1 /* $NetBSD: if_sm_gxio.c,v 1.11 2012/10/27 17:17:47 chs Exp $ */
2 /*
3 * Copyright (C) 2005, 2006 WIDE Project and SOUM Corporation.
4 * All rights reserved.
5 *
6 * Written by Takashi Kiyohara and Susumu Miki for WIDE Project and SOUM
7 * Corporation.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the project nor the name of SOUM Corporation
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE PROJECT and SOUM CORPORATION ``AS IS''
22 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
23 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT AND SOUM CORPORATION
25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31 * POSSIBILITY OF SUCH DAMAGE.
32 */
33 /*-
34 * Copyright (c) 1997 The NetBSD Foundation, Inc.
35 * All rights reserved.
36 *
37 * This code is derived from software contributed to The NetBSD Foundation
38 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
39 * NASA Ames Research Center.
40 *
41 * Redistribution and use in source and binary forms, with or without
42 * modification, are permitted provided that the following conditions
43 * are met:
44 * 1. Redistributions of source code must retain the above copyright
45 * notice, this list of conditions and the following disclaimer.
46 * 2. Redistributions in binary form must reproduce the above copyright
47 * notice, this list of conditions and the following disclaimer in the
48 * documentation and/or other materials provided with the distribution.
49 *
50 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
51 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
52 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
53 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
54 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
55 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
56 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
57 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
58 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
59 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
60 * POSSIBILITY OF SUCH DAMAGE.
61 */
62
63 #include <sys/cdefs.h>
64 __KERNEL_RCSID(0, "$NetBSD: if_sm_gxio.c,v 1.11 2012/10/27 17:17:47 chs Exp $");
65
66 #include <sys/param.h>
67 #include <sys/device.h>
68 #include <sys/errno.h>
69
70 #include <sys/systm.h>
71 #include <sys/mbuf.h>
72 #include <sys/socket.h>
73 #include <sys/ioctl.h>
74 #include <sys/syslog.h>
75 #include <sys/select.h>
76
77 #include <net/if.h>
78 #include <net/if_dl.h>
79 #include <net/if_ether.h>
80 #include <net/if_media.h>
81
82 #include <machine/intr.h>
83 #include <sys/bus.h>
84
85 #include <dev/mii/mii.h>
86 #include <dev/mii/miivar.h>
87
88 #include <dev/ic/smc91cxxreg.h>
89 #include <dev/ic/smc91cxxvar.h>
90
91 #include <evbarm/gumstix/gumstixvar.h>
92
93 #include "locators.h"
94
95
96 static int sm_gxio_match(device_t, struct cfdata *, void *);
97 static void sm_gxio_attach(device_t, device_t, void *);
98
99 static int ether_serial_digit = 1;
100
101 struct sm_gxio_softc {
102 struct smc91cxx_softc sc_smc;
103 void *sc_ih;
104 };
105
106 CFATTACH_DECL_NEW(sm_gxio, sizeof(struct sm_gxio_softc),
107 sm_gxio_match, sm_gxio_attach, NULL, NULL);
108
109
110 /* ARGSUSED */
111 static int
sm_gxio_match(device_t parent,struct cfdata * match,void * aux)112 sm_gxio_match(device_t parent, struct cfdata *match, void *aux)
113 {
114 struct gxio_attach_args *gxa = aux;
115 bus_space_tag_t iot = gxa->gxa_iot;
116 bus_space_handle_t ioh;
117 uint16_t tmp;
118 int rv = 0;
119 extern const char *smc91cxx_idstrs[];
120
121 /* Disallow wildcarded values. */
122 if (gxa->gxa_addr == GXIOCF_ADDR_DEFAULT)
123 return 0;
124 if (gxa->gxa_gpirq == GXIOCF_GPIRQ_DEFAULT)
125 return 0;
126
127 if (bus_space_map(iot, gxa->gxa_addr, SMC_IOSIZE, 0, &ioh) != 0)
128 return 0;
129
130 /* Check that high byte of BANK_SELECT is what we expect. */
131 tmp = bus_space_read_2(iot, ioh, BANK_SELECT_REG_W);
132 if ((tmp & BSR_DETECT_MASK) != BSR_DETECT_VALUE)
133 goto out;
134
135 /*
136 * Switch to bank 0 and perform the test again.
137 * XXX INVASIVE!
138 */
139 bus_space_write_2(iot, ioh, BANK_SELECT_REG_W, 0);
140 tmp = bus_space_read_2(iot, ioh, BANK_SELECT_REG_W);
141 if ((tmp & BSR_DETECT_MASK) != BSR_DETECT_VALUE)
142 goto out;
143
144 /*
145 * Check for a recognized chip id.
146 * XXX INVASIVE!
147 */
148 bus_space_write_2(iot, ioh, BANK_SELECT_REG_W, 3);
149 tmp = bus_space_read_2(iot, ioh, REVISION_REG_W);
150 if (smc91cxx_idstrs[RR_ID(tmp)] == NULL)
151 goto out;
152
153 if (ether_serial_digit > 15)
154 goto out;
155 /*
156 * Assume we have an SMC91Cxx.
157 */
158
159 rv = 1;
160
161 out:
162 bus_space_unmap(iot, ioh, SMC_IOSIZE);
163 return rv;
164 }
165
166 /* ARGSUSED */
167 static void
sm_gxio_attach(device_t parent,device_t self,void * aux)168 sm_gxio_attach(device_t parent, device_t self, void *aux)
169 {
170 struct sm_gxio_softc *gsc = device_private(self);
171 struct smc91cxx_softc *sc = &gsc->sc_smc;
172 struct gxio_attach_args *gxa = aux;
173 bus_space_handle_t ioh;
174 uint8_t myea[ETHER_ADDR_LEN];
175
176 aprint_normal("\n");
177 aprint_naive("\n");
178
179 KASSERT(system_serial_high != 0 || system_serial_low != 0);
180
181 /* Map i/o space. */
182 if (bus_space_map(gxa->gxa_iot, gxa->gxa_addr, SMC_IOSIZE, 0, &ioh))
183 panic("sm_gxio_attach: can't map i/o space");
184
185 sc->sc_dev = self;
186 sc->sc_bst = gxa->gxa_iot;
187 sc->sc_bsh = ioh;
188
189 /* should always be enabled */
190 sc->sc_flags |= SMC_FLAGS_ENABLED;
191
192 myea[0] = ((system_serial_high >> 8) & 0xfe) | 0x02;
193 myea[1] = system_serial_high;
194 myea[2] = system_serial_low >> 24;
195 myea[3] = system_serial_low >> 16;
196 myea[4] = system_serial_low >> 8;
197 myea[5] = (system_serial_low & 0xc0) |
198 (1 << 4) | ((ether_serial_digit++) & 0x0f);
199 smc91cxx_attach(sc, myea);
200
201 /* Establish the interrupt handler. */
202 gsc->sc_ih = gxio_intr_establish(gxa->gxa_sc,
203 gxa->gxa_gpirq, IST_EDGE_RISING, IPL_NET, smc91cxx_intr, sc);
204
205 if (gsc->sc_ih == NULL)
206 aprint_error_dev(self,
207 "couldn't establish interrupt handler\n");
208 }
209