sys/arch/evbmips/alchemy/obio.c

   1 /* $NetBSD: obio.c,v 1.1 2006/02/08 09:04:01 gdamore 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: obio.c,v 1.1 2006/02/08 09:04:01 gdamore Exp $");
  40
  41 #include <sys/param.h>
  42 #include <sys/systm.h>
  43 #include <sys/device.h>
  44
  45 #include <machine/bus.h>
  46
  47 #include <mips/cache.h>
  48 #include <mips/cpuregs.h>
  49
  50 #include <evbmips/alchemy/board.h>
  51 #include <evbmips/alchemy/obiovar.h>
  52
  53 #include "locators.h"
  54
  55 static int      obio_match(struct device *, struct cfdata *, void *);
  56 static void     obio_attach(struct device *, struct device *, void *);
  57 static int      obio_submatch(struct device *, struct cfdata *,
  58                               const int *, void *);
  59 static int      obio_print(void *, const char *);
  60
  61 CFATTACH_DECL(obio, sizeof(struct device),
  62     obio_match, obio_attach, NULL, NULL);
  63
  64 /* There can be only one. */
  65 static int      obio_found = 0;
  66
  67 static int
  68 obio_match(struct device *parent, struct cfdata *match, void *aux)
  69 {
  70
  71         if (obio_found)
  72                 return (0);
  73
  74         return (1);
  75 }
  76
  77 static void
  78 obio_attach(struct device *parent, struct device *self, void *aux)
  79 {
  80         struct obio_attach_args oa;
  81         const struct obiodev *od;
  82         const struct alchemy_board *board;
  83
  84         obio_found = 1;
  85         printf("\n");
  86
  87         board = board_info();
  88         for (od = board->ab_devices; od->od_name != NULL; od++) {
  89                 oa.oba_name = od->od_name;
  90                 oa.oba_addr = od->od_addr;
  91                 oa.oba_irq = od->od_irq;
  92                 (void) config_found_sm_loc(self, "obio", NULL, &oa, obio_print,
  93                     obio_submatch);
  94         }
  95 }
  96
  97 static int
  98 obio_submatch(struct device *parent, struct cfdata *cf,
  99               const int *ldesc, void *aux)
 100 {
 101         struct obio_attach_args *oa = aux;
 102
 103         if (cf->cf_loc[OBIOCF_ADDR] != OBIOCF_ADDR_DEFAULT &&
 104             cf->cf_loc[OBIOCF_ADDR] != oa->oba_addr)
 105                 return (0);
 106
 107         return (config_match(parent, cf, aux));
 108 }
 109
 110 static int
 111 obio_print(void *aux, const char *pnp)
 112 {
 113         struct obio_attach_args *oa = aux;
 114
 115         if (pnp)
 116                 aprint_normal("%s at %s", oa->oba_name, pnp);
 117         if (oa->oba_addr != OBIOCF_ADDR_DEFAULT)
 118                 aprint_normal(" addr 0x%" PRIxBUSADDR, oa->oba_addr);
 119
 120         return (UNCONF);
 121 }