sys/arch/evbarm/viper/if_sm_pxaip.c

   1 /*      $NetBSD: if_sm_pxaip.c,v 1.2.38.1 2007/10/03 19:23:13 garbled Exp $     */
   2
   3 /*
   4  * Copyright (c) 2005 Antti Kantee.  All Rights Reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  * 3. The name of the company nor the name of the author may be used to
  15  *    endorse or promote products derived from this software without specific
  16  *    prior written permission.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
  19  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  20  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  21  * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  24  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  28  * SUCH DAMAGE.
  29  */
  30
  31 #include <sys/cdefs.h>
  32 __KERNEL_RCSID(0, "$NetBSD: if_sm_pxaip.c,v 1.2.38.1 2007/10/03 19:23:13 garbled Exp $");
  33
  34 #include <sys/param.h>
  35 #include <sys/systm.h>
  36 #include <sys/device.h>
  37
  38 #include <net/if.h>
  39 #include <net/if_ether.h>
  40 #include <net/if_media.h>
  41
  42 #include <machine/intr.h>
  43 #include <machine/bus.h>
  44
  45 #include <dev/mii/mii.h>
  46 #include <dev/mii/miivar.h>
  47
  48 #include <dev/ic/smc91cxxreg.h>
  49 #include <dev/ic/smc91cxxvar.h>
  50
  51 #include <arch/arm/xscale/pxa2x0var.h>
  52 #include <arch/arm/xscale/pxa2x0_gpio.h>
  53
  54 #include <arch/evbarm/viper/viper_reg.h>
  55
  56 static int      sm_pxaip_match(struct device *, struct cfdata *, void *);
  57 static void     sm_pxaip_attach(struct device *, struct device *, void *);
  58
  59 struct sm_pxaip_softc {
  60         struct smc91cxx_softc sc_sm;
  61         void *ih;
  62 };
  63
  64 CFATTACH_DECL(sm_pxaip, sizeof(struct sm_pxaip_softc), sm_pxaip_match,
  65     sm_pxaip_attach, NULL, NULL);
  66
  67 static int
  68 sm_pxaip_match(struct device *parent, struct cfdata *match, void *aux)
  69 {
  70         struct pxaip_attach_args *paa = aux;
  71
  72         if (paa->pxa_addr == VIPER_SMSC_PBASE)
  73                 return 1;
  74         return 0;
  75 }
  76
  77 static void
  78 sm_pxaip_attach(struct device *parent, struct device *self, void *aux)
  79 {
  80         struct sm_pxaip_softc *pxasc = (struct sm_pxaip_softc *)self;
  81         struct smc91cxx_softc *sc = &pxasc->sc_sm;
  82         struct pxaip_attach_args *paa = aux;
  83         bus_space_tag_t bst = &pxa2x0_bs_tag;
  84         bus_space_handle_t bsh;
  85
  86         /* map i/o space */
  87         if (bus_space_map(bst, paa->pxa_addr, SMC_IOSIZE, 0, &bsh) != 0) {
  88                 aprint_error(": sm_pxaip_attach: can't map i/o space");
  89                 return;
  90         }
  91
  92         /* register the interrupt handler */
  93         pxasc->ih = pxa2x0_gpio_intr_establish(paa->pxa_intr, IST_EDGE_RISING,
  94             IPL_NET, smc91cxx_intr, sc);
  95         if (pxasc->ih == NULL) {
  96                 aprint_error(": couldn't establish interrupt\n");
  97                 bus_space_unmap(bst, bsh, SMC_IOSIZE);
  98                 return;
  99         }
 100
 101         printf("\n");
 102
 103         /* fill in master sc */
 104         sc->sc_bst = bst;
 105         sc->sc_bsh = bsh;
 106
 107         sc->sc_flags = SMC_FLAGS_ENABLED;
 108         smc91cxx_attach(sc, NULL);
 109 }