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pciide.c revision 1.7.4.2 
      1 /* $NetBSD: pciide.c,v 1.7.4.2 2011/06/06 09:06:35 jruoho 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 int cmdidefix(struct dkdev_ata *);
     39 
     40 static uint32_t pciiobase = PCI_XIOBASE;
     41 
     42 struct myops {
     43 	int (*chipfix)(struct dkdev_ata *);
     44 	int (*presense)(struct dkdev_ata *, int);
     45 };
     46 static struct myops defaultops = { NULL, NULL };
     47 static struct myops cmdideops = { cmdidefix, NULL };
     48 static struct myops *myops;
     49 
     50 int
     51 pciide_match(unsigned tag, void *data)
     52 {
     53 	unsigned v;
     54 
     55 	v = pcicfgread(tag, PCI_ID_REG);
     56 	switch (v) {
     57 	case PCI_DEVICE(0x1095, 0x0680): /* SiI 0680 IDE */
     58 		myops = &cmdideops;
     59 		return 1;
     60 	case PCI_DEVICE(0x1283, 0x8211): /* ITE 8211 IDE */
     61 	case PCI_DEVICE(0x1106, 0x1571): /* VIA 82C586 IDE */
     62 	case PCI_DEVICE(0x1106, 0x3164): /* VIA VT6410 */
     63 	case PCI_DEVICE(0x10ad, 0x0105): /* Symphony Labs 82C105 IDE */
     64 	case PCI_DEVICE(0x10b8, 0x5229): /* ALi IDE */
     65 	case PCI_DEVICE(0x1191, 0x0008): /* ACARD ATP865 */
     66 	case PCI_DEVICE(0x1191, 0x0009): /* ACARD ATP865A */
     67 		myops = &defaultops;
     68 		return 1;
     69 	}
     70 	return 0;
     71 }
     72 
     73 void *
     74 pciide_init(unsigned tag, void *data)
     75 {
     76 	int native, n;
     77 	unsigned val;
     78 	struct dkdev_ata *l;
     79 
     80 	l = alloc(sizeof(struct dkdev_ata));
     81 	memset(l, 0, sizeof(struct dkdev_ata));
     82 	l->iobuf = allocaligned(512, 16);
     83 	l->tag = tag;
     84 
     85 	val = pcicfgread(tag, PCI_CLASS_REG);
     86 	native = PCI_CLASS(val) != PCI_CLASS_IDE ||
     87 	    (PCI_INTERFACE(val) & 05) != 0;
     88 	if (native) {
     89 		/* native, use BAR 01234 */
     90 		l->bar[0] = pciiobase + (pcicfgread(tag, 0x10) &~ 01);
     91 		l->bar[1] = pciiobase + (pcicfgread(tag, 0x14) &~ 01);
     92 		l->bar[2] = pciiobase + (pcicfgread(tag, 0x18) &~ 01);
     93 		l->bar[3] = pciiobase + (pcicfgread(tag, 0x1c) &~ 01);
     94 		l->bar[4] = pciiobase + (pcicfgread(tag, 0x20) &~ 01);
     95 		l->chan[0].cmd = l->bar[0];
     96 		l->chan[0].ctl = l->chan[0].alt = l->bar[1] | 02;
     97 		l->chan[0].dma = l->bar[4] + 0x0;
     98 		l->chan[1].cmd = l->bar[2];
     99 		l->chan[1].ctl = l->chan[1].alt = l->bar[3] | 02;
    100 		l->chan[1].dma = l->bar[4] + 0x8;
    101 	}
    102 	else {
    103 		/* legacy */
    104 		l->bar[0]= pciiobase + 0x1f0;
    105 		l->bar[1]= pciiobase + 0x3f4;
    106 		l->bar[2]= pciiobase + 0x170;
    107 		l->bar[3]= pciiobase + 0x374;
    108 		l->chan[0].cmd = l->bar[0];
    109 		l->chan[0].ctl = l->chan[0].alt = l->bar[1] | 02;
    110 		l->chan[0].dma = 0;
    111 		l->chan[1].cmd = l->bar[2];
    112 		l->chan[1].ctl = l->chan[1].alt = l->bar[3] | 02;
    113 		l->chan[1].dma = 0;
    114 	}
    115 
    116 	for (n = 0; n < 2; n++) {
    117 		if (myops->presense && (*myops->presense)(l, n) == 0)
    118 			l->presense[n] = 0; /* found not exist */
    119 		else {
    120 			/* check to see whether soft reset works */
    121 			l->presense[n] = perform_atareset(l, n);
    122 		}
    123 		if (l->presense[n])
    124 			printf("channel %d present\n", n);
    125 	}
    126 
    127 	/* make sure to have PIO0 */
    128 	if (myops->chipfix)
    129 		(*myops->chipfix)(l);
    130 
    131 	return l;
    132 }
    133 
    134 static int
    135 cmdidefix(struct dkdev_ata *l)
    136 {
    137 	int v;
    138 
    139 	v = pcicfgread(l->tag, 0x80);
    140 	pcicfgwrite(l->tag, 0x80, (v & ~0xff) | 0x01);
    141 	v = pcicfgread(l->tag, 0x84);
    142 	pcicfgwrite(l->tag, 0x84, (v & ~0xff) | 0x01);
    143 	v = pcicfgread(l->tag, 0xa4);
    144 	pcicfgwrite(l->tag, 0xa4, (v & ~0xffff) | 0x328a);
    145 	v = pcicfgread(l->tag, 0xb4);
    146 	pcicfgwrite(l->tag, 0xb4, (v & ~0xffff) | 0x328a);
    147 
    148 	return 1;
    149 }
    150