sys/arch/mips/adm5120/adm5120_obio.c

   1 /* $NetBSD$ */
   2
   3 /*-
   4  * Copyright (c) 2007 Ruslan Ermilov and Vsevolod Lobko.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or
   8  * without modification, are permitted provided that the following
   9  * conditions are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above
  13  *    copyright notice, this list of conditions and the following
  14  *    disclaimer in the documentation and/or other materials provided
  15  *    with the distribution.
  16  * 3. The names of the authors may not be used to endorse or promote
  17  *    products derived from this software without specific prior
  18  *    written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY
  21  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  22  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
  23  * PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS
  24  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
  25  * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  26  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
  27  * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
  29  * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  30  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
  31  * OF SUCH DAMAGE.
  32  */
  33 /*
  34  * Copyright 2002 Wasabi Systems, Inc.
  35  * All rights reserved.
  36  *
  37  * Written by Simon Burge for Wasabi Systems, Inc.
  38  *
  39  * Redistribution and use in source and binary forms, with or without
  40  * modification, are permitted provided that the following conditions
  41  * are met:
  42  * 1. Redistributions of source code must retain the above copyright
  43  *    notice, this list of conditions and the following disclaimer.
  44  * 2. Redistributions in binary form must reproduce the above copyright
  45  *    notice, this list of conditions and the following disclaimer in the
  46  *    documentation and/or other materials provided with the distribution.
  47  * 3. All advertising materials mentioning features or use of this software
  48  *    must display the following acknowledgement:
  49  *      This product includes software developed for the NetBSD Project by
  50  *      Wasabi Systems, Inc.
  51  * 4. The name of Wasabi Systems, Inc. may not be used to endorse
  52  *    or promote products derived from this software without specific prior
  53  *    written permission.
  54  *
  55  * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
  56  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  57  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  58  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
  59  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  60  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  61  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  62  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  63  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  64  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  65  * POSSIBILITY OF SUCH DAMAGE.
  66  */
  67
  68 #include <sys/cdefs.h>
  69 __KERNEL_RCSID(0, "$NetBSD: pb1000_obio.c,v 1.8 2005/08/26 13:19:35 drochner Exp $");
  70
  71 #include <sys/param.h>
  72 #include <sys/systm.h>
  73 #include <sys/device.h>
  74
  75 #include <machine/bus.h>
  76
  77 #include <mips/cache.h>
  78 #include <mips/cpuregs.h>
  79
  80 #include <mips/adm5120/include/adm5120reg.h>
  81 #include <mips/adm5120/include/adm5120var.h>
  82 #include <mips/adm5120/include/adm5120_mainbusvar.h>
  83 #include <mips/adm5120/include/adm5120_obiovar.h>
  84
  85 #include "locators.h"
  86
  87 #ifdef OBIO_DEBUG
  88 int obio_debug = 1;
  89 #define OBIO_DPRINTF(__fmt, ...)                \
  90 do {                                            \
  91         if (obio_debug)                 \
  92                 printf((__fmt), __VA_ARGS__);   \
  93 } while (/*CONSTCOND*/0)
  94 #else /* !OBIO_DEBUG */
  95 #define OBIO_DPRINTF(__fmt, ...)        do { } while (/*CONSTCOND*/0)
  96 #endif /* OBIO_DEBUG */
  97
  98 static int      obio_match(struct device *, struct cfdata *, void *);
  99 static void     obio_attach(struct device *, struct device *, void *);
 100 static int      obio_submatch(struct device *, struct cfdata *,
 101                               const int *, void *);
 102 static int      obio_print(void *, const char *);
 103
 104 CFATTACH_DECL(obio, sizeof(struct device), obio_match, obio_attach, NULL, NULL);
 105
 106 /* There can be only one. */
 107 int     obio_found;
 108
 109 struct obiodev {
 110         const char      *od_name;
 111         bus_addr_t      od_addr;
 112         int             od_irq;
 113         uint32_t        od_gpio_mask;
 114 };
 115
 116 struct obiodev obiodevs[] = {
 117         {"uart",        ADM5120_BASE_UART0,     1, 0x0},
 118         {"uart",        ADM5120_BASE_UART1,     2, 0x0},
 119         {"admsw",       ADM5120_BASE_SWITCH,    9, 0x0},
 120         {"ahci",        ADM5120_BASE_USB,       3, 0x0},
 121         {"admflash",    ADM5120_BASE_SRAM0,     0, 0x0},
 122         {NULL,          0,                      0, 0x0},
 123 };
 124
 125 static int
 126 obio_match(struct device *parent, struct cfdata *match, void *aux)
 127 {
 128         return !obio_found;
 129 }
 130
 131 static void
 132 obio_attach_args_create(struct obio_attach_args *oa, struct obiodev *od,
 133     void *gpio, bus_dma_tag_t dmat, bus_space_tag_t st)
 134 {
 135         oa->oba_name = od->od_name;
 136         oa->oba_addr = od->od_addr;
 137         oa->oba_irq = od->od_irq;
 138         oa->oba_dt = dmat;
 139         oa->oba_st = st;
 140         oa->oba_gpio = gpio;
 141         oa->oba_gpio_mask = od->od_gpio_mask;
 142 }
 143
 144 static void
 145 obio_attach(struct device *parent, struct device *self, void *aux)
 146 {
 147         struct mainbus_attach_args *ma = (struct mainbus_attach_args *)aux;
 148         struct obio_attach_args oa;
 149         struct obiodev *od;
 150
 151         obio_found = 1;
 152         printf("\n");
 153
 154         OBIO_DPRINTF("%s: %d\n", __func__, __LINE__);
 155
 156         OBIO_DPRINTF("%s: %d\n", __func__, __LINE__);
 157         for (od = obiodevs; od->od_name != NULL; od++) {
 158                 OBIO_DPRINTF("%s: %d\n", __func__, __LINE__);
 159                 obio_attach_args_create(&oa, od, ma->ma_gpio, ma->ma_dmat,
 160                     ma->ma_obiot);
 161                 OBIO_DPRINTF("%s: %d\n", __func__, __LINE__);
 162                 (void)config_found_sm_loc(self, "obio", NULL, &oa, obio_print,
 163                     obio_submatch);
 164         }
 165         OBIO_DPRINTF("%s: %d\n", __func__, __LINE__);
 166 }
 167
 168 static int
 169 obio_submatch(struct device *parent, struct cfdata *cf,
 170               const int *ldesc, void *aux)
 171 {
 172         struct obio_attach_args *oa = aux;
 173
 174         if (cf->cf_loc[OBIOCF_ADDR] != OBIOCF_ADDR_DEFAULT &&
 175             cf->cf_loc[OBIOCF_ADDR] != oa->oba_addr)
 176                 return 0;
 177
 178         return config_match(parent, cf, aux);
 179 }
 180
 181 static int
 182 obio_print(void *aux, const char *pnp)
 183 {
 184         struct obio_attach_args *oa = aux;
 185
 186         if (pnp != NULL)
 187                 aprint_normal("%s at %s", oa->oba_name, pnp);
 188         if (oa->oba_addr != OBIOCF_ADDR_DEFAULT)
 189                 aprint_normal(" addr 0x%lx", oa->oba_addr);
 190         if (oa->oba_gpio_mask != OBIOCF_GPIO_MASK_DEFAULT)
 191                 aprint_normal(" gpio_mask 0x%02x", oa->oba_gpio_mask);
 192
 193         return UNCONF;
 194 }