NetBSD-5.0.2/sys/arch/playstation2/playstation2/cpu.c

/*	$NetBSD: cpu.c,v 1.6 2005/12/11 12:18:36 christos Exp $	*/

/*
 * Copyright (c) 2000 Soren S. Jorvang.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions, and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: cpu.c,v 1.6 2005/12/11 12:18:36 christos Exp $");

#include <sys/param.h>
#include <sys/systm.h>

#include <machine/autoconf.h>

static int cpumatch(struct device *, struct cfdata *, void *);
static void cpuattach(struct device *, struct device *, void *);

CFATTACH_DECL(cpu, sizeof (struct device),
    cpumatch, cpuattach, NULL, NULL);

extern struct cfdriver cpu_cd;
static int __attached; /* PlayStation 2 has only one CPU */

static int
cpumatch(struct device *parent, struct cfdata *cf, void *aux)
{
	struct mainbus_attach_args *ma = aux;

	/* make sure that we're looking for a CPU. */
	if (strcmp(ma->ma_name, cpu_cd.cd_name) != 0)
		return (0);

	return (!__attached);
}

static void
cpuattach(struct device *parent, struct device *dev, void *aux)
{

	printf(": ");
	__attached = 1;

	cpu_identify();
}