identify.c
上传用户:jlfgdled
上传日期:2013-04-10
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文件大小:2k
- /*
- * 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/config.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 group;
- int type;
- int flags;
- };
- static struct smatch mach_table[] = {
- { "SGI-IP22",
- "SGI Indy",
- MACH_GROUP_SGI,
- MACH_SGI_INDY,
- PROM_FLAG_ARCS
- }, { "SGI-IP27",
- "SGI Origin",
- MACH_GROUP_SGI,
- MACH_SGI_IP27,
- PROM_FLAG_ARCS
- }, { "SGI-IP28",
- "SGI IP28",
- MACH_GROUP_SGI,
- MACH_SGI_IP28,
- PROM_FLAG_ARCS
- }, { "SGI-IP32",
- "SGI IP32",
- MACH_GROUP_SGI,
- MACH_SGI_IP32,
- PROM_FLAG_ARCS
- }, { "Microsoft-Jazz",
- "Jazz MIPS_Magnum_4000",
- MACH_GROUP_JAZZ,
- MACH_MIPS_MAGNUM_4000,
- 0
- }, { "PICA-61",
- "Jazz Acer_PICA_61",
- MACH_GROUP_JAZZ,
- MACH_ACER_PICA_61,
- 0
- }, { "RM200PCI",
- "SNI RM200_PCI",
- MACH_GROUP_SNI_RM,
- MACH_SNI_RM200_PCI,
- 0
- }
- };
- int prom_flags;
- static struct smatch * __init string_to_mach(const char *s)
- {
- int i;
- for (i = 0; i < (sizeof(mach_table) / sizeof (mach_table[0])); 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(KERN_INFO "ARCH: %sn", iname);
- mach = string_to_mach(iname);
- system_type = mach->liname;
- mips_machgroup = mach->group;
- mips_machtype = mach->type;
- prom_flags = mach->flags;
- }