identify.c
上传用户:lgb322
上传日期:2013-02-24
资源大小:30529k
文件大小:1k
- /*
- * 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/sgi/sgi.h>
- #include <asm/sgialib.h>
- #include <asm/bootinfo.h>
- struct smatch {
- char *name;
- int group;
- int type;
- int flags;
- };
- static struct smatch mach_table[] = {
- {"SGI-IP22", MACH_GROUP_SGI, MACH_SGI_INDY, PROM_FLAG_ARCS},
- {"Microsoft-Jazz", MACH_GROUP_JAZZ, MACH_MIPS_MAGNUM_4000, 0},
- {"PICA-61", MACH_GROUP_JAZZ, MACH_ACER_PICA_61, 0},
- {"RM200PCI", MACH_GROUP_SNI_RM, MACH_SNI_RM200_PCI, 0}
- };
- int prom_flags;
- static struct smatch *__init string_to_mach(char *s)
- {
- int i;
- for (i = 0; i < (sizeof(mach_table) / sizeof (mach_table[0])); i++) {
- if (!strcmp(s, mach_table[i].name))
- return &mach_table[i];
- }
- prom_printf("nYeee, could not determine architecture type <%s>n",
- s);
- prom_printf("press a key to rebootn");
- prom_getchar();
- romvec->imode();
- return NULL;
- }
- void __init prom_identify_arch(void)
- {
- pcomponent *p;
- struct smatch *mach;
- /*
- * The root component tells us what machine architecture we
- * have here.
- */
- p = prom_getchild(PROM_NULL_COMPONENT);
- printk("ARCH: %sn", p->iname);
- mach = string_to_mach(p->iname);
- mips_machgroup = mach->group;
- mips_machtype = mach->type;
- prom_flags = mach->flags;
- }