/*      $NetBSD: autoconf.c,v 1.8 2015/06/10 22:33:06 matt 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/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: autoconf.c,v 1.8 2015/06/10 22:33:06 matt Exp $");

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/buf.h>
#include <sys/conf.h>
#include <sys/device.h>
#include <sys/cpu.h>

static void     findroot(void);

void
cpu_configure(void)
{

       intr_init();

       /* Kick off autoconfiguration. */
       (void)splhigh();
       if (config_rootfound("mainbus", NULL) == NULL)
               panic("no mainbus found");

       /*
        * Hardware interrupts will be enabled in
        * sys/arch/mips/mips/mips3_clockintr.c:mips3_initclocks()
        * to avoid hardclock(9) by CPU INT5 before softclockintr is
        * initialized in initclocks().
        */
}

void
cpu_rootconf(void)
{
       findroot();

       printf("boot device: %s\n",
               booted_device ? device_xname(booted_device) : "<unknown>");

       rootconf();
}

extern char     bootstring[];
extern int      netboot;

static void
findroot(void)
{
       if (booted_device)
               return;

       if ((booted_device == NULL) && netboot == 0) {
               device_t dv;
               deviter_t di;

               for (dv = deviter_first(&di, DEVITER_F_ROOT_FIRST); dv != NULL;
                   dv = deviter_next(&di)) {
                       if (device_class(dv) == DV_DISK
                           && (device_is_a(dv, "wd")
                               || device_is_a(dv, "sd")
                               || device_is_a(dv, "ld")))
                               booted_device = dv;
               }
               deviter_release(&di);
       }

       /*
        * XXX Match up MBR boot specification with BSD disklabel for root?
        */
       booted_partition = 0;
}

void
device_register(device_t dev, void *aux)
{

       if ((booted_device == NULL) && (netboot == 1))
               if (device_class(dev) == DV_IFNET)
                       booted_device = dev;
}