1 /* $NetBSD: pchb.c,v 1.9 2006/08/22 21:42:19 riz 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 1.9 2006/08/22 21:42:19 riz 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(struct device *, struct cfdata *, void *); 49 static void pchb_attach(struct device *, struct device *, void *); 50 51 CFATTACH_DECL(pchb, sizeof(struct device), 52 pchb_match, pchb_attach, NULL, NULL); 53 54 static int pcifound = 0; 55 56 static int 57 pchb_match(struct device *parent, struct cfdata *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 79 pchb_attach(struct device *parent, struct device *self, void *aux) 80 { 81 struct pci_attach_args *pa = aux; 82 char devinfo[256]; 83 84 printf("\n"); 85 pcifound++; 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", self->dv_xname, devinfo, 109 PCI_REVISION(pa->pa_class)); 110 } 111