sys/arch/evbppc/obs405/obs200_autoconf.c

   1 /*      $NetBSD: obs200_autoconf.c,v 1.3 2006/05/15 15:56:54 shige Exp $        */
   2
   3 /*
   4  * Copyright 2004 Shigeyuki Fukushima.
   5  * All rights reserved.
   6  *
   7  * Written by Shigeyuki Fukushima for The NetBSD Project.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above
  15  *    copyright notice, this list of conditions and the following
  16  *    disclaimer in the documentation and/or other materials provided
  17  *    with the distribution.
  18  * 3. The name of the author may not be used to endorse or promote
  19  *    products derived from this software without specific prior
  20  *    written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  24  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  25  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE
  26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  27  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
  28  * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
  29  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  30  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  31  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
  32  * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
  33  * DAMAGE.
  34  */
  35 #include <sys/cdefs.h>
  36 __KERNEL_RCSID(0, "$NetBSD: obs200_autoconf.c,v 1.3 2006/05/15 15:56:54 shige Exp $");
  37
  38 #include <sys/systm.h>
  39 #include <sys/device.h>
  40
  41 #include <machine/obs200.h>
  42
  43 #include <powerpc/ibm4xx/dcr405gp.h>
  44
  45
  46 /*
  47  * Determine device configuration for a machine.
  48  */
  49 void
  50 cpu_configure(void)
  51 {
  52
  53         intr_init();
  54         calc_delayconst();
  55
  56         /* Make sure that timers run at CPU frequency */
  57         mtdcr(DCR_CPC0_CR1, mfdcr(DCR_CPC0_CR1) & ~CPC0_CR1_CETE);
  58
  59         if (config_rootfound("plb", NULL) == NULL)
  60                 panic("configure: mainbus not configured");
  61
  62         printf("biomask %x netmask %x ttymask %x\n",
  63             imask[IPL_BIO], imask[IPL_NET], imask[IPL_TTY]);
  64
  65         (void)spl0();
  66
  67         /*
  68          * Now allow hardware interrupts.
  69          */
  70         __asm volatile ("wrteei 1");
  71 }
  72
  73 void device_register(struct device *dev, void *aux)
  74 {
  75
  76         obs405_device_register(dev, aux, OBS200_COM_FREQ);
  77 }