1 /* $NetBSD: mainbus.c,v 1.8 2002/01/02 14:48:09 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 <mips/cache.h> 57 58 #include <dev/pci/pcivar.h> 59 #include <dev/pci/pciconf.h> 60 61 #if defined(PCI_NETBSD_CONFIGURE) && defined(PCI_NETBSD_ENABLE_IDE) 62 #if defined(ALGOR_P5064) || defined(ALGOR_P6032) 63 #include <dev/pci/pciide_piix_reg.h> 64 #endif /* ALGOR_P5064 || ALGOR_P6032 */ 65 #endif /* PCI_NETBSD_CONFIGURE && PCI_NETBSD_ENABLE_IDE */ 66 67 #include "locators.h" 68 #include "pci.h" 69 70 int mainbus_match(struct device *, struct cfdata *, void *); 71 void mainbus_attach(struct device *, struct device *, void *); 72 73 struct cfattach mainbus_ca = { 74 sizeof(struct device), mainbus_match, mainbus_attach, 75 }; 76 77 int mainbus_print(void *, const char *); 78 int mainbus_submatch(struct device *, struct cfdata *, void *); 79 80 /* There can be only one. */ 81 int mainbus_found; 82 83 struct mainbusdev { 84 const char *md_name; 85 bus_addr_t md_addr; 86 int md_irq; 87 }; 88 89 #if defined(ALGOR_P4032) 90 #include <algor/algor/algor_p4032reg.h> 91 #include <algor/algor/algor_p4032var.h> 92 93 struct mainbusdev mainbusdevs[] = { 94 { "cpu", -1, -1 }, 95 { "mcclock", P4032_RTC, P4032_IRQ_RTC }, 96 { "com", P4032_COM1, P4032_IRQ_COM1 }, 97 { "com", P4032_COM2, P4032_IRQ_COM2 }, 98 { "lpt", P4032_LPT, P4032_IRQ_LPT }, 99 { "pckbc", P4032_PCKBC, P4032_IRQ_PCKBC }, 100 { "fdc", P4032_FDC, P4032_IRQ_FLOPPY }, 101 { "vtpbc", P4032_V962PBC, -1 }, 102 103 { NULL, 0, 0 }, 104 }; 105 #endif /* ALGOR_P4032 */ 106 107 #if defined(ALGOR_P5064) 108 #include <algor/algor/algor_p5064reg.h> 109 #include <algor/algor/algor_p5064var.h> 110 111 struct mainbusdev mainbusdevs[] = { 112 { "cpu", -1, -1 }, 113 { "vtpbc", P5064_V360EPC, -1 }, 114 115 { NULL, 0, 0 }, 116 }; 117 #endif /* ALGOR_P5064 */ 118 119 #if defined(ALGOR_P6032) 120 #include <algor/algor/algor_p6032reg.h> 121 #include <algor/algor/algor_p6032var.h> 122 123 struct mainbusdev mainbusdevs[] = { 124 { "cpu", -1, -1 }, 125 { "bonito", BONITO_REG_BASE, -1 }, 126 127 { NULL, 0, 0 }, 128 }; 129 #endif /* ALGOR_P6032 */ 130 131 int 132 mainbus_match(struct device *parent, struct cfdata *cf, void *aux) 133 { 134 135 if (mainbus_found) 136 return (0); 137 138 return (1); 139 } 140 141 void 142 mainbus_attach(struct device *parent, struct device *self, void *aux) 143 { 144 struct mainbus_attach_args ma; 145 struct mainbusdev *md; 146 bus_space_tag_t st; 147 #if defined(PCI_NETBSD_CONFIGURE) 148 struct extent *ioext, *memext; 149 pci_chipset_tag_t pc; 150 #if defined(PCI_NETBSD_ENABLE_IDE) 151 pcitag_t idetag; 152 pcireg_t idetim; 153 #endif 154 #endif 155 156 mainbus_found = 1; 157 158 printf("\n"); 159 160 #if NPCI > 0 && defined(PCI_NETBSD_CONFIGURE) 161 #if defined(ALGOR_P4032) 162 /* 163 * Reserve the bottom 64K of the I/O space for ISA devices. 164 */ 165 ioext = extent_create("pciio", 0x00010000, 0x000effff, 166 M_DEVBUF, NULL, 0, EX_NOWAIT); 167 memext = extent_create("pcimem", 0x01000000, 0x07ffffff, 168 M_DEVBUF, NULL, 0, EX_NOWAIT); 169 170 pc = &p4032_configuration.ac_pc; 171 #elif defined(ALGOR_P5064) 172 /* 173 * Reserve the bottom 512K of the I/O space for ISA devices. 174 * According to the PMON sources, this is a work-around for 175 * a bug in the ISA bridge. 176 */ 177 ioext = extent_create("pciio", 0x00080000, 0x00ffffff, 178 M_DEVBUF, NULL, 0, EX_NOWAIT); 179 memext = extent_create("pcimem", 0x01000000, 0x07ffffff, 180 M_DEVBUF, NULL, 0, EX_NOWAIT); 181 182 pc = &p5064_configuration.ac_pc; 183 #if defined(PCI_NETBSD_ENABLE_IDE) 184 idetag = pci_make_tag(pc, 0, 2, 1); 185 #endif 186 #elif defined(ALGOR_P6032) 187 /* 188 * Reserve the bottom 64K of the I/O space for ISA devices. 189 */ 190 ioext = extent_create("pciio", 0x00010000, 0x000effff, 191 M_DEVBUF, NULL, 0, EX_NOWAIT); 192 memext = extent_create("pcimem", 0x01000000, 0x0affffff, 193 M_DEVBUF, NULL, 0, EX_NOWAIT); 194 195 pc = &p6032_configuration.ac_pc; 196 #if defined(PCI_NETBSD_ENABLE_IDE) 197 idetag = pci_make_tag(pc, 0, 17, 1); 198 #endif 199 #endif /* ALGOR_P4032 || ALGOR_P5064 || ALGOR_P6032 */ 200 201 pci_configure_bus(pc, ioext, memext, NULL, 0, mips_dcache_align); 202 extent_destroy(ioext); 203 extent_destroy(memext); 204 205 #if defined(PCI_NETBSD_ENABLE_IDE) 206 /* 207 * Perhaps PMON has not enabled the IDE controller. Easy to 208 * fix -- just set the ENABLE bits for each channel in the 209 * IDETIM register. Just clear all the bits for the channel 210 * except for the ENABLE bits -- the `pciide' driver will 211 * properly configure it later. 212 */ 213 idetim = 0; 214 if (PCI_NETBSD_ENABLE_IDE & 0x01) 215 idetim = PIIX_IDETIM_SET(idetim, PIIX_IDETIM_IDE, 0); 216 if (PCI_NETBSD_ENABLE_IDE & 0x02) 217 idetim = PIIX_IDETIM_SET(idetim, PIIX_IDETIM_IDE, 1); 218 pci_conf_write(pc, idetag, PIIX_IDETIM, idetim); 219 #endif 220 #endif /* NPCI > 0 && defined(PCI_NETBSD_CONFIGURE) */ 221 222 #if defined(ALGOR_P4032) 223 st = &p4032_configuration.ac_lociot; 224 #elif defined(ALGOR_P5064) 225 st = NULL; 226 #elif defined(ALGOR_P6032) 227 st = NULL; 228 #endif 229 230 for (md = mainbusdevs; md->md_name != NULL; md++) { 231 ma.ma_name = md->md_name; 232 ma.ma_st = st; 233 ma.ma_addr = md->md_addr; 234 ma.ma_irq = md->md_irq; 235 (void) config_found_sm(self, &ma, mainbus_print, 236 mainbus_submatch); 237 } 238 } 239 240 int 241 mainbus_print(void *aux, const char *pnp) 242 { 243 struct mainbus_attach_args *ma = aux; 244 245 if (pnp) 246 printf("%s at %s", ma->ma_name, pnp); 247 if (ma->ma_addr != (bus_addr_t) -1) 248 printf(" %s 0x%lx", mainbuscf_locnames[MAINBUSCF_ADDR], 249 ma->ma_addr); 250 251 return (UNCONF); 252 } 253 254 int 255 mainbus_submatch(struct device *parent, struct cfdata *cf, void *aux) 256 { 257 struct mainbus_attach_args *ma = aux; 258 259 if (cf->cf_loc[MAINBUSCF_ADDR] != MAINBUSCF_ADDR_DEFAULT && 260 cf->cf_loc[MAINBUSCF_ADDR] != ma->ma_addr) 261 return (0); 262 263 return ((*cf->cf_attach->ca_match)(parent, cf, aux)); 264 } 265