1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
| /*
| * This file is subject to the terms and conditions of the GNU General Public
| * License. See the file "COPYING" in the main directory of this archive
| * for more details.
| *
| * identify.c: identify machine by looking up system identifier
| *
| * Copyright (C) 1998 Thomas Bogendoerfer
| *
| * This code is based on arch/mips/sgi/kernel/system.c, which is
| *
| * Copyright (C) 1996 David S. Miller (davem@davemloft.net)
| */
| #include <linux/bug.h>
| #include <linux/init.h>
| #include <linux/kernel.h>
| #include <linux/types.h>
| #include <linux/string.h>
|
| #include <asm/sgialib.h>
| #include <asm/bootinfo.h>
|
| struct smatch {
| char *arcname;
| char *liname;
| int flags;
| };
|
| static struct smatch mach_table[] = {
| {
| .arcname = "SGI-IP22",
| .liname = "SGI Indy",
| .flags = PROM_FLAG_ARCS,
| }, {
| .arcname = "SGI-IP27",
| .liname = "SGI Origin",
| .flags = PROM_FLAG_ARCS,
| }, {
| .arcname = "SGI-IP28",
| .liname = "SGI IP28",
| .flags = PROM_FLAG_ARCS,
| }, {
| .arcname = "SGI-IP30",
| .liname = "SGI Octane",
| .flags = PROM_FLAG_ARCS,
| }, {
| .arcname = "SGI-IP32",
| .liname = "SGI O2",
| .flags = PROM_FLAG_ARCS,
| }, {
| .arcname = "Microsoft-Jazz",
| .liname = "Jazz MIPS_Magnum_4000",
| .flags = 0,
| }, {
| .arcname = "PICA-61",
| .liname = "Jazz Acer_PICA_61",
| .flags = 0,
| }, {
| .arcname = "RM200PCI",
| .liname = "SNI RM200_PCI",
| .flags = PROM_FLAG_DONT_FREE_TEMP,
| }, {
| .arcname = "RM200PCI-R5K",
| .liname = "SNI RM200_PCI-R5K",
| .flags = PROM_FLAG_DONT_FREE_TEMP,
| }
| };
|
| int prom_flags;
|
| static struct smatch * __init string_to_mach(const char *s)
| {
| int i;
|
| for (i = 0; i < ARRAY_SIZE(mach_table); i++) {
| if (!strcmp(s, mach_table[i].arcname))
| return &mach_table[i];
| }
|
| panic("Yeee, could not determine architecture type <%s>", s);
| }
|
| char *system_type;
|
| const char *get_system_type(void)
| {
| return system_type;
| }
|
| void __init prom_identify_arch(void)
| {
| pcomponent *p;
| struct smatch *mach;
| const char *iname;
|
| /*
| * The root component tells us what machine architecture we have here.
| */
| p = ArcGetChild(PROM_NULL_COMPONENT);
| if (p == NULL) {
| #ifdef CONFIG_SGI_IP27
| /* IP27 PROM misbehaves, seems to not implement ARC
| GetChild(). So we just assume it's an IP27. */
| iname = "SGI-IP27";
| #else
| iname = "Unknown";
| #endif
| } else
| iname = (char *) (long) p->iname;
|
| printk("ARCH: %s\n", iname);
| mach = string_to_mach(iname);
| system_type = mach->liname;
|
| prom_flags = mach->flags;
| }
|
|
