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      1 /*	$NetBSD: wb_ebus.c,v 1.1 2020/05/11 15:56:15 jdc Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 2020 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Julian Coleman.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/cdefs.h>
     33 __RCSID("$NetBSD: wb_ebus.c,v 1.1 2020/05/11 15:56:15 jdc Exp $");
     34 
     35 #include <sys/types.h>
     36 #include <sys/param.h>
     37 #include <sys/systm.h>
     38 #include <sys/device.h>
     39 
     40 #include <machine/autoconf.h>
     41 
     42 #include <dev/ebus/ebusreg.h>
     43 #include <dev/ebus/ebusvar.h>
     44 
     45 #include <dev/ic/w83l518dreg.h>
     46 #include <dev/ic/w83l518dvar.h>
     47 #include <dev/ic/w83l518d_sdmmc.h>
     48 
     49 static int	wb_ebus_match(device_t, cfdata_t , void *);
     50 static void	wb_ebus_attach(device_t, device_t, void *);
     51 
     52 CFATTACH_DECL_NEW(wb_ebus, sizeof(struct wb_softc),
     53 	wb_ebus_match, wb_ebus_attach, NULL, NULL);
     54 
     55 static int
     56 wb_ebus_match(device_t parent, cfdata_t match, void *aux)
     57 {
     58 	struct ebus_attach_args *ea = aux;
     59 
     60 	return (strcmp(ea->ea_name, "TAD,wb-sdcard") == 0);
     61 }
     62 
     63 static void
     64 wb_ebus_attach(device_t parent, device_t self, void *aux)
     65 {
     66 	struct wb_softc *sc = device_private(self);
     67 	struct ebus_attach_args *ea = aux;
     68 
     69 	sc->wb_dev = self;
     70 
     71 	if (bus_space_map(ea->ea_bustag, EBUS_ADDR_FROM_REG(&ea->ea_reg[0]),
     72 	    ea->ea_reg[0].size, 0, &sc->wb_ioh) == 0)
     73 		sc->wb_iot = ea->ea_bustag;
     74 	else {
     75 		aprint_error(": can't map register space\n");
     76                 return;
     77 	}
     78 
     79 	bus_intr_establish(sc->wb_iot, ea->ea_intr[0], IPL_BIO, wb_intr, sc);
     80 
     81 	aprint_normal("\n");
     82 
     83 	sc->wb_type = WB_DEVNO_SD;
     84 	sc->wb_quirks = WB_QUIRK_1BIT;	/* 4bit bus width always fails */
     85 	wb_attach(sc);
     86 }
     87