sys/arch/evbmips/malta/dev/mainbus.c

   1 /*      $NetBSD: mainbus.c,v 1.10 2005/12/11 12:17:11 christos Exp $    */
   2
   3 /*
   4  * Copyright 2002 Wasabi Systems, Inc.
   5  * All rights reserved.
   6  *
   7  * Written by Simon Burge for Wasabi Systems, Inc.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  * 3. All advertising materials mentioning features or use of this software
  18  *    must display the following acknowledgement:
  19  *      This product includes software developed for the NetBSD Project by
  20  *      Wasabi Systems, Inc.
  21  * 4. The name of Wasabi Systems, Inc. may not be used to endorse
  22  *    or promote products derived from this software without specific prior
  23  *    written permission.
  24  *
  25  * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
  26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  27  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  28  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
  29  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  30  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  31  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  32  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  33  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  34  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  35  * POSSIBILITY OF SUCH DAMAGE.
  36  */
  37
  38 #include <sys/cdefs.h>
  39 __KERNEL_RCSID(0, "$NetBSD: mainbus.c,v 1.10 2005/12/11 12:17:11 christos Exp $");
  40
  41 #include "opt_pci.h"
  42
  43 #include <sys/param.h>
  44 #include <sys/systm.h>
  45 #include <sys/device.h>
  46 #if defined(PCI_NETBSD_CONFIGURE)
  47 #include <sys/extent.h>
  48 #include <sys/malloc.h>
  49 #endif
  50
  51 #include <dev/pci/pcivar.h>
  52 #if defined(PCI_NETBSD_CONFIGURE)
  53 #include <dev/pci/pciconf.h>
  54 #endif
  55
  56 #include <mips/cache.h>
  57 #include <mips/cpuregs.h>
  58
  59 #include <evbmips/malta/autoconf.h>
  60 #include <evbmips/malta/maltareg.h>
  61 #include <evbmips/malta/maltavar.h>
  62
  63 #if defined(PCI_NETBSD_ENABLE_IDE)
  64 #include <dev/pci/pciide_piix_reg.h>
  65 #endif /* PCI_NETBSD_ENABLE_IDE */
  66
  67 #include "locators.h"
  68 #include "pci.h"
  69
  70 static int      mainbus_match(struct device *, struct cfdata *, void *);
  71 static void     mainbus_attach(struct device *, struct device *, void *);
  72 static int      mainbus_submatch(struct device *, struct cfdata *,
  73                                  const int *, void *);
  74 static int      mainbus_print(void *, const char *);
  75
  76 CFATTACH_DECL(mainbus, sizeof(struct device),
  77     mainbus_match, mainbus_attach, NULL, NULL);
  78
  79 /* There can be only one. */
  80 int     mainbus_found;
  81
  82 struct mainbusdev {
  83         const char *md_name;
  84         bus_addr_t md_addr;
  85         int md_intr;
  86 };
  87
  88 struct mainbusdev mainbusdevs[] = {
  89         { "cpu",                -1,                     -1 },
  90         { "gt",                 MALTA_CORECTRL_BASE,    -1 },
  91         { "com",                MALTA_CBUSUART,         MALTA_CBUSUART_INTR },
  92         { "i2c",                MALTA_I2C_BASE,         -1 },
  93         { "gpio",               MALTA_GPIO_BASE,        -1 },
  94         { NULL,                 0,                      0 },
  95 };
  96
  97 static int
  98 mainbus_match(struct device *parent, struct cfdata *match, void *aux)
  99 {
 100
 101         if (mainbus_found)
 102                 return (0);
 103
 104         return (1);
 105 }
 106
 107 static void
 108 mainbus_attach(struct device *parent, struct device *self, void *aux)
 109 {
 110         struct mainbus_attach_args ma;
 111         struct mainbusdev *md;
 112 #if defined(PCI_NETBSD_CONFIGURE)
 113         struct extent *ioext, *memext;
 114 #endif
 115 #if defined(PCI_NETBSD_ENABLE_IDE)
 116         struct malta_config *mcp = &malta_configuration;
 117         pci_chipset_tag_t pc = &mcp->mc_pc;
 118         pcitag_t idetag;
 119         pcireg_t idetim;
 120 #endif
 121
 122         mainbus_found = 1;
 123         printf("\n");
 124
 125 #if defined(PCI_NETBSD_CONFIGURE)
 126         ioext = extent_create("pciio",  0x00001000, 0x0000efff,
 127             M_DEVBUF, NULL, 0, EX_NOWAIT);
 128         memext = extent_create("pcimem", MALTA_PCIMEM1_BASE,
 129             MALTA_PCIMEM1_BASE + MALTA_PCIMEM1_SIZE,
 130             M_DEVBUF, NULL, 0, EX_NOWAIT);
 131
 132         pci_configure_bus(pc, ioext, memext, NULL, 0, mips_dcache_align);
 133         extent_destroy(ioext);
 134         extent_destroy(memext);
 135 #endif /* PCI_NETBSD_CONFIGURE */
 136
 137 #if defined(PCI_NETBSD_ENABLE_IDE)
 138         /*
 139          * Perhaps PMON has not enabled the IDE controller.  Easy to
 140          * fix -- just set the ENABLE bits for each channel in the
 141          * IDETIM register.  Just clear all the bits for the channel
 142          * except for the ENABLE bits -- the `pciide' driver will
 143          * properly configure it later.
 144          */
 145         idetim = 0;
 146         if (PCI_NETBSD_ENABLE_IDE & 0x01)
 147                 idetim = PIIX_IDETIM_SET(idetim, PIIX_IDETIM_IDE, 0);
 148         if (PCI_NETBSD_ENABLE_IDE & 0x02)
 149                 idetim = PIIX_IDETIM_SET(idetim, PIIX_IDETIM_IDE, 1);
 150
 151         /* pciide0 is pci device 10, function 1 */
 152         idetag = pci_make_tag(pc, 0, 10, 1);
 153         pci_conf_write(pc, idetag, PIIX_IDETIM, idetim);
 154 #endif
 155         for (md = mainbusdevs; md->md_name != NULL; md++) {
 156                 ma.ma_name = md->md_name;
 157                 ma.ma_addr = md->md_addr;
 158                 ma.ma_intr = md->md_intr;
 159                 (void) config_found_sm_loc(self, "mainbus", NULL, &ma,
 160                     mainbus_print, mainbus_submatch);
 161         }
 162 }
 163
 164 static int
 165 mainbus_submatch(struct device *parent, struct cfdata *cf,
 166                  const int *ldesc, void *aux)
 167 {
 168         struct mainbus_attach_args *ma = aux;
 169
 170         if (cf->cf_loc[MAINBUSCF_ADDR] != MAINBUSCF_ADDR_DEFAULT &&
 171             cf->cf_loc[MAINBUSCF_ADDR] != ma->ma_addr)
 172                 return (0);
 173
 174         return (config_match(parent, cf, aux));
 175 }
 176
 177 static int
 178 mainbus_print(void *aux, const char *pnp)
 179 {
 180         struct mainbus_attach_args *ma = aux;
 181
 182         if (pnp != 0)
 183                 return QUIET;
 184
 185         if (pnp)
 186                 aprint_normal("%s at %s", ma->ma_name, pnp);
 187         if (ma->ma_addr != MAINBUSCF_ADDR_DEFAULT)
 188                 aprint_normal(" addr 0x%lx", ma->ma_addr);
 189
 190         return (UNCONF);
 191 }