mainbus.c revision 1.4
1/* $NetBSD: mainbus.c,v 1.4 2001/08/22 00:40:38 thorpej Exp $ */ 2 3/*- 4 * Copyright (c) 2001 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe. 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 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39#include "opt_algor_p4032.h" 40#include "opt_algor_p5064.h" 41#include "opt_algor_p6032.h" 42 43#include "opt_pci.h" 44 45#include <sys/param.h> 46#include <sys/systm.h> 47#include <sys/conf.h> 48#include <sys/reboot.h> 49#include <sys/device.h> 50#include <sys/malloc.h> 51#include <sys/extent.h> 52 53#include <machine/bus.h> 54#include <machine/autoconf.h> 55 56#include <dev/pci/pcivar.h> 57#include <dev/pci/pciconf.h> 58 59#if defined(PCI_NETBSD_CONFIGURE) && defined(PCI_NETBSD_ENABLE_IDE) 60#if defined(ALGOR_P5064) || defined(ALGOR_P6032) 61#include <dev/pci/pciide_piix_reg.h> 62#endif /* ALGOR_P5064 || ALGOR_P6032 */ 63#endif /* PCI_NETBSD_CONFIGURE && PCI_NETBSD_ENABLE_IDE */ 64 65#include "locators.h" 66#include "pci.h" 67 68int mainbus_match(struct device *, struct cfdata *, void *); 69void mainbus_attach(struct device *, struct device *, void *); 70 71struct cfattach mainbus_ca = { 72 sizeof(struct device), mainbus_match, mainbus_attach, 73}; 74 75int mainbus_print(void *, const char *); 76int mainbus_submatch(struct device *, struct cfdata *, void *); 77 78/* There can be only one. */ 79int mainbus_found; 80 81struct mainbusdev { 82 const char *md_name; 83 bus_addr_t md_addr; 84 int md_irq; 85}; 86 87#if defined(ALGOR_P4032) 88#include <algor/algor/algor_p4032reg.h> 89#include <algor/algor/algor_p4032var.h> 90 91struct mainbusdev mainbusdevs[] = { 92 { "cpu", -1, -1 }, 93 { "mcclock", P4032_RTC, P4032_IRQ_RTC }, 94 { "com", P4032_COM1, P4032_IRQ_COM1 }, 95 { "com", P4032_COM2, P4032_IRQ_COM2 }, 96 { "lpt", P4032_LPT, P4032_IRQ_LPT }, 97 { "pckbc", P4032_PCKBC, P4032_IRQ_PCKBC }, 98 { "fdc", P4032_FDC, P4032_IRQ_FLOPPY }, 99 { "vtpbc", P4032_V962PBC, -1 }, 100 101 { NULL, 0, 0 }, 102}; 103#endif /* ALGOR_P4032 */ 104 105#if defined(ALGOR_P5064) 106#include <algor/algor/algor_p5064reg.h> 107#include <algor/algor/algor_p5064var.h> 108 109struct mainbusdev mainbusdevs[] = { 110 { "cpu", -1, -1 }, 111 { "vtpbc", P5064_V360EPC, -1 }, 112 113 { NULL, 0, 0 }, 114}; 115#endif /* ALGOR_P5064 */ 116 117#if defined(ALGOR_P6032) 118#include <algor/algor/algor_p6032reg.h> 119#include <algor/algor/algor_p6032var.h> 120 121struct mainbusdev mainbusdevs[] = { 122 { "cpu", -1, -1 }, 123 { "bonito", BONITO_REG_BASE, -1 }, 124 125 { NULL, 0, 0 }, 126}; 127#endif /* ALGOR_P6032 */ 128 129int 130mainbus_match(struct device *parent, struct cfdata *cf, void *aux) 131{ 132 133 if (mainbus_found) 134 return (0); 135 136 return (1); 137} 138 139void 140mainbus_attach(struct device *parent, struct device *self, void *aux) 141{ 142 struct mainbus_attach_args ma; 143 struct mainbusdev *md; 144 bus_space_tag_t st; 145#if defined(PCI_NETBSD_CONFIGURE) 146 struct extent *ioext, *memext; 147 pci_chipset_tag_t pc; 148#if defined(PCI_NETBSD_ENABLE_IDE) 149 pcitag_t idetag; 150 pcireg_t idetim; 151#endif 152#endif 153 154 mainbus_found = 1; 155 156 printf("\n"); 157 158#if NPCI > 0 && defined(PCI_NETBSD_CONFIGURE) 159#if defined(ALGOR_P4032) 160 /* 161 * Reserve the bottom 64K of the I/O space for ISA devices. 162 */ 163 ioext = extent_create("pciio", 0x00010000, 0x000effff, 164 M_DEVBUF, NULL, 0, EX_NOWAIT); 165 memext = extent_create("pcimem", 0x01000000, 0x07ffffff, 166 M_DEVBUF, NULL, 0, EX_NOWAIT); 167 168 pc = &p4032_configuration.ac_pc; 169#elif defined(ALGOR_P5064) 170 /* 171 * Reserve the bottom 512K of the I/O space for ISA devices. 172 * According to the PMON sources, this is a work-around for 173 * a bug in the ISA bridge. 174 */ 175 ioext = extent_create("pciio", 0x00080000, 0x00ffffff, 176 M_DEVBUF, NULL, 0, EX_NOWAIT); 177 memext = extent_create("pcimem", 0x01000000, 0x07ffffff, 178 M_DEVBUF, NULL, 0, EX_NOWAIT); 179 180 pc = &p5064_configuration.ac_pc; 181#if defined(PCI_NETBSD_ENABLE_IDE) 182 idetag = pci_make_tag(pc, 0, 2, 1); 183#endif 184#elif defined(ALGOR_P6032) 185 /* 186 * Reserve the bottom 64K of the I/O spcae for ISA devices. 187 */ 188 ioext = extent_create("pciio", 0x00010000, 0x000effff, 189 M_DEVBUF, NULL, 0, EX_NOWAIT); 190 memext = extent_create("pcimem", 0x01000000, 0x0affffff, 191 M_DEVBUF, NULL, 0, EX_NOWAIT); 192 193 pc = &p6032_configuration.ac_pc; 194#if defined(PCI_NETBSD_ENABLE_IDE) 195 idetag = pci_make_tag(pc, 0, 17, 1); 196#endif 197#endif /* ALGOR_P4032 || ALGOR_P5064 || ALGOR_P6032 */ 198 199 pci_configure_bus(pc, ioext, memext, NULL); 200 extent_destroy(ioext); 201 extent_destroy(memext); 202 203#if defined(PCI_NETBSD_ENABLE_IDE) 204 /* 205 * Perhaps PMON has not enabled the IDE controller. Easy to 206 * fix -- just set the ENABLE bits for each channel in the 207 * IDETIM register. Just clear all the bits for the channel 208 * except for the ENABLE bits -- the `pciide' driver will 209 * properly configure it later. 210 */ 211 idetim = 0; 212 if (PCI_NETBSD_ENABLE_IDE & 0x01) 213 idetim = PIIX_IDETIM_SET(idetim, PIIX_IDETIM_IDE, 0); 214 if (PCI_NETBSD_ENABLE_IDE & 0x02) 215 idetim = PIIX_IDETIM_SET(idetim, PIIX_IDETIM_IDE, 1); 216 pci_conf_write(pc, idetag, PIIX_IDETIM, idetim); 217#endif 218#endif /* NPCI > 0 && defined(PCI_NETBSD_CONFIGURE) */ 219 220#if defined(ALGOR_P4032) 221 st = &p4032_configuration.ac_lociot; 222#elif defined(ALGOR_P5064) 223 st = NULL; 224#elif defined(ALGOR_P6032) 225 st = NULL; 226#endif 227 228 for (md = mainbusdevs; md->md_name != NULL; md++) { 229 ma.ma_name = md->md_name; 230 ma.ma_st = st; 231 ma.ma_addr = md->md_addr; 232 ma.ma_irq = md->md_irq; 233 (void) config_found_sm(self, &ma, mainbus_print, 234 mainbus_submatch); 235 } 236} 237 238int 239mainbus_print(void *aux, const char *pnp) 240{ 241 struct mainbus_attach_args *ma = aux; 242 243 if (pnp) 244 printf("%s at %s", ma->ma_name, pnp); 245 if (ma->ma_addr != (bus_addr_t) -1) 246 printf(" %s 0x%lx", mainbuscf_locnames[MAINBUSCF_ADDR], 247 ma->ma_addr); 248 249 return (UNCONF); 250} 251 252int 253mainbus_submatch(struct device *parent, struct cfdata *cf, void *aux) 254{ 255 struct mainbus_attach_args *ma = aux; 256 257 if (cf->cf_loc[MAINBUSCF_ADDR] != MAINBUSCF_ADDR_DEFAULT && 258 cf->cf_loc[MAINBUSCF_ADDR] != ma->ma_addr) 259 return (0); 260 261 return ((*cf->cf_attach->ca_match)(parent, cf, aux)); 262} 263