1 /* $NetBSD: mainbus.c,v 1.19 2005/12/11 12:16:08 christos 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 <sys/cdefs.h> 40 __KERNEL_RCSID(0, "$NetBSD: mainbus.c,v 1.19 2005/12/11 12:16:08 christos Exp $"); 41 42 #include "opt_algor_p4032.h" 43 #include "opt_algor_p5064.h" 44 #include "opt_algor_p6032.h" 45 46 #include "opt_pci.h" 47 48 #include <sys/param.h> 49 #include <sys/systm.h> 50 #include <sys/conf.h> 51 #include <sys/reboot.h> 52 #include <sys/device.h> 53 #include <sys/malloc.h> 54 #include <sys/extent.h> 55 56 #include <machine/bus.h> 57 #include <machine/autoconf.h> 58 59 #include <mips/cache.h> 60 61 #include <dev/pci/pcivar.h> 62 #include <dev/pci/pciconf.h> 63 64 #if defined(PCI_NETBSD_CONFIGURE) && defined(PCI_NETBSD_ENABLE_IDE) 65 #if defined(ALGOR_P5064) || defined(ALGOR_P6032) 66 #include <dev/pci/pciide_piix_reg.h> 67 #endif /* ALGOR_P5064 || ALGOR_P6032 */ 68 #endif /* PCI_NETBSD_CONFIGURE && PCI_NETBSD_ENABLE_IDE */ 69 70 #include "locators.h" 71 #include "pci.h" 72 73 int mainbus_match(struct device *, struct cfdata *, void *); 74 void mainbus_attach(struct device *, struct device *, void *); 75 76 CFATTACH_DECL(mainbus, sizeof(struct device), 77 mainbus_match, mainbus_attach, NULL, NULL); 78 79 int mainbus_print(void *, const char *); 80 int mainbus_submatch(struct device *, struct cfdata *, 81 const int *, void *); 82 83 /* There can be only one. */ 84 int mainbus_found; 85 86 struct mainbusdev { 87 const char *md_name; 88 bus_addr_t md_addr; 89 int md_irq; 90 }; 91 92 #if defined(ALGOR_P4032) 93 #include <algor/algor/algor_p4032reg.h> 94 #include <algor/algor/algor_p4032var.h> 95 96 struct mainbusdev mainbusdevs[] = { 97 { "cpu", -1, -1 }, 98 { "mcclock", P4032_RTC, P4032_IRQ_RTC }, 99 { "com", P4032_COM1, P4032_IRQ_COM1 }, 100 { "com", P4032_COM2, P4032_IRQ_COM2 }, 101 { "lpt", P4032_LPT, P4032_IRQ_LPT }, 102 { "pckbc", P4032_PCKBC, P4032_IRQ_PCKBC }, 103 { "fdc", P4032_FDC, P4032_IRQ_FLOPPY }, 104 { "vtpbc", P4032_V962PBC, -1 }, 105 106 { NULL, 0, 0 }, 107 }; 108 #endif /* ALGOR_P4032 */ 109 110 #if defined(ALGOR_P5064) 111 #include <algor/algor/algor_p5064reg.h> 112 #include <algor/algor/algor_p5064var.h> 113 114 struct mainbusdev mainbusdevs[] = { 115 { "cpu", -1, -1 }, 116 { "vtpbc", P5064_V360EPC, -1 }, 117 118 { NULL, 0, 0 }, 119 }; 120 #endif /* ALGOR_P5064 */ 121 122 #if defined(ALGOR_P6032) 123 #include <algor/algor/algor_p6032reg.h> 124 #include <algor/algor/algor_p6032var.h> 125 126 struct mainbusdev mainbusdevs[] = { 127 { "cpu", -1, -1 }, 128 { "bonito", BONITO_REG_BASE, -1 }, 129 130 { NULL, 0, 0 }, 131 }; 132 #endif /* ALGOR_P6032 */ 133 134 int 135 mainbus_match(struct device *parent, struct cfdata *cf, void *aux) 136 { 137 138 if (mainbus_found) 139 return (0); 140 141 return (1); 142 } 143 144 void 145 mainbus_attach(struct device *parent, struct device *self, void *aux) 146 { 147 struct mainbus_attach_args ma; 148 struct mainbusdev *md; 149 bus_space_tag_t st; 150 #if defined(PCI_NETBSD_CONFIGURE) 151 struct extent *ioext, *memext; 152 pci_chipset_tag_t pc; 153 #if defined(PCI_NETBSD_ENABLE_IDE) 154 pcitag_t idetag; 155 pcireg_t idetim; 156 #endif 157 #endif 158 159 mainbus_found = 1; 160 161 printf("\n"); 162 163 #if NPCI > 0 && defined(PCI_NETBSD_CONFIGURE) 164 #if defined(ALGOR_P4032) 165 /* 166 * Reserve the bottom 64K of the I/O space for ISA devices. 167 */ 168 ioext = extent_create("pciio", 0x00010000, 0x000effff, 169 M_DEVBUF, NULL, 0, EX_NOWAIT); 170 memext = extent_create("pcimem", 0x01000000, 0x07ffffff, 171 M_DEVBUF, NULL, 0, EX_NOWAIT); 172 173 pc = &p4032_configuration.ac_pc; 174 #elif defined(ALGOR_P5064) 175 /* 176 * Reserve the bottom 512K of the I/O space for ISA devices. 177 * According to the PMON sources, this is a work-around for 178 * a bug in the ISA bridge. 179 */ 180 ioext = extent_create("pciio", 0x00080000, 0x00ffffff, 181 M_DEVBUF, NULL, 0, EX_NOWAIT); 182 memext = extent_create("pcimem", 0x01000000, 0x07ffffff, 183 M_DEVBUF, NULL, 0, EX_NOWAIT); 184 185 pc = &p5064_configuration.ac_pc; 186 #if defined(PCI_NETBSD_ENABLE_IDE) 187 idetag = pci_make_tag(pc, 0, 2, 1); 188 #endif 189 #elif defined(ALGOR_P6032) 190 /* 191 * Reserve the bottom 64K of the I/O space for ISA devices. 192 */ 193 ioext = extent_create("pciio", 0x00010000, 0x000effff, 194 M_DEVBUF, NULL, 0, EX_NOWAIT); 195 memext = extent_create("pcimem", 0x01000000, 0x0affffff, 196 M_DEVBUF, NULL, 0, EX_NOWAIT); 197 198 pc = &p6032_configuration.ac_pc; 199 #if defined(PCI_NETBSD_ENABLE_IDE) 200 idetag = pci_make_tag(pc, 0, 17, 1); 201 #endif 202 #endif /* ALGOR_P4032 || ALGOR_P5064 || ALGOR_P6032 */ 203 204 pci_configure_bus(pc, ioext, memext, NULL, 0, mips_dcache_align); 205 extent_destroy(ioext); 206 extent_destroy(memext); 207 208 #if defined(PCI_NETBSD_ENABLE_IDE) 209 /* 210 * Perhaps PMON has not enabled the IDE controller. Easy to 211 * fix -- just set the ENABLE bits for each channel in the 212 * IDETIM register. Just clear all the bits for the channel 213 * except for the ENABLE bits -- the `pciide' driver will 214 * properly configure it later. 215 */ 216 idetim = 0; 217 if (PCI_NETBSD_ENABLE_IDE & 0x01) 218 idetim = PIIX_IDETIM_SET(idetim, PIIX_IDETIM_IDE, 0); 219 if (PCI_NETBSD_ENABLE_IDE & 0x02) 220 idetim = PIIX_IDETIM_SET(idetim, PIIX_IDETIM_IDE, 1); 221 pci_conf_write(pc, idetag, PIIX_IDETIM, idetim); 222 #endif 223 #endif /* NPCI > 0 && defined(PCI_NETBSD_CONFIGURE) */ 224 225 #if defined(ALGOR_P4032) 226 st = &p4032_configuration.ac_lociot; 227 #elif defined(ALGOR_P5064) 228 st = NULL; 229 #elif defined(ALGOR_P6032) 230 st = NULL; 231 #endif 232 233 for (md = mainbusdevs; md->md_name != NULL; md++) { 234 ma.ma_name = md->md_name; 235 ma.ma_st = st; 236 ma.ma_addr = md->md_addr; 237 ma.ma_irq = md->md_irq; 238 (void) config_found_sm_loc(self, "mainbus", NULL, &ma, 239 mainbus_print, mainbus_submatch); 240 } 241 } 242 243 int 244 mainbus_print(void *aux, const char *pnp) 245 { 246 struct mainbus_attach_args *ma = aux; 247 248 if (pnp) 249 aprint_normal("%s at %s", ma->ma_name, pnp); 250 if (ma->ma_addr != (bus_addr_t) -1) 251 aprint_normal(" addr 0x%lx", ma->ma_addr); 252 253 return (UNCONF); 254 } 255 256 int 257 mainbus_submatch(struct device *parent, struct cfdata *cf, 258 const int *ldesc, void *aux) 259 { 260 struct mainbus_attach_args *ma = aux; 261 262 if (cf->cf_loc[MAINBUSCF_ADDR] != MAINBUSCF_ADDR_DEFAULT && 263 cf->cf_loc[MAINBUSCF_ADDR] != ma->ma_addr) 264 return (0); 265 266 return (config_match(parent, cf, aux)); 267 } 268