strstr(arcs_cmdline, "machtype=");
51	if (!p) {
52		mach_prom_init_machtype();
53		return;
54	}
55	p += strlen("machtype=");
56	strncpy(str, p, MACHTYPE_LEN);
57	str[MACHTYPE_LEN] = '\0';
58	p = strstr(str, " ");
59	if (p)
60		*p = '\0';
61
62	for (; system_types[machtype]; machtype++)
63		if (strstr(system_types[machtype], str)) {
64			mips_machtype = machtype;
65			break;
66		}
67}
68