/* * identify.c: machine identification code. * * Copyright (C) 1998 Harald Koerfgen and Paul M. Antoine * * $Id: identify.c,v 1.2 1999/10/09 00:00:58 ralf Exp $ */#include <linux/init.h>#include <linux/kernel.h>#include <linux/string.h>#include <asm/bootinfo.h>#include "dectypes.h"#include "prom.h"extern char *(*prom_getenv)(char *);extern int (*prom_printf)(char *, ...);extern int (*rex_getsysid)(void);extern unsigned long mips_machgroup;extern unsigned long mips_machtype;void __init prom_identify_arch (unsigned int magic){	unsigned char dec_cpunum, dec_firmrev, dec_etc;	int dec_systype;	unsigned long dec_sysid;	if (magic != REX_PROM_MAGIC) {		dec_sysid = simple_strtoul(prom_getenv("systype"), (char **)0, 0);	} else {		dec_sysid = rex_getsysid();		if (dec_sysid == 0) {			prom_printf("Zero sysid returned from PROMs! Assuming PMAX-like machine.\n");			dec_sysid = 1;		}	}	dec_cpunum = (dec_sysid & 0xff000000) >> 24;	dec_systype = (dec_sysid & 0xff0000) >> 16;	dec_firmrev = (dec_sysid & 0xff00) >> 8;	dec_etc = dec_sysid & 0xff;	/* We're obviously one of the DEC machines */	mips_machgroup = MACH_GROUP_DEC;	/*	 * FIXME: This may not be an exhaustive list of DECStations/Servers!	 * Put all model-specific initialisation calls here.	 */	prom_printf("This DECstation is a ");	switch (dec_systype) {	case DS2100_3100:		prom_printf("DS2100/3100\n");		mips_machtype = MACH_DS23100;		break;	case DS5100:		/* DS5100 MIPSMATE */		prom_printf("DS5100\n");		mips_machtype = MACH_DS5100;		break;	case DS5000_200:	/* DS5000 3max */		prom_printf("DS5000/200\n");		mips_machtype = MACH_DS5000_200;		break;	case DS5000_1XX:	/* DS5000/100 3min */		prom_printf("DS5000/1xx\n");		mips_machtype = MACH_DS5000_1XX;		break;	case DS5000_2X0:	/* DS5000/240 3max+ */		prom_printf("DS5000/2x0\n");		mips_machtype = MACH_DS5000_2X0;		break;	case DS5000_XX:	/* Personal DS5000/2x */		prom_printf("Personal DS5000/xx\n");		mips_machtype = MACH_DS5000_XX;		break;	case DS5800:		/* DS5800 Isis */		prom_printf("DS5800\n");		mips_machtype = MACH_DS5800;		break;	case DS5400:		/* DS5400 MIPSfair */		prom_printf("DS5400\n");		mips_machtype = MACH_DS5400;		break;	case DS5500:		/* DS5500 MIPSfair-2 */		prom_printf("DS5500\n");		mips_machtype = MACH_DS5500;		break;	default:		prom_printf("unknown, id is %x", dec_systype);		mips_machtype = MACH_DSUNKNOWN;		break;	}}