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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 | /* * 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 (dm@engr.sgi.com) */ #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; } |