1/*-
2 * Copyright (c) 1994,1995 Stefan Esser, Wolfgang StanglMeier
3 * Copyright (c) 2000 Michael Smith <msmith@freebsd.org>
4 * Copyright (c) 2000 BSDi
5 * Copyright (c) 2001 - 2003 Thomas Moestl <tmm@FreeBSD.org>
6 * Copyright (c) 2009 by Marius Strobl <marius@FreeBSD.org>
7 * All rights reserved.
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 copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. The name of the author may not be used to endorse or promote products
18 * derived from this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 * from: FreeBSD: src/sys/dev/pci/pci_pci.c,v 1.3 2000/12/13
33 */
34
35#include <sys/cdefs.h>
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36__FBSDID("$FreeBSD: head/sys/sparc64/pci/ofw_pcib.c 221393 2011-05-03 17:37:24Z jhb $");
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| 36__FBSDID("$FreeBSD: head/sys/sparc64/pci/ofw_pcib.c 227848 2011-11-22 21:55:40Z marius $"); |
37
38#include "opt_ofw_pci.h"
39
40#include <sys/param.h>
41#include <sys/bus.h>
42#include <sys/kernel.h>
43#include <sys/libkern.h>
44#include <sys/module.h>
45#include <sys/rman.h>
46
47#include <dev/ofw/ofw_bus.h>
48#include <dev/ofw/openfirm.h>
49
50#include <machine/bus.h>
51
52#include <dev/pci/pcireg.h>
53#include <dev/pci/pcivar.h>
54#include <dev/pci/pcib_private.h>
55
56#include "pcib_if.h"
57
58#include <sparc64/pci/ofw_pci.h>
59#include <sparc64/pci/ofw_pcib_subr.h>
60
61static device_probe_t ofw_pcib_probe;
62static device_attach_t ofw_pcib_attach;
63
64static device_method_t ofw_pcib_methods[] = {
65 /* Device interface */
66 DEVMETHOD(device_probe, ofw_pcib_probe),
67 DEVMETHOD(device_attach, ofw_pcib_attach),
68
69 /* Bus interface */
70
71 /* pcib interface */
72 DEVMETHOD(pcib_route_interrupt, ofw_pcib_gen_route_interrupt),
73
74 /* ofw_bus interface */
75 DEVMETHOD(ofw_bus_get_node, ofw_pcib_gen_get_node),
76
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77 KOBJMETHOD_END
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| 77 DEVMETHOD_END |
78};
79
80static devclass_t pcib_devclass;
81
82DEFINE_CLASS_1(pcib, ofw_pcib_driver, ofw_pcib_methods,
83 sizeof(struct ofw_pcib_gen_softc), pcib_driver);
84EARLY_DRIVER_MODULE(ofw_pcib, pci, ofw_pcib_driver, pcib_devclass, 0, 0,
85 BUS_PASS_BUS);
86MODULE_DEPEND(ofw_pcib, pci, 1, 1, 1);
87
88static int
89ofw_pcib_probe(device_t dev)
90{
91 char desc[sizeof("OFW PCIe-PCIe bridge")];
92 const char *dtype, *pbdtype;
93
94#define ISDTYPE(dtype, type) \
95 (((dtype) != NULL) && strcmp((dtype), (type)) == 0)
96
97 if ((pci_get_class(dev) == PCIC_BRIDGE) &&
98 (pci_get_subclass(dev) == PCIS_BRIDGE_PCI) &&
99 ofw_bus_get_node(dev) != 0) {
100 dtype = ofw_bus_get_type(dev);
101 pbdtype = ofw_bus_get_type(device_get_parent(
102 device_get_parent(dev)));
103 snprintf(desc, sizeof(desc), "OFW PCI%s-PCI%s bridge",
104 ISDTYPE(pbdtype, OFW_TYPE_PCIE) ? "e" : "",
105 ISDTYPE(dtype, OFW_TYPE_PCIE) ? "e" : "");
106 device_set_desc_copy(dev, desc);
107 return (0);
108 }
109
110#undef ISDTYPE
111
112 return (ENXIO);
113}
114
115static int
116ofw_pcib_attach(device_t dev)
117{
118 struct ofw_pcib_gen_softc *sc;
119
120 sc = device_get_softc(dev);
121
122 /* Quirk handling */
123 switch (pci_get_devid(dev)) {
124 /*
125 * The ALi M5249 found in Fire-based machines by definition must me
126 * subtractive as they have a ISA bridge on their secondary side but
127 * don't indicate this in the class code although the ISA I/O range
128 * isn't included in their bridge decode.
129 */
130 case 0x524910b9:
131 sc->ops_pcib_sc.flags |= PCIB_SUBTRACTIVE;
132 break;
133 }
134
135 ofw_pcib_gen_setup(dev);
136 pcib_attach_common(dev);
137 device_add_child(dev, "pci", -1);
138 return (bus_generic_attach(dev));
139}
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