sys/arch/evbarm/osk5912/if_sm_emifs.c

   1 /*      $NetBSD: if_sm_emifs.c,v 1.1.20.1 2007/10/03 19:23:12 garbled Exp $     */
   2
   3 /*
   4  * OSK5912 SMC91Cxx wrapper, based on sys/arch/evbarm/viper/if_sm_pxaip.c
   5  *
   6  * Copyright (c) 2005 Antti Kantee.  All Rights Reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. The name of the company nor the name of the author may be used to
  17  *    endorse or promote products derived from this software without specific
  18  *    prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
  21  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  22  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  23  * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  26  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  */
  32
  33 #include <sys/cdefs.h>
  34 __KERNEL_RCSID(0, "$NetBSD: if_sm_emifs.c,v 1.1.20.1 2007/10/03 19:23:12 garbled Exp $");
  35
  36 #include <sys/param.h>
  37 #include <sys/systm.h>
  38 #include <sys/device.h>
  39
  40 #include <net/if.h>
  41 #include <net/if_ether.h>
  42 #include <net/if_media.h>
  43
  44 #include <machine/intr.h>
  45 #include <machine/bus.h>
  46
  47 #include <dev/mii/mii.h>
  48 #include <dev/mii/miivar.h>
  49
  50 #include <dev/ic/smc91cxxreg.h>
  51 #include <dev/ic/smc91cxxvar.h>
  52
  53 #include <arch/arm/omap/omap_emifs.h>
  54 #include <arch/arm/omap/omap_gpio.h>
  55
  56 static int      sm_emifs_match(struct device *, struct cfdata *, void *);
  57 static void     sm_emifs_attach(struct device *, struct device *, void *);
  58
  59 struct sm_emifs_softc {
  60         struct smc91cxx_softc sc_sm;
  61         void *ih;
  62 };
  63
  64 CFATTACH_DECL(sm_emifs, sizeof(struct sm_emifs_softc), sm_emifs_match,
  65     sm_emifs_attach, NULL, NULL);
  66
  67 static int
  68 sm_emifs_match(struct device *parent, struct cfdata *match, void *aux)
  69 {
  70         struct emifs_attach_args *emifs = aux;
  71
  72         if (emifs->emifs_addr == -1)
  73                 panic("sm must have addr specified in config.");
  74
  75         /* Trust the config file. */
  76         return (1);
  77 }
  78
  79 static void
  80 sm_emifs_attach(struct device *parent, struct device *self, void *aux)
  81 {
  82         struct sm_emifs_softc *emifssc = (struct sm_emifs_softc *)self;
  83         struct smc91cxx_softc *sc = &emifssc->sc_sm;
  84         struct emifs_attach_args *emifs = aux;
  85         bus_space_tag_t bst;
  86         bus_space_handle_t bsh;
  87
  88         bst = emifs->emifs_iot;
  89
  90         /* map i/o space */
  91         if (bus_space_map(bst, emifs->emifs_addr, SMC_IOSIZE, 0, &bsh) != 0) {
  92                 aprint_error(": sm_emifs_attach: can't map i/o space");
  93                 return;
  94         }
  95
  96         aprint_normal("\n");
  97
  98         /* fill in master sc */
  99         sc->sc_bst = bst;
 100         sc->sc_bsh = bsh;
 101
 102         /* register the interrupt handler */
 103         emifssc->ih =
 104             omap_gpio_intr_establish(emifs->emifs_intr, IST_EDGE_RISING,
 105                                      IPL_NET, sc->sc_dev.dv_xname,
 106                                      smc91cxx_intr, sc);
 107
 108         if (emifssc->ih == NULL) {
 109                 aprint_error(": couldn't establish interrupt\n");
 110                 bus_space_unmap(bst, bsh, SMC_IOSIZE);
 111                 return;
 112         }
 113
 114         /* Perform generic attach. */
 115         sc->sc_flags |= SMC_FLAGS_ENABLED;
 116         smc91cxx_attach(sc, NULL);
 117 }
 118