1 /*-
2 * Copyright (c) 1999 The NetBSD Foundation, Inc.
3 * All rights reserved.
4 *
5 * This code is derived from software contributed to The NetBSD Foundation
6 * by Paul Kranenburg.
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 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the NetBSD
19 * Foundation, Inc. and its contributors.
20 * 4. Neither the name of The NetBSD Foundation nor the names of its
21 * contributors may be used to endorse or promote products derived
22 * from this software without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
25 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
26 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
27 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
28 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
29 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
30 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
31 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
32 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
33 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
34 * POSSIBILITY OF SUCH DAMAGE.
35 *
36 * from: NetBSD: if_hme_sbus.c,v 1.19 2004/03/17 17:04:58 pk Exp
37 */
38
39 #include <sys/cdefs.h>
40 __FBSDID("$FreeBSD: src/sys/dev/hme/if_hme_sbus.c,v 1.14.2.2 2005/04/20 23:37:01 marius Exp $");
41
42 /*
43 * SBus front-end device driver for the HME ethernet device.
44 */
45
46 #include <sys/param.h>
47 #include <sys/systm.h>
48 #include <sys/bus.h>
49 #include <sys/kernel.h>
50 #include <sys/module.h>
51 #include <sys/resource.h>
52 #include <sys/socket.h>
53
54 #include <dev/ofw/ofw_bus.h>
55
56 #include <machine/bus.h>
57 #include <machine/ofw_machdep.h>
58 #include <machine/resource.h>
59
60 #include <sys/rman.h>
61
62 #include <net/ethernet.h>
63 #include <net/if.h>
64 #include <net/if_arp.h>
65 #include <net/if_dl.h>
66 #include <net/if_media.h>
67
68 #include <dev/mii/mii.h>
69 #include <dev/mii/miivar.h>
70
71 #include <sparc64/sbus/sbusvar.h>
72
73 #include <dev/hme/if_hmereg.h>
74 #include <dev/hme/if_hmevar.h>
75
76 #include "miibus_if.h"
77
78 struct hme_sbus_softc {
79 struct hme_softc hsc_hme; /* HME device */
80 struct resource *hsc_seb_res;
81 int hsc_seb_rid;
82 struct resource *hsc_etx_res;
83 int hsc_etx_rid;
84 struct resource *hsc_erx_res;
85 int hsc_erx_rid;
86 struct resource *hsc_mac_res;
87 int hsc_mac_rid;
88 struct resource *hsc_mif_res;
89 int hsc_mif_rid;
90 struct resource *hsc_ires;
91 int hsc_irid;
92 void *hsc_ih;
93 };
94
95 static int hme_sbus_probe(device_t);
96 static int hme_sbus_attach(device_t);
97 static int hme_sbus_detach(device_t);
98 static int hme_sbus_suspend(device_t);
99 static int hme_sbus_resume(device_t);
100
101 static device_method_t hme_sbus_methods[] = {
102 /* Device interface */
103 DEVMETHOD(device_probe, hme_sbus_probe),
104 DEVMETHOD(device_attach, hme_sbus_attach),
105 DEVMETHOD(device_detach, hme_sbus_detach),
106 DEVMETHOD(device_suspend, hme_sbus_suspend),
107 DEVMETHOD(device_resume, hme_sbus_resume),
108 /* Can just use the suspend method here. */
109 DEVMETHOD(device_shutdown, hme_sbus_suspend),
110
111 /* bus interface */
112 DEVMETHOD(bus_print_child, bus_generic_print_child),
113 DEVMETHOD(bus_driver_added, bus_generic_driver_added),
114
115 /* MII interface */
116 DEVMETHOD(miibus_readreg, hme_mii_readreg),
117 DEVMETHOD(miibus_writereg, hme_mii_writereg),
118 DEVMETHOD(miibus_statchg, hme_mii_statchg),
119
120 { 0, 0 }
121 };
122
123 static driver_t hme_sbus_driver = {
124 "hme",
125 hme_sbus_methods,
126 sizeof(struct hme_sbus_softc)
127 };
128
129 DRIVER_MODULE(hme, sbus, hme_sbus_driver, hme_devclass, 0, 0);
130 MODULE_DEPEND(hme, ether, 1, 1, 1);
131
132 static int
133 hme_sbus_probe(device_t dev)
134 {
135 const char *name;
136
137 name = ofw_bus_get_name(dev);
138 if (strcmp(name, "SUNW,qfe") == 0 ||
139 strcmp(name, "SUNW,hme") == 0) {
140 device_set_desc(dev, "Sun HME 10/100 Ethernet");
141 return (0);
142 }
143 return (ENXIO);
144 }
145
146 static int
147 hme_sbus_attach(device_t dev)
148 {
149 struct hme_sbus_softc *hsc = device_get_softc(dev);
150 struct hme_softc *sc = &hsc->hsc_hme;
151 u_int32_t burst;
152 u_long start, count;
153 int error = 0;
154
155 mtx_init(&sc->sc_lock, device_get_nameunit(dev), MTX_NETWORK_LOCK,
156 MTX_DEF);
157 /*
158 * Map five register banks:
159 *
160 * bank 0: HME SEB registers
161 * bank 1: HME ETX registers
162 * bank 2: HME ERX registers
163 * bank 3: HME MAC registers
164 * bank 4: HME MIF registers
165 *
166 */
167 hsc->hsc_seb_rid = 0;
168 hsc->hsc_seb_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
169 &hsc->hsc_seb_rid, RF_ACTIVE);
170 if (hsc->hsc_seb_res == NULL) {
171 device_printf(dev, "cannot map SEB registers\n");
172 error = ENXIO;
173 goto fail_mtx_res;
174 }
175 sc->sc_sebt = rman_get_bustag(hsc->hsc_seb_res);
176 sc->sc_sebh = rman_get_bushandle(hsc->hsc_seb_res);
177
178 hsc->hsc_etx_rid = 1;
179 hsc->hsc_etx_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
180 &hsc->hsc_etx_rid, RF_ACTIVE);
181 if (hsc->hsc_etx_res == NULL) {
182 device_printf(dev, "cannot map ETX registers\n");
183 error = ENXIO;
184 goto fail_seb_res;
185 }
186 sc->sc_etxt = rman_get_bustag(hsc->hsc_etx_res);
187 sc->sc_etxh = rman_get_bushandle(hsc->hsc_etx_res);
188
189 hsc->hsc_erx_rid = 2;
190 hsc->hsc_erx_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
191 &hsc->hsc_erx_rid, RF_ACTIVE);
192 if (hsc->hsc_erx_res == NULL) {
193 device_printf(dev, "cannot map ERX registers\n");
194 error = ENXIO;
195 goto fail_etx_res;
196 }
197 sc->sc_erxt = rman_get_bustag(hsc->hsc_erx_res);
198 sc->sc_erxh = rman_get_bushandle(hsc->hsc_erx_res);
199
200 hsc->hsc_mac_rid = 3;
201 hsc->hsc_mac_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
202 &hsc->hsc_mac_rid, RF_ACTIVE);
203 if (hsc->hsc_mac_res == NULL) {
204 device_printf(dev, "cannot map MAC registers\n");
205 error = ENXIO;
206 goto fail_erx_res;
207 }
208 sc->sc_mact = rman_get_bustag(hsc->hsc_mac_res);
209 sc->sc_mach = rman_get_bushandle(hsc->hsc_mac_res);
210
211 /*
212 * At least on some HMEs, the MIF registers seem to be inside the MAC
213 * range, so try to kludge around it.
214 */
215 hsc->hsc_mif_rid = 4;
216 hsc->hsc_mif_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
217 &hsc->hsc_mif_rid, RF_ACTIVE);
218 if (hsc->hsc_mif_res == NULL) {
219 if (bus_get_resource(dev, SYS_RES_MEMORY, hsc->hsc_mif_rid,
220 &start, &count) != 0) {
221 device_printf(dev, "cannot get MIF registers\n");
222 error = ENXIO;
223 goto fail_mac_res;
224 }
225 if (start < rman_get_start(hsc->hsc_mac_res) ||
226 start + count - 1 > rman_get_end(hsc->hsc_mac_res)) {
227 device_printf(dev, "cannot move MIF registers to MAC "
228 "bank\n");
229 error = ENXIO;
230 goto fail_mac_res;
231 }
232 sc->sc_mift = sc->sc_mact;
233 bus_space_subregion(sc->sc_mact, sc->sc_mach,
234 start - rman_get_start(hsc->hsc_mac_res), count,
235 &sc->sc_mifh);
236 } else {
237 sc->sc_mift = rman_get_bustag(hsc->hsc_mif_res);
238 sc->sc_mifh = rman_get_bushandle(hsc->hsc_mif_res);
239 }
240
241 hsc->hsc_irid = 0;
242 hsc->hsc_ires = bus_alloc_resource_any(dev, SYS_RES_IRQ,
243 &hsc->hsc_irid, RF_SHAREABLE | RF_ACTIVE);
244 if (hsc->hsc_ires == NULL) {
245 device_printf(dev, "could not allocate interrupt\n");
246 error = ENXIO;
247 goto fail_mif_res;
248 }
249
250 OF_getetheraddr(dev, sc->sc_arpcom.ac_enaddr);
251
252 burst = sbus_get_burstsz(dev);
253 /* Translate into plain numerical format */
254 if ((burst & SBUS_BURST_64))
255 sc->sc_burst = 64;
256 else if ((burst & SBUS_BURST_32))
257 sc->sc_burst = 32;
258 else if ((burst & SBUS_BURST_16))
259 sc->sc_burst = 16;
260 else
261 sc->sc_burst = 0;
262
263 sc->sc_pci = 0; /* XXX: should all be done in bus_dma. */
264 sc->sc_dev = dev;
265
266 if ((error = hme_config(sc)) != 0) {
267 device_printf(dev, "could not be configured\n");
268 goto fail_ires;
269 }
270
271 if ((error = bus_setup_intr(dev, hsc->hsc_ires, INTR_TYPE_NET |
272 INTR_MPSAFE, hme_intr, sc, &hsc->hsc_ih)) != 0) {
273 device_printf(dev, "couldn't establish interrupt\n");
274 hme_detach(sc);
275 goto fail_ires;
276 }
277 return (0);
278
279 fail_ires:
280 bus_release_resource(dev, SYS_RES_IRQ, hsc->hsc_irid, hsc->hsc_ires);
281 fail_mif_res:
282 if (hsc->hsc_mif_res != NULL) {
283 bus_release_resource(dev, SYS_RES_MEMORY, hsc->hsc_mif_rid,
284 hsc->hsc_mif_res);
285 }
286 fail_mac_res:
287 bus_release_resource(dev, SYS_RES_MEMORY, hsc->hsc_mac_rid,
288 hsc->hsc_mac_res);
289 fail_erx_res:
290 bus_release_resource(dev, SYS_RES_MEMORY, hsc->hsc_erx_rid,
291 hsc->hsc_erx_res);
292 fail_etx_res:
293 bus_release_resource(dev, SYS_RES_MEMORY, hsc->hsc_etx_rid,
294 hsc->hsc_etx_res);
295 fail_seb_res:
296 bus_release_resource(dev, SYS_RES_MEMORY, hsc->hsc_seb_rid,
297 hsc->hsc_seb_res);
298 fail_mtx_res:
299 mtx_destroy(&sc->sc_lock);
300 return (error);
301 }
302
303 static int
304 hme_sbus_detach(device_t dev)
305 {
306 struct hme_sbus_softc *hsc = device_get_softc(dev);
307 struct hme_softc *sc = &hsc->hsc_hme;
308
309 bus_teardown_intr(dev, hsc->hsc_ires, hsc->hsc_ih);
310 hme_detach(sc);
311 bus_release_resource(dev, SYS_RES_IRQ, hsc->hsc_irid, hsc->hsc_ires);
312 if (hsc->hsc_mif_res != NULL) {
313 bus_release_resource(dev, SYS_RES_MEMORY, hsc->hsc_mif_rid,
314 hsc->hsc_mif_res);
315 }
316 bus_release_resource(dev, SYS_RES_MEMORY, hsc->hsc_mac_rid,
317 hsc->hsc_mac_res);
318 bus_release_resource(dev, SYS_RES_MEMORY, hsc->hsc_erx_rid,
319 hsc->hsc_erx_res);
320 bus_release_resource(dev, SYS_RES_MEMORY, hsc->hsc_etx_rid,
321 hsc->hsc_etx_res);
322 bus_release_resource(dev, SYS_RES_MEMORY, hsc->hsc_seb_rid,
323 hsc->hsc_seb_res);
324 mtx_destroy(&sc->sc_lock);
325 return (0);
326 }
327
328 static int
329 hme_sbus_suspend(device_t dev)
330 {
331 struct hme_sbus_softc *hsc = device_get_softc(dev);
332 struct hme_softc *sc = &hsc->hsc_hme;
333
334 hme_suspend(sc);
335 return (0);
336 }
337
338 static int
339 hme_sbus_resume(device_t dev)
340 {
341 struct hme_sbus_softc *hsc = device_get_softc(dev);
342 struct hme_softc *sc = &hsc->hsc_hme;
343
344 hme_resume(sc);
345 return (0);
346 }
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