1 /* $NetBSD: pchb.c,v 1.11 2012/10/27 17:17:51 chs Exp $ */
2
3 /*
4 * Copyright 2002 Wasabi Systems, Inc.
5 * All rights reserved.
6 *
7 * Written by Simon Burge for Wasabi Systems, Inc.
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. All advertising materials mentioning features or use of this software
18 * must display the following acknowledgement:
19 * This product includes software developed for the NetBSD Project by
20 * Wasabi Systems, Inc.
21 * 4. The name of Wasabi Systems, Inc. may not be used to endorse
22 * or promote products derived from this software without specific prior
23 * written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
35 * POSSIBILITY OF SUCH DAMAGE.
36 */
37
38 #include <sys/cdefs.h>
39 __KERNEL_RCSID(0, "$NetBSD: pchb.c,v 1.11 2012/10/27 17:17:51 chs Exp $");
40
41 #include <sys/param.h>
42 #include <sys/device.h>
43 #include <sys/systm.h>
44
45 #include <dev/pci/pcivar.h>
46 #include <dev/pci/pcidevs.h>
47
48 static int pchb_match(device_t, cfdata_t, void *);
49 static void pchb_attach(device_t, device_t, void *);
50
51 CFATTACH_DECL_NEW(pchb, 0,
52 pchb_match, pchb_attach, NULL, NULL);
53
54 static bool pcifound;
55
56 static int
pchb_match(device_t parent,cfdata_t match,void * aux)57 pchb_match(device_t parent, cfdata_t match, void *aux)
58 {
59 struct pci_attach_args *pa = aux;
60
61 /*
62 * Match all known PCI host chipsets.
63 */
64 if (PCI_CLASS(pa->pa_class) == PCI_CLASS_BRIDGE &&
65 PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_BRIDGE_HOST) {
66 switch (PCI_VENDOR(pa->pa_id)) {
67 case PCI_VENDOR_MARVELL:
68 switch (PCI_PRODUCT(pa->pa_id)) {
69 case PCI_PRODUCT_MARVELL_GT64120:
70 return (!pcifound);
71 }
72 break;
73 }
74 }
75 return (0);
76 }
77
78 static void
pchb_attach(device_t parent,device_t self,void * aux)79 pchb_attach(device_t parent, device_t self, void *aux)
80 {
81 struct pci_attach_args *pa = aux;
82 char devinfo[256];
83
84 printf("\n");
85 pcifound = true;
86
87 /*
88 * All we do is print out a description. Eventually, we
89 * might want to add code that does something that's
90 * possibly chipset-specific.
91 */
92 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_MARVELL &&
93 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_MARVELL_GT64120) {
94 /* Bah, same product ID... */
95
96 /*
97 * XXX: Is the >= 0x10 test correct? The '120 doco
98 * lists rev == 0x02 and the '120A doco lists
99 * rev == 0x10.
100 */
101 snprintf(devinfo, sizeof(devinfo),
102 "Galileo Technology GT-64120%s System Controller",
103 PCI_REVISION(pa->pa_class) >= 0x10 ? "A" : "");
104 } else {
105 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo,
106 sizeof(devinfo));
107 }
108 printf("%s: %s (rev. 0x%02x)\n", device_xname(self), devinfo,
109 PCI_REVISION(pa->pa_class));
110 }
111