NetBSD/sys/arch/evbmips/malta/autoconf.c

110 lines
3.0 KiB
C

/* $NetBSD: autoconf.c,v 1.3 2002/09/27 02:24:13 thorpej Exp $ */
/*
* Copyright 2002 Wasabi Systems, Inc.
* All rights reserved.
*
* Written by Simon Burge for Wasabi Systems, Inc.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed for the NetBSD Project by
* Wasabi Systems, Inc.
* 4. The name of Wasabi Systems, Inc. may not be used to endorse
* or promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC
* 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/param.h>
#include <sys/systm.h>
#include <sys/buf.h>
#include <sys/conf.h>
#include <sys/device.h>
#include <machine/cpu.h>
struct device *booted_device;
int booted_partition;
static void findroot(void);
void
cpu_configure()
{
intr_init();
/* Kick off autoconfiguration. */
(void)splhigh();
if (config_rootfound("mainbus", "mainbus") == NULL)
panic("no mainbus found");
(void)spl0();
}
void
cpu_rootconf()
{
findroot();
printf("boot device: %s\n",
booted_device ? booted_device->dv_xname : "<unknown>");
setroot(booted_device, booted_partition);
}
extern char bootstring[];
extern int netboot;
static void
findroot(void)
{
struct device *dv;
if (booted_device)
return;
if ((booted_device == NULL) && netboot == 0)
for (dv = alldevs.tqh_first; dv != NULL;
dv = dv->dv_list.tqe_next)
if (dv->dv_class == DV_DISK &&
!strcmp(dv->dv_cfdata->cf_name, "wd"))
booted_device = dv;
/*
* XXX Match up MBR boot specification with BSD disklabel for root?
*/
booted_partition = 0;
return;
}
void
device_register(dev, aux)
struct device *dev;
void *aux;
{
if ((booted_device == NULL) && (netboot == 1))
if (dev->dv_class == DV_IFNET)
booted_device = dev;
}