Annotation of sys/arch/mvmeppc/pci/pcib.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: pcib.c,v 1.2 2002/03/14 01:26:41 millert Exp $ */
2: /* $NetBSD: pcib.c,v 1.6 1997/06/06 23:29:16 thorpej Exp $ */
3:
4: /*-
5: * Copyright (c) 1996 The NetBSD Foundation, Inc.
6: * All rights reserved.
7: *
8: * This code is derived from software contributed to The NetBSD Foundation
9: * by Jason R. Thorpe.
10: *
11: * Redistribution and use in source and binary forms, with or without
12: * modification, are permitted provided that the following conditions
13: * are met:
14: * 1. Redistributions of source code must retain the above copyright
15: * notice, this list of conditions and the following disclaimer.
16: * 2. Redistributions in binary form must reproduce the above copyright
17: * notice, this list of conditions and the following disclaimer in the
18: * documentation and/or other materials provided with the distribution.
19: * 3. All advertising materials mentioning features or use of this software
20: * must display the following acknowledgement:
21: * This product includes software developed by the NetBSD
22: * Foundation, Inc. and its contributors.
23: * 4. Neither the name of The NetBSD Foundation nor the names of its
24: * contributors may be used to endorse or promote products derived
25: * from this software without specific prior written permission.
26: *
27: * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
28: * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
29: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
30: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
31: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37: * POSSIBILITY OF SUCH DAMAGE.
38: */
39:
40: #include <sys/types.h>
41: #include <sys/param.h>
42: #include <sys/systm.h>
43: #include <sys/device.h>
44:
45: #include <machine/bus.h>
46: #include <dev/isa/isavar.h>
47:
48: #include <dev/pci/pcivar.h>
49: #include <dev/pci/pcireg.h>
50:
51: #include <dev/pci/pcidevs.h>
52: #include <mvmeppc/dev/ravenreg.h>
53:
54: #include "isa.h"
55:
56: int pcibmatch(struct device *, void *, void *);
57: void pcibattach(struct device *, struct device *, void *);
58: void pcib_callback(struct device *);
59: int pcib_print(void *, const char *);
60:
61: struct ppc_bus_space ppc_isa_io, ppc_isa_mem;
62:
63: struct cfattach pcib_ca = {
64: sizeof(struct device), pcibmatch, pcibattach
65: };
66:
67: struct cfdriver pcib_cd = {
68: NULL, "pcib", DV_DULL
69: };
70:
71: int
72: pcibmatch(parent, match, aux)
73: struct device *parent;
74: void *match, *aux;
75: {
76: struct pci_attach_args *pa = aux;
77:
78: if (PCI_CLASS(pa->pa_class) == PCI_CLASS_BRIDGE &&
79: PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_BRIDGE_ISA)
80: return (1);
81:
82: switch (PCI_VENDOR(pa->pa_id)) {
83: case PCI_VENDOR_SYMPHONY:
84: switch (PCI_PRODUCT(pa->pa_id)) {
85: case PCI_PRODUCT_SYMPHONY_82C565:
86: return (1);
87: }
88: }
89:
90: return (0);
91: }
92:
93: void
94: pcibattach(parent, self, aux)
95: struct device *parent, *self;
96: void *aux;
97: {
98:
99: ppc_isa_io = prep_isa_io_space_tag;
100: ppc_isa_mem = prep_isa_mem_space_tag;
101:
102: /*
103: * Cannot attach isa bus now; must postpone for various reasons
104: */
105:
106: printf("\n");
107:
108: config_defer(self, pcib_callback);
109: }
110:
111: void
112: pcib_callback(self)
113: struct device *self;
114: {
115: struct isabus_attach_args iba;
116:
117: #if NPCIBIOS > 0
118: pci_intr_post_fixup();
119: #endif
120:
121: /*
122: * Attach the ISA bus behind this bridge.
123: */
124: memset(&iba, 0, sizeof(iba));
125: iba.iba_busname = "isa";
126: iba.iba_iot = &ppc_isa_io;
127: iba.iba_memt = &ppc_isa_mem;
128: #if NISADMA > 0
129: iba.iba_dmat = &isa_bus_dma_tag;
130: #endif
131: config_found(self, &iba, pcib_print);
132: }
133:
134: int
135: pcib_print(aux, pnp)
136: void *aux;
137: const char *pnp;
138: {
139: /* Only ISAs can attach to pcib's; easy. */
140: if (pnp)
141: printf("isa at %s", pnp);
142: return (UNCONF);
143: }
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