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      1 /*	$NetBSD: if_sm_pxaip.c,v 1.6 2012/10/27 17:17:50 chs 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 1.6 2012/10/27 17:17:50 chs 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 <sys/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(device_t, cfdata_t, void *);
     57 static void	sm_pxaip_attach(device_t, device_t, void *);
     58 
     59 struct sm_pxaip_softc {
     60 	struct smc91cxx_softc sc_sm;
     61 	void *ih;
     62 };
     63 
     64 CFATTACH_DECL_NEW(sm_pxaip, sizeof(struct sm_pxaip_softc), sm_pxaip_match,
     65     sm_pxaip_attach, NULL, NULL);
     66 
     67 static int
     68 sm_pxaip_match(device_t parent, cfdata_t 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(device_t parent, device_t self, void *aux)
     79 {
     80 	struct sm_pxaip_softc *pxasc = device_private(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_dev = self;
    105 	sc->sc_bst = bst;
    106 	sc->sc_bsh = bsh;
    107 
    108 	sc->sc_flags = SMC_FLAGS_ENABLED;
    109 	smc91cxx_attach(sc, NULL);
    110 }
    111