projects / mirror_ubuntu-artful-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* |
| 2 | * This file is subject to the terms and conditions of the GNU General Public | |
| 3 | * License. See the file "COPYING" in the main directory of this archive | |
| 4 | * for more details. | |
| 5 | * | |
| 6 | * identify.c: identify machine by looking up system identifier | |
| 7 | * | |
| 8 | * Copyright (C) 1998 Thomas Bogendoerfer | |
| 9 | * | |
| 10 | * This code is based on arch/mips/sgi/kernel/system.c, which is | |
| 11 | * | |
| 79add627 | 12 | * Copyright (C) 1996 David S. Miller (davem@davemloft.net) |
| 1da177e4 | 13 | */ |
| 50af5ead | 14 | #include <linux/bug.h> |
| 1da177e4 LT |
15 | #include <linux/init.h> |
| 16 | #include <linux/kernel.h> | |
| 17 | #include <linux/types.h> | |
| 18 | #include <linux/string.h> | |
| 19 | ||
| 20 | #include <asm/sgialib.h> | |
| 21 | #include <asm/bootinfo.h> | |
| 22 | ||
| 23 | struct smatch { | |
| 24 | char *arcname; | |
| 25 | char *liname; | |
| 1da177e4 LT |
26 | int flags; |
| 27 | }; | |
| 28 | ||
| 29 | static struct smatch mach_table[] = { | |
| 112b20a1 RB |
30 | { |
| 31 | .arcname = "SGI-IP22", | |
| 32 | .liname = "SGI Indy", | |
| 112b20a1 RB |
33 | .flags = PROM_FLAG_ARCS, |
| 34 | }, { | |
| 35 | .arcname = "SGI-IP27", | |
| 36 | .liname = "SGI Origin", | |
| 112b20a1 RB |
37 | .flags = PROM_FLAG_ARCS, |
| 38 | }, { | |
| 39 | .arcname = "SGI-IP28", | |
| 40 | .liname = "SGI IP28", | |
| 112b20a1 RB |
41 | .flags = PROM_FLAG_ARCS, |
| 42 | }, { | |
| 43 | .arcname = "SGI-IP30", | |
| 44 | .liname = "SGI Octane", | |
| 112b20a1 RB |
45 | .flags = PROM_FLAG_ARCS, |
| 46 | }, { | |
| 47 | .arcname = "SGI-IP32", | |
| 48 | .liname = "SGI O2", | |
| 112b20a1 RB |
49 | .flags = PROM_FLAG_ARCS, |
| 50 | }, { | |
| 51 | .arcname = "Microsoft-Jazz", | |
| 52 | .liname = "Jazz MIPS_Magnum_4000", | |
| 112b20a1 RB |
53 | .flags = 0, |
| 54 | }, { | |
| 55 | .arcname = "PICA-61", | |
| 56 | .liname = "Jazz Acer_PICA_61", | |
| 112b20a1 RB |
57 | .flags = 0, |
| 58 | }, { | |
| 59 | .arcname = "RM200PCI", | |
| 60 | .liname = "SNI RM200_PCI", | |
| 330117ff TB |
61 | .flags = PROM_FLAG_DONT_FREE_TEMP, |
| 62 | }, { | |
| 63 | .arcname = "RM200PCI-R5K", | |
| 64 | .liname = "SNI RM200_PCI-R5K", | |
| 112b20a1 | 65 | .flags = PROM_FLAG_DONT_FREE_TEMP, |
| 1da177e4 LT |
66 | } |
| 67 | }; | |
| 68 | ||
| 69 | int prom_flags; | |
| 70 | ||
| 71 | static struct smatch * __init string_to_mach(const char *s) | |
| 72 | { | |
| 73 | int i; | |
| 74 | ||
| 25b8ac3b | 75 | for (i = 0; i < ARRAY_SIZE(mach_table); i++) { |
| 1da177e4 LT |
76 | if (!strcmp(s, mach_table[i].arcname)) |
| 77 | return &mach_table[i]; | |
| 78 | } | |
| 79 | ||
| 80 | panic("Yeee, could not determine architecture type <%s>", s); | |
| 81 | } | |
| 82 | ||
| 83 | char *system_type; | |
| 84 | ||
| 85 | const char *get_system_type(void) | |
| 86 | { | |
| 87 | return system_type; | |
| 88 | } | |
| 89 | ||
| 90 | void __init prom_identify_arch(void) | |
| 91 | { | |
| 92 | pcomponent *p; | |
| 93 | struct smatch *mach; | |
| 94 | const char *iname; | |
| 95 | ||
| 96 | /* | |
| 97 | * The root component tells us what machine architecture we have here. | |
| 98 | */ | |
| 99 | p = ArcGetChild(PROM_NULL_COMPONENT); | |
| 100 | if (p == NULL) { | |
| 101 | #ifdef CONFIG_SGI_IP27 | |
| 102 | /* IP27 PROM misbehaves, seems to not implement ARC | |
| 103 | GetChild(). So we just assume it's an IP27. */ | |
| 104 | iname = "SGI-IP27"; | |
| 105 | #else | |
| 106 | iname = "Unknown"; | |
| 107 | #endif | |
| 108 | } else | |
| 109 | iname = (char *) (long) p->iname; | |
| 110 | ||
| 111 | printk("ARCH: %s\n", iname); | |
| 112 | mach = string_to_mach(iname); | |
| 113 | system_type = mach->liname; | |
| 114 | ||
| 1da177e4 LT |
115 | prom_flags = mach->flags; |
| 116 | } |