1 /* $NetBSD: pciide.c,v 1.1 2011/01/23 01:05:30 nisimura Exp $ */ 2 3 /*- 4 * Copyright (c) 2008 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Tohru Nishimura. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/param.h> 33 34 #include <lib/libsa/stand.h> 35 36 #include "globals.h" 37 38 static uint32_t pciiobase = PCI_XIOBASE; 39 40 struct myops { 41 int (*chipfix)(struct dkdev_ata *); 42 int (*presense)(struct dkdev_ata *, int); 43 }; 44 static int cmdidefix(struct dkdev_ata *); 45 static struct myops cmdideops = { cmdidefix, NULL }; 46 static struct myops *myops = &cmdideops; 47 48 int pciide_match(unsigned, void *); 49 void *pciide_init(unsigned, void *); 50 51 int 52 pciide_match(unsigned tag, void *data) 53 { 54 unsigned v; 55 56 v = pcicfgread(tag, PCI_ID_REG); 57 switch (v) { 58 case PCI_DEVICE(0x1095, 0x0680): /* SiI 0680 IDE */ 59 case PCI_DEVICE(0x1283, 0x8211): /* ITE 8211 IDE */ 60 case PCI_DEVICE(0x1106, 0x1571): /* VIA 82C586 IDE */ 61 case PCI_DEVICE(0x10ad, 0x0105): /* Symphony Labs 82C105 IDE */ 62 case PCI_DEVICE(0x10b8, 0x5229): /* ALi IDE */ 63 return 1; 64 } 65 return 0; 66 } 67 68 void * 69 pciide_init(unsigned tag, void *data) 70 { 71 int native, n; 72 unsigned val; 73 struct dkdev_ata *l; 74 75 l = alloc(sizeof(struct dkdev_ata)); 76 memset(l, 0, sizeof(struct dkdev_ata)); 77 l->iobuf = allocaligned(512, 16); 78 l->tag = tag; 79 80 val = pcicfgread(tag, PCI_CLASS_REG); 81 native = val & 03; 82 if (native) { 83 /* native, use BAR 01234 */ 84 l->bar[0] = pciiobase + (pcicfgread(tag, 0x10) &~ 01); 85 l->bar[1] = pciiobase + (pcicfgread(tag, 0x14) &~ 01); 86 l->bar[2] = pciiobase + (pcicfgread(tag, 0x18) &~ 01); 87 l->bar[3] = pciiobase + (pcicfgread(tag, 0x1c) &~ 01); 88 l->bar[4] = pciiobase + (pcicfgread(tag, 0x20) &~ 01); 89 l->chan[0].cmd = l->bar[0]; 90 l->chan[0].ctl = l->chan[0].alt = l->bar[1] | 02; 91 l->chan[0].dma = l->bar[4] + 0x0; 92 l->chan[1].cmd = l->bar[2]; 93 l->chan[1].ctl = l->chan[1].alt = l->bar[3] | 02; 94 l->chan[1].dma = l->bar[4] + 0x8; 95 } 96 else { 97 /* legacy */ 98 l->bar[0]= pciiobase + 0x1f0; 99 l->bar[1]= pciiobase + 0x3f4; 100 l->bar[2]= pciiobase + 0x170; 101 l->bar[3]= pciiobase + 0x374; 102 l->chan[0].cmd = l->bar[0]; 103 l->chan[0].ctl = l->chan[0].alt = l->bar[1] | 02; 104 l->chan[0].dma = 0; 105 l->chan[1].cmd = l->bar[2]; 106 l->chan[1].ctl = l->chan[1].alt = l->bar[3] | 02; 107 l->chan[1].dma = 0; 108 } 109 110 for (n = 0; n < 2; n++) { 111 if (myops->presense && (*myops->presense)(l, n) == 0) 112 l->presense[n] = 0; /* found not exist */ 113 else { 114 /* check to see whether soft reset works */ 115 l->presense[n] = perform_atareset(l, n); 116 } 117 if (l->presense[n]) 118 printf("channel %d present\n", n); 119 } 120 121 /* make sure to have PIO0 */ 122 if (myops->chipfix) 123 (*myops->chipfix)(l); 124 125 return l; 126 } 127 128 static int 129 cmdidefix(struct dkdev_ata *l) 130 { 131 int v; 132 133 v = pcicfgread(l->tag, 0x80); 134 pcicfgwrite(l->tag, 0x80, (v & ~0xff) | 0x01); 135 v = pcicfgread(l->tag, 0x84); 136 pcicfgwrite(l->tag, 0x84, (v & ~0xff) | 0x01); 137 v = pcicfgread(l->tag, 0xa4); 138 pcicfgwrite(l->tag, 0xa4, (v & ~0xffff) | 0x328a); 139 v = pcicfgread(l->tag, 0xb4); 140 pcicfgwrite(l->tag, 0xb4, (v & ~0xffff) | 0x328a); 141 142 return 1; 143 } 144