sys/arch/evbppc/ev64260/autoconf.c

   1 /*      $NetBSD: autoconf.c,v 1.11 2009/03/14 14:45:59 dsl Exp $        */
   2
   3 /*-
   4  * Copyright (c) 1990 The Regents of the University of California.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to Berkeley by
   8  * William Jolitz.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  * 3. Neither the name of the University nor the names of its contributors
  19  *    may be used to endorse or promote products derived from this software
  20  *    without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  *
  34  *      @(#)autoconf.c  7.1 (Berkeley) 5/9/91
  35  */
  36
  37 /*
  38  * Setup the system to run on the current machine.
  39  *
  40  * Configure() is called at boot time and initializes the vba
  41  * device tables and the memory controller monitoring.  Available
  42  * devices are determined (from possibilities mentioned in ioconf.c),
  43  * and the drivers are initialized.
  44  */
  45
  46 #include <sys/cdefs.h>
  47 __KERNEL_RCSID(0, "$NetBSD: autoconf.c,v 1.11 2009/03/14 14:45:59 dsl Exp $");
  48
  49 #include <sys/param.h>
  50 #include <sys/systm.h>
  51 #include <sys/buf.h>
  52 #include <sys/disklabel.h>
  53 #include <sys/conf.h>
  54 #include <sys/reboot.h>
  55 #include <sys/device.h>
  56
  57 void findroot(void);
  58
  59 /*
  60  * Determine i/o configuration for a machine.
  61  */
  62 void
  63 cpu_configure(void)
  64 {
  65         extern void init_interrupt(void);
  66
  67         extintr_disable();
  68
  69         init_interrupt();
  70
  71         if (config_rootfound("mainbus", NULL) == NULL)
  72                 panic("configure: mainbus not configured");
  73
  74         printf("biomask %x.%x.%x.%x netmask %x.%x.%x.%x ttymask %x.%x.%x.%x\n",
  75             imask[IPL_BIO].bits[0], imask[IPL_BIO].bits[1],
  76             imask[IPL_BIO].bits[2], imask[IPL_BIO].bits[3],
  77             imask[IPL_NET].bits[0], imask[IPL_NET].bits[1],
  78             imask[IPL_NET].bits[2], imask[IPL_NET].bits[3],
  79             imask[IPL_TTY].bits[0], imask[IPL_TTY].bits[1],
  80             imask[IPL_TTY].bits[2], imask[IPL_TTY].bits[3]);
  81
  82         curcpu()->ci_cpl = IPL_NONE;
  83         extintr_enable();
  84
  85         spl0();
  86 }
  87
  88 void
  89 cpu_rootconf(void)
  90 {
  91         findroot();
  92
  93         printf("boot device: %s\n",
  94             booted_device ? booted_device->dv_xname : "<unknown>");
  95
  96         setroot(booted_device, booted_partition);
  97 }
  98
  99 dev_t   bootdev = 0;
 100
 101 /*
 102  * Attempt to find the device from which we were booted.
 103  * If we can do so, and not instructed not to do so,
 104  * change rootdev to correspond to the load device.
 105  */
 106 void
 107 findroot(void)
 108 {
 109         device_t dv;
 110         const char *name;
 111
 112 #if 0
 113         printf("howto %x bootdev %x ", boothowto, bootdev);
 114 #endif
 115
 116         if ((bootdev & B_MAGICMASK) != (u_long)B_DEVMAGIC)
 117                 return;
 118
 119
 120         name = devsw_blk2name(B_TYPE(bootdev));
 121         if (name == NULL)
 122                 return;
 123
 124         if ((dv = device_find_by_driver_unit(name, B_UNIT(bootdev))) != NULL) {
 125                 booted_device = dv;
 126                 booted_partition = B_PARTITION(bootdev);
 127         }
 128 }
 129
 130 void
 131 device_register(struct device *dev, void *aux)
 132 {
 133 }