1/*	$NetBSD: pchb.c,v 1.10 2011/06/06 17:13:05 matt 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 1.10 2011/06/06 17:13:05 matt 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
48static int	pchb_match(device_t, cfdata_t, void *);
49static void	pchb_attach(device_t, device_t, void *);
50
51CFATTACH_DECL_NEW(pchb, 0,
52    pchb_match, pchb_attach, NULL, NULL);
53
54static bool pcifound;
55
56static int
57pchb_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
78static void
79pchb_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