sys/arch/algor/dev/mainbus.c

   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  *
  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/cdefs.h>
  33 __KERNEL_RCSID(0, "$NetBSD: mainbus.c,v 1.19 2005/12/11 12:16:08 christos Exp $");
  34
  35 #include "opt_algor_p4032.h"
  36 #include "opt_algor_p5064.h"
  37 #include "opt_algor_p6032.h"
  38
  39 #include "opt_pci.h"
  40
  41 #include <sys/param.h>
  42 #include <sys/systm.h>
  43 #include <sys/conf.h>
  44 #include <sys/reboot.h>
  45 #include <sys/device.h>
  46 #include <sys/malloc.h>
  47 #include <sys/extent.h>
  48
  49 #include <machine/bus.h>
  50 #include <machine/autoconf.h>
  51
  52 #include <mips/cache.h>
  53
  54 #include <dev/pci/pcivar.h>
  55 #include <dev/pci/pciconf.h>
  56
  57 #if defined(PCI_NETBSD_CONFIGURE) && defined(PCI_NETBSD_ENABLE_IDE)
  58 #if defined(ALGOR_P5064) || defined(ALGOR_P6032)
  59 #include <dev/pci/pciide_piix_reg.h>
  60 #endif /* ALGOR_P5064 || ALGOR_P6032 */
  61 #endif /* PCI_NETBSD_CONFIGURE && PCI_NETBSD_ENABLE_IDE */
  62
  63 #include "locators.h"
  64 #include "pci.h"
  65
  66 int     mainbus_match(struct device *, struct cfdata *, void *);
  67 void    mainbus_attach(struct device *, struct device *, void *);
  68
  69 CFATTACH_DECL(mainbus, sizeof(struct device),
  70     mainbus_match, mainbus_attach, NULL, NULL);
  71
  72 int     mainbus_print(void *, const char *);
  73 int     mainbus_submatch(struct device *, struct cfdata *,
  74                          const int *, void *);
  75
  76 /* There can be only one. */
  77 int     mainbus_found;
  78
  79 struct mainbusdev {
  80         const char *md_name;
  81         bus_addr_t md_addr;
  82         int md_irq;
  83 };
  84
  85 #if defined(ALGOR_P4032)
  86 #include <algor/algor/algor_p4032reg.h>
  87 #include <algor/algor/algor_p4032var.h>
  88
  89 struct mainbusdev mainbusdevs[] = {
  90         { "cpu",                -1,                     -1 },
  91         { "mcclock",            P4032_RTC,              P4032_IRQ_RTC },
  92         { "com",                P4032_COM1,             P4032_IRQ_COM1 },
  93         { "com",                P4032_COM2,             P4032_IRQ_COM2 },
  94         { "lpt",                P4032_LPT,              P4032_IRQ_LPT },
  95         { "pckbc",              P4032_PCKBC,            P4032_IRQ_PCKBC },
  96         { "fdc",                P4032_FDC,              P4032_IRQ_FLOPPY },
  97         { "vtpbc",              P4032_V962PBC,          -1 },
  98
  99         { NULL,                 0,                      0 },
 100 };
 101 #endif /* ALGOR_P4032 */
 102
 103 #if defined(ALGOR_P5064)
 104 #include <algor/algor/algor_p5064reg.h>
 105 #include <algor/algor/algor_p5064var.h>
 106
 107 struct mainbusdev mainbusdevs[] = {
 108         { "cpu",                -1,                     -1 },
 109         { "vtpbc",              P5064_V360EPC,          -1 },
 110
 111         { NULL,                 0,                      0 },
 112 };
 113 #endif /* ALGOR_P5064 */
 114
 115 #if defined(ALGOR_P6032)
 116 #include <algor/algor/algor_p6032reg.h>
 117 #include <algor/algor/algor_p6032var.h>
 118
 119 struct mainbusdev mainbusdevs[] = {
 120         { "cpu",                -1,                     -1 },
 121         { "bonito",             BONITO_REG_BASE,        -1 },
 122
 123         { NULL,                 0,                      0 },
 124 };
 125 #endif /* ALGOR_P6032 */
 126
 127 int
 128 mainbus_match(struct device *parent, struct cfdata *cf, void *aux)
 129 {
 130
 131         if (mainbus_found)
 132                 return (0);
 133
 134         return (1);
 135 }
 136
 137 void
 138 mainbus_attach(struct device *parent, struct device *self, void *aux)
 139 {
 140         struct mainbus_attach_args ma;
 141         struct mainbusdev *md;
 142         bus_space_tag_t st;
 143 #if defined(PCI_NETBSD_CONFIGURE)
 144         struct extent *ioext, *memext;
 145         pci_chipset_tag_t pc;
 146 #if defined(PCI_NETBSD_ENABLE_IDE)
 147         pcitag_t idetag;
 148         pcireg_t idetim;
 149 #endif
 150 #endif
 151
 152         mainbus_found = 1;
 153
 154         printf("\n");
 155
 156 #if NPCI > 0 && defined(PCI_NETBSD_CONFIGURE)
 157 #if defined(ALGOR_P4032)
 158         /*
 159          * Reserve the bottom 64K of the I/O space for ISA devices.
 160          */
 161         ioext  = extent_create("pciio",  0x00010000, 0x000effff,
 162             M_DEVBUF, NULL, 0, EX_NOWAIT);
 163         memext = extent_create("pcimem", 0x01000000, 0x07ffffff,
 164             M_DEVBUF, NULL, 0, EX_NOWAIT);
 165
 166         pc = &p4032_configuration.ac_pc;
 167 #elif defined(ALGOR_P5064)
 168         /*
 169          * Reserve the bottom 512K of the I/O space for ISA devices.
 170          * According to the PMON sources, this is a work-around for
 171          * a bug in the ISA bridge.
 172          */
 173         ioext  = extent_create("pciio",  0x00080000, 0x00ffffff,
 174             M_DEVBUF, NULL, 0, EX_NOWAIT);
 175         memext = extent_create("pcimem", 0x01000000, 0x07ffffff,
 176             M_DEVBUF, NULL, 0, EX_NOWAIT);
 177
 178         pc = &p5064_configuration.ac_pc;
 179 #if defined(PCI_NETBSD_ENABLE_IDE)
 180         idetag = pci_make_tag(pc, 0, 2, 1);
 181 #endif
 182 #elif defined(ALGOR_P6032)
 183         /*
 184          * Reserve the bottom 64K of the I/O space for ISA devices.
 185          */
 186         ioext  = extent_create("pciio",  0x00010000, 0x000effff,
 187             M_DEVBUF, NULL, 0, EX_NOWAIT);
 188         memext = extent_create("pcimem", 0x01000000, 0x0affffff,
 189             M_DEVBUF, NULL, 0, EX_NOWAIT);
 190
 191         pc = &p6032_configuration.ac_pc;
 192 #if defined(PCI_NETBSD_ENABLE_IDE)
 193         idetag = pci_make_tag(pc, 0, 17, 1);
 194 #endif
 195 #endif /* ALGOR_P4032 || ALGOR_P5064 || ALGOR_P6032 */
 196
 197         pci_configure_bus(pc, ioext, memext, NULL, 0, mips_dcache_align);
 198         extent_destroy(ioext);
 199         extent_destroy(memext);
 200
 201 #if defined(PCI_NETBSD_ENABLE_IDE)
 202         /*
 203          * Perhaps PMON has not enabled the IDE controller.  Easy to
 204          * fix -- just set the ENABLE bits for each channel in the
 205          * IDETIM register.  Just clear all the bits for the channel
 206          * except for the ENABLE bits -- the `pciide' driver will
 207          * properly configure it later.
 208          */
 209         idetim = 0;
 210         if (PCI_NETBSD_ENABLE_IDE & 0x01)
 211                 idetim = PIIX_IDETIM_SET(idetim, PIIX_IDETIM_IDE, 0);
 212         if (PCI_NETBSD_ENABLE_IDE & 0x02)
 213                 idetim = PIIX_IDETIM_SET(idetim, PIIX_IDETIM_IDE, 1);
 214         pci_conf_write(pc, idetag, PIIX_IDETIM, idetim);
 215 #endif
 216 #endif /* NPCI > 0 && defined(PCI_NETBSD_CONFIGURE) */
 217
 218 #if defined(ALGOR_P4032)
 219         st = &p4032_configuration.ac_lociot;
 220 #elif defined(ALGOR_P5064)
 221         st = NULL;
 222 #elif defined(ALGOR_P6032)
 223         st = NULL;
 224 #endif
 225
 226         for (md = mainbusdevs; md->md_name != NULL; md++) {
 227                 ma.ma_name = md->md_name;
 228                 ma.ma_st = st;
 229                 ma.ma_addr = md->md_addr;
 230                 ma.ma_irq = md->md_irq;
 231                 (void) config_found_sm_loc(self, "mainbus", NULL, &ma,
 232                     mainbus_print, mainbus_submatch);
 233         }
 234 }
 235
 236 int
 237 mainbus_print(void *aux, const char *pnp)
 238 {
 239         struct mainbus_attach_args *ma = aux;
 240
 241         if (pnp)
 242                 aprint_normal("%s at %s", ma->ma_name, pnp);
 243         if (ma->ma_addr != (bus_addr_t) -1)
 244                 aprint_normal(" addr 0x%lx", ma->ma_addr);
 245
 246         return (UNCONF);
 247 }
 248
 249 int
 250 mainbus_submatch(struct device *parent, struct cfdata *cf,
 251                  const int *ldesc, void *aux)
 252 {
 253         struct mainbus_attach_args *ma = aux;
 254
 255         if (cf->cf_loc[MAINBUSCF_ADDR] != MAINBUSCF_ADDR_DEFAULT &&
 256             cf->cf_loc[MAINBUSCF_ADDR] != ma->ma_addr)
 257                 return (0);
 258
 259         return (config_match(parent, cf, aux));
 260 }