1 /*-
2 * Copyright (c) 2012 The NetBSD Foundation, Inc.
3 * All rights reserved.
4 *
5 * This code is derived from software contributed to The NetBSD Foundation
6 * by Paul Fleischer <paul@xpg.dk>
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 *
17 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
18 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
19 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
20 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
21 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
27 * POSSIBILITY OF SUCH DAMAGE.
28 */
29 #include <sys/cdefs.h>
30
31 #include <sys/param.h>
32 #include <sys/systm.h>
33 #include <sys/socket.h>
34 #include <sys/device.h>
35 #include <sys/time.h>
36
37 #include <net/if.h>
38 #include <net/if_ether.h>
39 #include <net/if_media.h>
40
41 #include <sys/bus.h>
42 #include <machine/intr.h>
43
44 #include <arch/arm/s3c2xx0/s3c2440reg.h>
45 #include <arch/arm/s3c2xx0/s3c2440var.h>
46
47 #include <arch/arm/s3c2xx0/s3c2440_dma.h>
48
49 #include <dev/ic/dm9000var.h>
50 #include <dev/ic/dm9000reg.h>
51
52 #include "opt_mini2440.h"
53
54 int dme_ssextio_match(device_t, cfdata_t, void *);
55 void dme_ssextio_attach(device_t, device_t, void *);
56
57 CFATTACH_DECL_NEW(dme_ssextio, sizeof(struct dme_softc),
58 dme_ssextio_match, dme_ssextio_attach, NULL, NULL);
59
60 int
dme_ssextio_match(device_t parent,cfdata_t cf,void * aux)61 dme_ssextio_match(device_t parent, cfdata_t cf, void *aux)
62 {
63 struct s3c2xx0_attach_args *sa = aux;
64 bus_space_tag_t iot = sa->sa_iot;
65 bus_space_handle_t ioh;
66 vaddr_t ioaddr;
67 struct dme_softc sc; /* Used to temporarily access the device for
68 probing */
69 int have_io = 0;
70 int result = 0;
71 uint8_t vendorId[2];
72 uint8_t productId[2];
73
74 /* Map memory to access the device during probing */
75 ioaddr = sa->sa_addr;
76 if (bus_space_map(iot, ioaddr, DM9000_IOSIZE, 0, &ioh))
77 goto out;
78 have_io = 1;
79
80 /* Zero the device description */
81 memset(&sc, 0, sizeof sc);
82 sc.sc_iot = iot;
83 sc.sc_ioh = ioh;
84 sc.dme_io = 0x0;
85 sc.dme_data = 0x4;
86
87 vendorId[0] = dme_read(&sc, DM9000_VID0);
88 vendorId[1] = dme_read(&sc, DM9000_VID1);
89
90 productId[0] = dme_read(&sc, DM9000_PID0);
91 productId[1] = dme_read(&sc, DM9000_PID1);
92
93 if (vendorId[0] == 0x46 && vendorId[1] == 0x0a &&
94 productId[0] == 0x00 && productId[1] == 0x90 ) {
95 result = 1;
96 }
97
98 out:
99 if (have_io)
100 bus_space_unmap(iot, ioh, DM9000_IOSIZE);
101
102 return result;
103 }
104
105
106 void
dme_ssextio_attach(device_t parent,device_t self,void * aux)107 dme_ssextio_attach(device_t parent, device_t self, void *aux)
108 {
109 struct dme_softc *sc = device_private(self);
110 struct s3c2xx0_attach_args *sa = aux;
111 vaddr_t ioaddr;
112 const uint8_t *enaddr;
113 prop_data_t ea;
114
115 #ifdef MINI2440_ETHER_ADDR_FIXED
116 static uint8_t enaddr_default[ETHER_ADDR_LEN] = {MINI2440_ETHER_ADDR_FIXED};
117 #endif
118
119 sc->sc_iot = sa->sa_iot;
120 sc->sc_dev = self;
121
122 ioaddr = sa->sa_addr;
123 if (bus_space_map(sc->sc_iot, ioaddr, DM9000_IOSIZE, 0, &sc->sc_ioh)) {
124 aprint_error(": unable to map i/o space\n");
125 return;
126 }
127
128
129 sc->sc_ih = s3c2440_extint_establish(sa->sa_intr, IPL_NET, IST_EDGE_RISING, dme_intr, sc);
130 if (sc->sc_ih == NULL) {
131 aprint_error(": unable to establish interrupt\n");
132 return;
133 }
134
135 sc->dme_io = 0x0;
136 sc->dme_data = 0x4;
137
138 aprint_normal("\n");
139
140 ea = prop_dictionary_get(device_properties(self), "mac-address");
141 if( ea != NULL ) {
142 KASSERT(prop_object_type(ea) == PROP_TYPE_DATA);
143 KASSERT(prop_data_size(ea) == ETHER_ADDR_LEN);
144 enaddr = prop_data_data_nocopy(ea);
145 } else {
146 #ifdef MINI2440_ETHER_ADDR_FIXED
147 enaddr = &enaddr_default;
148 #else
149 aprint_error_dev(self, "Unable to get mac-address property\n");
150 return;
151 #endif
152 }
153
154 dme_attach(sc, enaddr);
155 }
156