1 | /* $NetBSD: makphy.c,v 1.42 2016/11/08 08:48:35 msaitoh Exp $ */ |
2 | |
3 | /*- |
4 | * Copyright (c) 1998, 1999, 2000, 2001 The NetBSD Foundation, Inc. |
5 | * All rights reserved. |
6 | * |
7 | * This code is derived from software contributed to The NetBSD Foundation |
8 | * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, |
9 | * NASA Ames Research Center. |
10 | * |
11 | * Redistribution and use in source and binary forms, with or without |
12 | * modification, are permitted provided that the following conditions |
13 | * are met: |
14 | * 1. Redistributions of source code must retain the above copyright |
15 | * notice, this list of conditions and the following disclaimer. |
16 | * 2. Redistributions in binary form must reproduce the above copyright |
17 | * notice, this list of conditions and the following disclaimer in the |
18 | * documentation and/or other materials provided with the distribution. |
19 | * |
20 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
21 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
22 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
23 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
24 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
25 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
26 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
27 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
28 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
29 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
30 | * POSSIBILITY OF SUCH DAMAGE. |
31 | */ |
32 | |
33 | /* |
34 | * Copyright (c) 1997 Manuel Bouyer. All rights reserved. |
35 | * |
36 | * Redistribution and use in source and binary forms, with or without |
37 | * modification, are permitted provided that the following conditions |
38 | * are met: |
39 | * 1. Redistributions of source code must retain the above copyright |
40 | * notice, this list of conditions and the following disclaimer. |
41 | * 2. Redistributions in binary form must reproduce the above copyright |
42 | * notice, this list of conditions and the following disclaimer in the |
43 | * documentation and/or other materials provided with the distribution. |
44 | * |
45 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
46 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
47 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
48 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
49 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
50 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
51 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
52 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
53 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
54 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
55 | */ |
56 | |
57 | /* |
58 | * Driver for the Marvell 88E1000 ``Alaska'' 10/100/1000 PHY. |
59 | */ |
60 | |
61 | #include <sys/cdefs.h> |
62 | __KERNEL_RCSID(0, "$NetBSD: makphy.c,v 1.42 2016/11/08 08:48:35 msaitoh Exp $" ); |
63 | |
64 | #include <sys/param.h> |
65 | #include <sys/systm.h> |
66 | #include <sys/kernel.h> |
67 | #include <sys/device.h> |
68 | #include <sys/socket.h> |
69 | #include <sys/errno.h> |
70 | |
71 | #include <net/if.h> |
72 | #include <net/if_media.h> |
73 | |
74 | #include <dev/mii/mii.h> |
75 | #include <dev/mii/miivar.h> |
76 | #include <dev/mii/miidevs.h> |
77 | |
78 | #include <dev/mii/makphyreg.h> |
79 | |
80 | static int makphymatch(device_t, cfdata_t, void *); |
81 | static void makphyattach(device_t, device_t, void *); |
82 | |
83 | CFATTACH_DECL_NEW(makphy, sizeof(struct mii_softc), |
84 | makphymatch, makphyattach, mii_phy_detach, mii_phy_activate); |
85 | |
86 | static int makphy_service(struct mii_softc *, struct mii_data *, int); |
87 | static void makphy_status(struct mii_softc *); |
88 | static void makphy_reset(struct mii_softc *); |
89 | |
90 | static const struct mii_phy_funcs makphy_funcs = { |
91 | makphy_service, makphy_status, makphy_reset, |
92 | }; |
93 | |
94 | static const struct mii_phydesc makphys[] = { |
95 | { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1000_3, |
96 | MII_STR_xxMARVELL_E1000_3 }, |
97 | |
98 | { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1000_5, |
99 | MII_STR_xxMARVELL_E1000_5 }, |
100 | |
101 | { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1011, |
102 | MII_STR_xxMARVELL_E1011 }, |
103 | |
104 | /* XXX: reported not to work on eg. HP XW9400 */ |
105 | { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1149, |
106 | MII_STR_xxMARVELL_E1149 }, |
107 | |
108 | { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1149R, |
109 | MII_STR_xxMARVELL_E1149R }, |
110 | |
111 | { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1111, |
112 | MII_STR_xxMARVELL_E1111 }, |
113 | |
114 | { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1116, |
115 | MII_STR_xxMARVELL_E1116 }, |
116 | |
117 | { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1145, |
118 | MII_STR_xxMARVELL_E1145 }, |
119 | |
120 | { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1116R, |
121 | MII_STR_xxMARVELL_E1116R }, |
122 | |
123 | { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1116R_29, |
124 | MII_STR_xxMARVELL_E1116R_29 }, |
125 | |
126 | { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1543, |
127 | MII_STR_xxMARVELL_E1543 }, |
128 | |
129 | { 0, 0, |
130 | NULL }, |
131 | }; |
132 | |
133 | static int |
134 | makphymatch(device_t parent, cfdata_t match, void *aux) |
135 | { |
136 | struct mii_attach_args *ma = aux; |
137 | |
138 | if (mii_phy_match(ma, makphys) != NULL) |
139 | return (10); |
140 | |
141 | return (0); |
142 | } |
143 | |
144 | static void |
145 | makphyattach(device_t parent, device_t self, void *aux) |
146 | { |
147 | struct mii_softc *sc = device_private(self); |
148 | struct mii_attach_args *ma = aux; |
149 | struct mii_data *mii = ma->mii_data; |
150 | const struct mii_phydesc *mpd; |
151 | |
152 | mpd = mii_phy_match(ma, makphys); |
153 | aprint_naive(": Media interface\n" ); |
154 | aprint_normal(": %s, rev. %d\n" , mpd->mpd_name, MII_REV(ma->mii_id2)); |
155 | |
156 | sc->mii_dev = self; |
157 | sc->mii_mpd_oui = MII_OUI(ma->mii_id1, ma->mii_id2); |
158 | sc->mii_mpd_model = MII_MODEL(ma->mii_id2); |
159 | sc->mii_mpd_rev = MII_REV(ma->mii_id2); |
160 | sc->mii_inst = mii->mii_instance; |
161 | sc->mii_phy = ma->mii_phyno; |
162 | sc->mii_funcs = &makphy_funcs; |
163 | sc->mii_pdata = mii; |
164 | sc->mii_flags = ma->mii_flags; |
165 | sc->mii_anegticks = MII_ANEGTICKS; |
166 | |
167 | switch (sc->mii_mpd_model) { |
168 | case MII_MODEL_xxMARVELL_E1011: |
169 | case MII_MODEL_xxMARVELL_E1112: |
170 | if (PHY_READ(sc, MII_MAKPHY_ESSR) & ESSR_FIBER_LINK) |
171 | sc->mii_flags |= MIIF_HAVEFIBER; |
172 | break; |
173 | case MII_MODEL_xxMARVELL_E1149: |
174 | case MII_MODEL_xxMARVELL_E1149R: |
175 | /* |
176 | * Some 88E1149 PHY's page select is initialized to |
177 | * point to other bank instead of copper/fiber bank |
178 | * which in turn resulted in wrong registers were |
179 | * accessed during PHY operation. It is believed that |
180 | * page 0 should be used for copper PHY so reinitialize |
181 | * MII_MAKPHY_EADR to select default copper PHY. If parent |
182 | * device know the type of PHY(either copper or fiber), |
183 | * that information should be used to select default |
184 | * type of PHY. |
185 | */ |
186 | PHY_WRITE(sc, MII_MAKPHY_EADR, 0); |
187 | break; |
188 | default: |
189 | break; |
190 | } |
191 | |
192 | PHY_RESET(sc); |
193 | |
194 | sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask; |
195 | if (sc->mii_capabilities & BMSR_EXTSTAT) |
196 | sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); |
197 | |
198 | aprint_normal_dev(self, "" ); |
199 | if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && |
200 | (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) |
201 | aprint_error("no media present" ); |
202 | else |
203 | mii_phy_add_media(sc); |
204 | aprint_normal("\n" ); |
205 | } |
206 | |
207 | static void |
208 | makphy_reset(struct mii_softc *sc) |
209 | { |
210 | uint16_t pscr; |
211 | |
212 | /* Assert CRS on transmit */ |
213 | pscr = PHY_READ(sc, MII_MAKPHY_PSCR); |
214 | PHY_WRITE(sc, MII_MAKPHY_PSCR, pscr | PSCR_CRS_ON_TX); |
215 | |
216 | mii_phy_reset(sc); |
217 | } |
218 | |
219 | static int |
220 | makphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) |
221 | { |
222 | struct ifmedia_entry *ife = mii->mii_media.ifm_cur; |
223 | int reg; |
224 | |
225 | switch (cmd) { |
226 | case MII_POLLSTAT: |
227 | /* |
228 | * If we're not polling our PHY instance, just return. |
229 | */ |
230 | if (IFM_INST(ife->ifm_media) != sc->mii_inst) |
231 | return (0); |
232 | break; |
233 | |
234 | case MII_MEDIACHG: |
235 | /* |
236 | * If the media indicates a different PHY instance, |
237 | * isolate ourselves. |
238 | */ |
239 | if (IFM_INST(ife->ifm_media) != sc->mii_inst) { |
240 | reg = PHY_READ(sc, MII_BMCR); |
241 | PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); |
242 | return (0); |
243 | } |
244 | |
245 | /* |
246 | * If the interface is not up, don't do anything. |
247 | */ |
248 | if ((mii->mii_ifp->if_flags & IFF_UP) == 0) |
249 | break; |
250 | |
251 | mii_phy_setmedia(sc); |
252 | if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) { |
253 | /* |
254 | * when not in auto mode, we need to restart nego |
255 | * anyway, or a switch from a fixed mode to another |
256 | * fixed mode may not be seen by the switch. |
257 | */ |
258 | PHY_WRITE(sc, MII_BMCR, |
259 | PHY_READ(sc, MII_BMCR) | BMCR_STARTNEG); |
260 | } |
261 | break; |
262 | |
263 | case MII_TICK: |
264 | /* |
265 | * If we're not currently selected, just return. |
266 | */ |
267 | if (IFM_INST(ife->ifm_media) != sc->mii_inst) |
268 | return (0); |
269 | |
270 | if (mii_phy_tick(sc) == EJUSTRETURN) |
271 | return (0); |
272 | break; |
273 | |
274 | case MII_DOWN: |
275 | mii_phy_down(sc); |
276 | return (0); |
277 | } |
278 | |
279 | /* Update the media status. */ |
280 | mii_phy_status(sc); |
281 | |
282 | /* Callback if something changed. */ |
283 | mii_phy_update(sc, cmd); |
284 | return (0); |
285 | } |
286 | |
287 | static void |
288 | makphy_status(struct mii_softc *sc) |
289 | { |
290 | struct mii_data *mii = sc->mii_pdata; |
291 | struct ifmedia_entry *ife = mii->mii_media.ifm_cur; |
292 | int bmcr, pssr, gtsr; |
293 | |
294 | mii->mii_media_status = IFM_AVALID; |
295 | mii->mii_media_active = IFM_ETHER; |
296 | |
297 | pssr = PHY_READ(sc, MII_MAKPHY_PSSR); |
298 | |
299 | if (pssr & PSSR_LINK) |
300 | mii->mii_media_status |= IFM_ACTIVE; |
301 | |
302 | bmcr = PHY_READ(sc, MII_BMCR); |
303 | if (bmcr & BMCR_ISO) { |
304 | mii->mii_media_active |= IFM_NONE; |
305 | mii->mii_media_status = 0; |
306 | return; |
307 | } |
308 | |
309 | if (bmcr & BMCR_LOOP) |
310 | mii->mii_media_active |= IFM_LOOP; |
311 | |
312 | if (bmcr & BMCR_AUTOEN) { |
313 | /* |
314 | * The media status bits are only valid of autonegotiation |
315 | * has completed (or it's disabled). |
316 | */ |
317 | if ((pssr & PSSR_RESOLVED) == 0) { |
318 | /* Erg, still trying, I guess... */ |
319 | mii->mii_media_active |= IFM_NONE; |
320 | return; |
321 | } |
322 | |
323 | switch (PSSR_SPEED_get(pssr)) { |
324 | case SPEED_1000: |
325 | mii->mii_media_active |= IFM_1000_T; |
326 | gtsr = PHY_READ(sc, MII_100T2SR); |
327 | if (gtsr & GTSR_MS_RES) |
328 | mii->mii_media_active |= IFM_ETH_MASTER; |
329 | break; |
330 | |
331 | case SPEED_100: |
332 | mii->mii_media_active |= IFM_100_TX; |
333 | break; |
334 | |
335 | case SPEED_10: |
336 | mii->mii_media_active |= IFM_10_T; |
337 | break; |
338 | |
339 | default: |
340 | mii->mii_media_active |= IFM_NONE; |
341 | mii->mii_media_status = 0; |
342 | return; |
343 | } |
344 | |
345 | if (pssr & PSSR_DUPLEX) |
346 | mii->mii_media_active |= |
347 | IFM_FDX | mii_phy_flowstatus(sc); |
348 | else |
349 | mii->mii_media_active |= IFM_HDX; |
350 | } else |
351 | mii->mii_media_active = ife->ifm_media; |
352 | } |
353 | |