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
wb_ebus_match(device_t parent,cfdata_t match,void * aux)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
wb_ebus_attach(device_t parent,device_t self,void * aux)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