sqphy.c revision 1.51 1 1.51 msaitoh /* $NetBSD: sqphy.c,v 1.51 2016/07/07 06:55:41 msaitoh Exp $ */
2 1.1 thorpej
3 1.1 thorpej /*-
4 1.23 thorpej * Copyright (c) 1998, 1999, 2000, 2001 The NetBSD Foundation, Inc.
5 1.1 thorpej * All rights reserved.
6 1.1 thorpej *
7 1.1 thorpej * This code is derived from software contributed to The NetBSD Foundation
8 1.1 thorpej * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
9 1.1 thorpej * NASA Ames Research Center.
10 1.1 thorpej *
11 1.1 thorpej * Redistribution and use in source and binary forms, with or without
12 1.1 thorpej * modification, are permitted provided that the following conditions
13 1.1 thorpej * are met:
14 1.1 thorpej * 1. Redistributions of source code must retain the above copyright
15 1.1 thorpej * notice, this list of conditions and the following disclaimer.
16 1.1 thorpej * 2. Redistributions in binary form must reproduce the above copyright
17 1.1 thorpej * notice, this list of conditions and the following disclaimer in the
18 1.1 thorpej * documentation and/or other materials provided with the distribution.
19 1.1 thorpej *
20 1.1 thorpej * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
21 1.1 thorpej * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
22 1.1 thorpej * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23 1.1 thorpej * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
24 1.1 thorpej * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 1.1 thorpej * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 1.1 thorpej * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 1.1 thorpej * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 1.1 thorpej * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 1.1 thorpej * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 1.1 thorpej * POSSIBILITY OF SUCH DAMAGE.
31 1.1 thorpej */
32 1.36 perry
33 1.1 thorpej /*
34 1.1 thorpej * Copyright (c) 1997 Manuel Bouyer. All rights reserved.
35 1.1 thorpej *
36 1.1 thorpej * Redistribution and use in source and binary forms, with or without
37 1.1 thorpej * modification, are permitted provided that the following conditions
38 1.1 thorpej * are met:
39 1.1 thorpej * 1. Redistributions of source code must retain the above copyright
40 1.1 thorpej * notice, this list of conditions and the following disclaimer.
41 1.1 thorpej * 2. Redistributions in binary form must reproduce the above copyright
42 1.1 thorpej * notice, this list of conditions and the following disclaimer in the
43 1.1 thorpej * documentation and/or other materials provided with the distribution.
44 1.1 thorpej *
45 1.1 thorpej * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
46 1.1 thorpej * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
47 1.1 thorpej * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
48 1.1 thorpej * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
49 1.1 thorpej * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
50 1.1 thorpej * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
51 1.1 thorpej * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
52 1.1 thorpej * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
53 1.1 thorpej * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
54 1.1 thorpej * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
55 1.1 thorpej */
56 1.1 thorpej
57 1.1 thorpej /*
58 1.23 thorpej * driver for Seeq 80220/80221, 80223, and 80225 10/100 ethernet PHYs
59 1.1 thorpej * datasheet from www.seeq.com
60 1.1 thorpej */
61 1.25 lukem
62 1.25 lukem #include <sys/cdefs.h>
63 1.51 msaitoh __KERNEL_RCSID(0, "$NetBSD: sqphy.c,v 1.51 2016/07/07 06:55:41 msaitoh Exp $");
64 1.1 thorpej
65 1.1 thorpej #include <sys/param.h>
66 1.1 thorpej #include <sys/systm.h>
67 1.1 thorpej #include <sys/kernel.h>
68 1.1 thorpej #include <sys/device.h>
69 1.1 thorpej #include <sys/socket.h>
70 1.9 thorpej #include <sys/errno.h>
71 1.1 thorpej
72 1.1 thorpej #include <net/if.h>
73 1.1 thorpej #include <net/if_media.h>
74 1.1 thorpej
75 1.1 thorpej #include <dev/mii/mii.h>
76 1.1 thorpej #include <dev/mii/miivar.h>
77 1.1 thorpej #include <dev/mii/miidevs.h>
78 1.1 thorpej
79 1.1 thorpej #include <dev/mii/sqphyreg.h>
80 1.1 thorpej
81 1.47 xtraeme static int sqphymatch(device_t, cfdata_t, void *);
82 1.47 xtraeme static void sqphyattach(device_t, device_t, void *);
83 1.1 thorpej
84 1.47 xtraeme CFATTACH_DECL_NEW(sqphy, sizeof(struct mii_softc),
85 1.33 thorpej sqphymatch, sqphyattach, mii_phy_detach, mii_phy_activate);
86 1.1 thorpej
87 1.35 thorpej static int sqphy_service(struct mii_softc *, struct mii_data *, int);
88 1.35 thorpej static void sqphy_status(struct mii_softc *);
89 1.35 thorpej static void sqphy_84220_reset(struct mii_softc *);
90 1.1 thorpej
91 1.35 thorpej static const struct mii_phy_funcs sqphy_funcs = {
92 1.19 thorpej sqphy_service, sqphy_status, mii_phy_reset,
93 1.19 thorpej };
94 1.19 thorpej
95 1.35 thorpej static const struct mii_phy_funcs sqphy_84220_funcs = {
96 1.28 scw sqphy_service, sqphy_status, sqphy_84220_reset,
97 1.28 scw };
98 1.28 scw
99 1.35 thorpej static const struct mii_phydesc sqphys[] = {
100 1.22 thorpej { MII_OUI_SEEQ, MII_MODEL_SEEQ_80220,
101 1.22 thorpej MII_STR_SEEQ_80220 },
102 1.22 thorpej
103 1.23 thorpej { MII_OUI_SEEQ, MII_MODEL_SEEQ_80225,
104 1.23 thorpej MII_STR_SEEQ_80225 },
105 1.23 thorpej
106 1.28 scw { MII_OUI_SEEQ, MII_MODEL_SEEQ_84220,
107 1.28 scw MII_STR_SEEQ_84220 },
108 1.28 scw
109 1.22 thorpej { 0, 0,
110 1.22 thorpej NULL },
111 1.22 thorpej };
112 1.22 thorpej
113 1.35 thorpej static int
114 1.47 xtraeme sqphymatch(device_t parent, cfdata_t match, void *aux)
115 1.1 thorpej {
116 1.1 thorpej struct mii_attach_args *ma = aux;
117 1.1 thorpej
118 1.22 thorpej if (mii_phy_match(ma, sqphys) != NULL)
119 1.5 thorpej return (10);
120 1.1 thorpej
121 1.1 thorpej return (0);
122 1.1 thorpej }
123 1.1 thorpej
124 1.35 thorpej static void
125 1.47 xtraeme sqphyattach(device_t parent, device_t self, void *aux)
126 1.1 thorpej {
127 1.39 thorpej struct mii_softc *sc = device_private(self);
128 1.1 thorpej struct mii_attach_args *ma = aux;
129 1.1 thorpej struct mii_data *mii = ma->mii_data;
130 1.22 thorpej const struct mii_phydesc *mpd;
131 1.1 thorpej
132 1.22 thorpej mpd = mii_phy_match(ma, sqphys);
133 1.34 thorpej aprint_naive(": Media interface\n");
134 1.34 thorpej aprint_normal(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2));
135 1.1 thorpej
136 1.47 xtraeme sc->mii_dev = self;
137 1.6 thorpej sc->mii_inst = mii->mii_instance;
138 1.6 thorpej sc->mii_phy = ma->mii_phyno;
139 1.6 thorpej sc->mii_pdata = mii;
140 1.26 thorpej sc->mii_flags = ma->mii_flags;
141 1.42 christos sc->mii_anegticks = MII_ANEGTICKS;
142 1.1 thorpej
143 1.28 scw switch (MII_MODEL(ma->mii_id2)) {
144 1.28 scw case MII_MODEL_SEEQ_84220:
145 1.28 scw sc->mii_funcs = &sqphy_84220_funcs;
146 1.51 msaitoh aprint_normal_dev(self,
147 1.51 msaitoh "using Seeq 84220 isolate/reset hack\n");
148 1.28 scw break;
149 1.28 scw
150 1.28 scw default:
151 1.28 scw sc->mii_funcs = &sqphy_funcs;
152 1.28 scw }
153 1.28 scw
154 1.19 thorpej PHY_RESET(sc);
155 1.1 thorpej
156 1.51 msaitoh sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
157 1.47 xtraeme aprint_normal_dev(self, "");
158 1.6 thorpej if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0)
159 1.34 thorpej aprint_error("no media present");
160 1.1 thorpej else
161 1.14 thorpej mii_phy_add_media(sc);
162 1.34 thorpej aprint_normal("\n");
163 1.1 thorpej }
164 1.1 thorpej
165 1.35 thorpej static int
166 1.24 thorpej sqphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
167 1.1 thorpej {
168 1.1 thorpej struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
169 1.1 thorpej int reg;
170 1.13 thorpej
171 1.1 thorpej switch (cmd) {
172 1.1 thorpej case MII_POLLSTAT:
173 1.1 thorpej /*
174 1.1 thorpej * If we're not polling our PHY instance, just return.
175 1.1 thorpej */
176 1.6 thorpej if (IFM_INST(ife->ifm_media) != sc->mii_inst)
177 1.1 thorpej return (0);
178 1.1 thorpej break;
179 1.1 thorpej
180 1.1 thorpej case MII_MEDIACHG:
181 1.1 thorpej /*
182 1.1 thorpej * If the media indicates a different PHY instance,
183 1.1 thorpej * isolate ourselves.
184 1.1 thorpej */
185 1.6 thorpej if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
186 1.6 thorpej reg = PHY_READ(sc, MII_BMCR);
187 1.6 thorpej PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
188 1.1 thorpej return (0);
189 1.1 thorpej }
190 1.1 thorpej
191 1.1 thorpej /*
192 1.1 thorpej * If the interface is not up, don't do anything.
193 1.1 thorpej */
194 1.1 thorpej if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
195 1.1 thorpej break;
196 1.1 thorpej
197 1.17 thorpej mii_phy_setmedia(sc);
198 1.1 thorpej break;
199 1.1 thorpej
200 1.1 thorpej case MII_TICK:
201 1.1 thorpej /*
202 1.1 thorpej * If we're not currently selected, just return.
203 1.1 thorpej */
204 1.6 thorpej if (IFM_INST(ife->ifm_media) != sc->mii_inst)
205 1.1 thorpej return (0);
206 1.1 thorpej
207 1.18 thorpej if (mii_phy_tick(sc) == EJUSTRETURN)
208 1.9 thorpej return (0);
209 1.1 thorpej break;
210 1.12 thorpej
211 1.12 thorpej case MII_DOWN:
212 1.12 thorpej mii_phy_down(sc);
213 1.12 thorpej return (0);
214 1.1 thorpej }
215 1.1 thorpej
216 1.1 thorpej /* Update the media status. */
217 1.16 thorpej mii_phy_status(sc);
218 1.1 thorpej
219 1.1 thorpej /* Callback if something changed. */
220 1.18 thorpej mii_phy_update(sc, cmd);
221 1.1 thorpej return (0);
222 1.1 thorpej }
223 1.1 thorpej
224 1.35 thorpej static void
225 1.24 thorpej sqphy_status(struct mii_softc *sc)
226 1.1 thorpej {
227 1.6 thorpej struct mii_data *mii = sc->mii_pdata;
228 1.11 thorpej struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
229 1.1 thorpej int bmsr, bmcr, status;
230 1.1 thorpej
231 1.1 thorpej mii->mii_media_status = IFM_AVALID;
232 1.1 thorpej mii->mii_media_active = IFM_ETHER;
233 1.1 thorpej
234 1.6 thorpej bmsr = PHY_READ(sc, MII_BMSR) |
235 1.6 thorpej PHY_READ(sc, MII_BMSR);
236 1.1 thorpej if (bmsr & BMSR_LINK)
237 1.1 thorpej mii->mii_media_status |= IFM_ACTIVE;
238 1.1 thorpej
239 1.6 thorpej bmcr = PHY_READ(sc, MII_BMCR);
240 1.1 thorpej if (bmcr & BMCR_ISO) {
241 1.1 thorpej mii->mii_media_active |= IFM_NONE;
242 1.1 thorpej mii->mii_media_status = 0;
243 1.1 thorpej return;
244 1.1 thorpej }
245 1.1 thorpej
246 1.1 thorpej if (bmcr & BMCR_LOOP)
247 1.1 thorpej mii->mii_media_active |= IFM_LOOP;
248 1.1 thorpej
249 1.7 thorpej if (bmcr & BMCR_AUTOEN) {
250 1.7 thorpej if ((bmsr & BMSR_ACOMP) == 0) {
251 1.7 thorpej /* Erg, still trying, I guess... */
252 1.7 thorpej mii->mii_media_active |= IFM_NONE;
253 1.7 thorpej return;
254 1.7 thorpej }
255 1.23 thorpej /*
256 1.23 thorpej * Note: don't get fancy here -- the 80225 only
257 1.23 thorpej * supports the SPD_DET and DPLX_DET bits in
258 1.23 thorpej * the STATUS register.
259 1.23 thorpej */
260 1.7 thorpej status = PHY_READ(sc, MII_SQPHY_STATUS);
261 1.7 thorpej if (status & STATUS_SPD_DET)
262 1.7 thorpej mii->mii_media_active |= IFM_100_TX;
263 1.7 thorpej else
264 1.7 thorpej mii->mii_media_active |= IFM_10_T;
265 1.7 thorpej if (status & STATUS_DPLX_DET)
266 1.7 thorpej mii->mii_media_active |= IFM_FDX;
267 1.50 msaitoh else
268 1.50 msaitoh mii->mii_media_active |= IFM_HDX;
269 1.8 thorpej } else
270 1.11 thorpej mii->mii_media_active = ife->ifm_media;
271 1.28 scw }
272 1.28 scw
273 1.35 thorpej static void
274 1.28 scw sqphy_84220_reset(struct mii_softc *sc)
275 1.28 scw {
276 1.28 scw int reg;
277 1.28 scw
278 1.28 scw mii_phy_reset(sc);
279 1.28 scw
280 1.28 scw /*
281 1.28 scw * This PHY sometimes insists on coming out of reset isolated,
282 1.28 scw * even when the MDA[0-3] pins are pulled high (to indicate
283 1.28 scw * PHY address 0), contrary to the device's datasheet.
284 1.28 scw *
285 1.28 scw * Morever, simply clearing BMCR_ISO here isn't enough; the
286 1.28 scw * change won't stick until about 30mS *after* the PHY has
287 1.28 scw * been reset.
288 1.28 scw *
289 1.28 scw * This sucks.
290 1.28 scw */
291 1.30 scw while ((sc->mii_inst == 0 || (sc->mii_flags & MIIF_NOISOLATE)) &&
292 1.28 scw ((reg = PHY_READ(sc, MII_BMCR)) & BMCR_ISO) != 0) {
293 1.28 scw
294 1.30 scw delay(35000);
295 1.28 scw PHY_WRITE(sc, MII_BMCR, reg & ~BMCR_ISO);
296 1.30 scw delay(35000);
297 1.28 scw }
298 1.1 thorpej }
299