1/* $NetBSD: pcnet_pci.c,v 1.7 2005/12/11 12:17:49 christos Exp $ */ 2 3/* 4 * Copyright (c) 1996 5 * Matthias Drochner. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 * 27 */ 28 29 30#include <sys/types.h> 31#include <machine/pio.h> 32#include <lib/libkern/libkern.h> 33#include <lib/libsa/stand.h> 34 35#include <libi386.h> 36#include <pcivar.h> 37#include <bootinfo.h> 38 39#include "etherdrv.h" 40#include "lance.h" 41 42int lance_rap, lance_rdp; 43 44static pcihdl_t hdl; 45 46u_char eth_myaddr[6]; 47 48extern void am7990_init(void); 49extern void am7990_stop(void); 50 51static struct btinfo_netif bi_netif; 52 53int 54EtherInit(unsigned char *myadr) 55{ 56 int iobase, pcicsr, i; 57 58 if (pcicheck() == -1) { 59 printf("cannot access PCI\n"); 60 return 0; 61 } 62 63 if (pcifinddev(0x1022, 0x2000, &hdl)) { 64 printf("cannot find PCNET\n"); 65 return 0; 66 } 67 68 if (pcicfgread(&hdl, 0x10, &iobase) || !(iobase & 1)) { 69 printf("cannot map IO space\n"); 70 return 0; 71 } 72 iobase &= 0xfffffffc; 73 74 lance_rap = iobase + 0x12; 75 lance_rdp = iobase + 0x10; 76 77 /* make sure it's stopped */ 78 am7990_stop(); 79 80 /* enable bus mastering in PCI command register */ 81 if (pcicfgread(&hdl, 0x04, &pcicsr) 82 || pcicfgwrite(&hdl, 0x04, pcicsr | 4)) { 83 printf("cannot enable DMA\n"); 84 return 0; 85 } 86 87 for (i = 0; i < 6; i++) 88 myadr[i] = eth_myaddr[i] = inb(iobase + i); 89 90 am7990_init(); 91 92 strncpy(bi_netif.ifname, "le", sizeof(bi_netif.ifname)); 93 bi_netif.bus = BI_BUS_PCI; 94 bi_netif.addr.tag = hdl; 95 96 BI_ADD(&bi_netif, BTINFO_NETIF, sizeof(bi_netif)); 97 98 return 1; 99} 100