sys/arch/netwinder/pci/pcib.c

   1 /*      $NetBSD: pcib.c,v 1.12 2009/03/14 15:36:11 dsl Exp $    */
   2
   3 /*-
   4  * Copyright (c) 1996, 1998 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Jason R. Thorpe.
   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  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  *
  31  *      from:  i386/pci/pcib.c,v 1.12
  32  */
  33
  34 #include <sys/cdefs.h>
  35 __KERNEL_RCSID(0, "$NetBSD: pcib.c,v 1.12 2009/03/14 15:36:11 dsl Exp $");
  36
  37 #include <sys/param.h>
  38 #include <sys/systm.h>
  39 #include <sys/device.h>
  40
  41 #include <machine/bus.h>
  42
  43 #include <dev/isa/isavar.h>
  44
  45 #include <dev/pci/pcivar.h>
  46 #include <dev/pci/pcireg.h>
  47
  48 #include <dev/pci/pcidevs.h>
  49
  50 #include "isadma.h"
  51
  52 int     pcibmatch(struct device *, struct cfdata *, void *);
  53 void    pcibattach(struct device *, struct device *, void *);
  54
  55 CFATTACH_DECL(pcib, sizeof(struct device),
  56     pcibmatch, pcibattach, NULL, NULL);
  57
  58 void    pcib_callback(struct device *);
  59
  60 int
  61 pcibmatch(struct device *parent, struct cfdata *match, void *aux)
  62 {
  63         struct pci_attach_args *pa = aux;
  64
  65         /*
  66          * Match tested PCI-ISA bridges.
  67          */
  68         switch (PCI_VENDOR(pa->pa_id)) {
  69         case PCI_VENDOR_WINBOND:
  70                 switch (PCI_PRODUCT(pa->pa_id)) {
  71                 case PCI_PRODUCT_WINBOND_W83C553F_0:
  72                         return (1);
  73                 }
  74                 break;
  75
  76         case PCI_VENDOR_SYMPHONY:
  77                 switch (PCI_PRODUCT(pa->pa_id)) {
  78                 case PCI_PRODUCT_SYMPHONY_83C553:
  79                         return (1);
  80                 }
  81                 break;
  82         }
  83
  84         return (0);
  85 }
  86
  87 void
  88 pcibattach(struct device *parent, struct device *self, void *aux)
  89 {
  90         struct pci_attach_args *pa = aux;
  91         char devinfo[256];
  92
  93         printf("\n");
  94
  95         /*
  96          * Just print out a description and set the ISA bus
  97          * callback.
  98          */
  99         pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo));
 100         printf("%s: %s (rev. 0x%02x)\n", self->dv_xname, devinfo,
 101             PCI_REVISION(pa->pa_class));
 102
 103         /* Set the ISA bus callback */
 104         config_defer(self, pcib_callback);
 105 }
 106
 107 void
 108 pcib_callback(struct device *self)
 109 {
 110         struct isabus_attach_args iba;
 111
 112         /*
 113          * Attach the ISA bus behind this bridge.
 114          */
 115         memset(&iba, 0, sizeof(iba));
 116         iba.iba_iot = &isa_io_bs_tag;
 117         iba.iba_memt = &isa_mem_bs_tag;
 118 #if NISADMA > 0
 119         iba.iba_dmat = &isa_bus_dma_tag;
 120 #endif
 121         config_found_ia(self, "isabus", &iba, isabusprint);
 122 }