1 /*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 2007 The DragonFly Project. All rights reserved.
5 *
6 * This code is derived from software contributed to The DragonFly Project
7 * by Sepherosa Ziehau <sepherosa@gmail.com>
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 *
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
18 * distribution.
19 * 3. Neither the name of The DragonFly Project nor the names of its
20 * contributors may be used to endorse or promote products derived
21 * from this software without specific, prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
24 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
25 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
26 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
27 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
28 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
29 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
30 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
31 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
32 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
33 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 *
36 * $DragonFly: src/sys/dev/netif/mii_layer/truephy.c,v 1.3 2008/02/10 07:29:27 sephe Exp $
37 */
38
39 #include <sys/param.h>
40 #include <sys/systm.h>
41 #include <sys/kernel.h>
42 #include <sys/socket.h>
43 #include <sys/errno.h>
44 #include <sys/module.h>
45 #include <sys/bus.h>
46
47 #include <net/if.h>
48 #include <net/if_var.h>
49 #include <net/if_media.h>
50 #include <net/if_arp.h>
51 #include <net/ethernet.h>
52 #include <net/if_vlan_var.h>
53
54 #include <dev/mii/mii.h>
55 #include <dev/mii/miivar.h>
56 #include "miidevs.h"
57
58 #include <dev/mii/truephyreg.h>
59
60 #include "miibus_if.h"
61
62 #define TRUEPHY_FRAMELEN(mtu) \
63 (ETHER_HDR_LEN + ETHER_VLAN_ENCAP_LEN + (mtu) + ETHER_CRC_LEN)
64
65 static int truephy_service(struct mii_softc *, struct mii_data *, int);
66 static int truephy_attach(device_t);
67 static int truephy_probe(device_t);
68 static void truephy_reset(struct mii_softc *);
69 static void truephy_status(struct mii_softc *);
70
71 static device_method_t truephy_methods[] = {
72 /* device interface */
73 DEVMETHOD(device_probe, truephy_probe),
74 DEVMETHOD(device_attach, truephy_attach),
75 DEVMETHOD(device_detach, mii_phy_detach),
76 DEVMETHOD(device_shutdown, bus_generic_shutdown),
77 DEVMETHOD_END
78 };
79
80 static const struct mii_phydesc truephys[] = {
81 MII_PHY_DESC(AGERE, ET1011),
82 MII_PHY_DESC(AGERE, ET1011C),
83 MII_PHY_END
84 };
85
86 static driver_t truephy_driver = {
87 "truephy",
88 truephy_methods,
89 sizeof(struct mii_softc)
90 };
91
92 DRIVER_MODULE(truephy, miibus, truephy_driver, 0, 0);
93
94 static const struct mii_phy_funcs truephy_funcs = {
95 truephy_service,
96 truephy_status,
97 truephy_reset
98 };
99
100 static const struct truephy_dsp {
101 uint16_t index;
102 uint16_t data;
103 } truephy_dspcode[] = {
104 { 0x880b, 0x0926 }, /* AfeIfCreg4B1000Msbs */
105 { 0x880c, 0x0926 }, /* AfeIfCreg4B100Msbs */
106 { 0x880d, 0x0926 }, /* AfeIfCreg4B10Msbs */
107
108 { 0x880e, 0xb4d3 }, /* AfeIfCreg4B1000Lsbs */
109 { 0x880f, 0xb4d3 }, /* AfeIfCreg4B100Lsbs */
110 { 0x8810, 0xb4d3 }, /* AfeIfCreg4B10Lsbs */
111
112 { 0x8805, 0xb03e }, /* AfeIfCreg3B1000Msbs */
113 { 0x8806, 0xb03e }, /* AfeIfCreg3B100Msbs */
114 { 0x8807, 0xff00 }, /* AfeIfCreg3B10Msbs */
115
116 { 0x8808, 0xe090 }, /* AfeIfCreg3B1000Lsbs */
117 { 0x8809, 0xe110 }, /* AfeIfCreg3B100Lsbs */
118 { 0x880a, 0x0000 }, /* AfeIfCreg3B10Lsbs */
119
120 { 0x300d, 1 }, /* DisableNorm */
121
122 { 0x280c, 0x0180 }, /* LinkHoldEnd */
123
124 { 0x1c21, 0x0002 }, /* AlphaM */
125
126 { 0x3821, 6 }, /* FfeLkgTx0 */
127 { 0x381d, 1 }, /* FfeLkg1g4 */
128 { 0x381e, 1 }, /* FfeLkg1g5 */
129 { 0x381f, 1 }, /* FfeLkg1g6 */
130 { 0x3820, 1 }, /* FfeLkg1g7 */
131
132 { 0x8402, 0x01f0 }, /* Btinact */
133 { 0x800e, 20 }, /* LftrainTime */
134 { 0x800f, 24 }, /* DvguardTime */
135 { 0x8010, 46 } /* IdlguardTime */
136 };
137
138 static int
truephy_probe(device_t dev)139 truephy_probe(device_t dev)
140 {
141
142 return (mii_phy_dev_probe(dev, truephys, BUS_PROBE_DEFAULT));
143 }
144
145 static int
truephy_attach(device_t dev)146 truephy_attach(device_t dev)
147 {
148 struct mii_softc *sc;
149
150 sc = device_get_softc(dev);
151
152 mii_phy_dev_attach(dev, MIIF_NOISOLATE | MIIF_NOMANPAUSE,
153 &truephy_funcs, 0);
154
155 PHY_RESET(sc);
156
157 sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & sc->mii_capmask;
158 if (sc->mii_capabilities & BMSR_EXTSTAT) {
159 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR);
160 /* No 1000baseT half-duplex support */
161 sc->mii_extcapabilities &= ~EXTSR_1000THDX;
162 }
163
164 device_printf(dev, " ");
165 mii_phy_add_media(sc);
166 printf("\n");
167
168 MIIBUS_MEDIAINIT(sc->mii_dev);
169 return (0);
170 }
171
172 static int
truephy_service(struct mii_softc * sc,struct mii_data * mii,int cmd)173 truephy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
174 {
175 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
176 int bmcr;
177
178 switch (cmd) {
179 case MII_POLLSTAT:
180 break;
181
182 case MII_MEDIACHG:
183 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) {
184 bmcr = PHY_READ(sc, MII_BMCR) & ~BMCR_AUTOEN;
185 PHY_WRITE(sc, MII_BMCR, bmcr);
186 PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_PDOWN);
187 }
188
189 mii_phy_setmedia(sc);
190
191 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) {
192 bmcr = PHY_READ(sc, MII_BMCR) & ~BMCR_PDOWN;
193 PHY_WRITE(sc, MII_BMCR, bmcr);
194
195 if (IFM_SUBTYPE(ife->ifm_media) == IFM_1000_T) {
196 PHY_WRITE(sc, MII_BMCR,
197 bmcr | BMCR_AUTOEN | BMCR_STARTNEG);
198 }
199 }
200 break;
201
202 case MII_TICK:
203 if (mii_phy_tick(sc) == EJUSTRETURN)
204 return (0);
205 break;
206 }
207
208 /* Update the media status. */
209 PHY_STATUS(sc);
210
211 /* Callback if something changed. */
212 mii_phy_update(sc, cmd);
213 return (0);
214 }
215
216 static void
truephy_reset(struct mii_softc * sc)217 truephy_reset(struct mii_softc *sc)
218 {
219 int i;
220
221 if (sc->mii_mpd_model == MII_MODEL_AGERE_ET1011) {
222 mii_phy_reset(sc);
223 return;
224 }
225
226 for (i = 0; i < 2; ++i) {
227 PHY_READ(sc, MII_PHYIDR1);
228 PHY_READ(sc, MII_PHYIDR2);
229
230 PHY_READ(sc, TRUEPHY_CTRL);
231 PHY_WRITE(sc, TRUEPHY_CTRL,
232 TRUEPHY_CTRL_DIAG | TRUEPHY_CTRL_RSV1);
233
234 PHY_WRITE(sc, TRUEPHY_INDEX, TRUEPHY_INDEX_MAGIC);
235 PHY_READ(sc, TRUEPHY_DATA);
236
237 PHY_WRITE(sc, TRUEPHY_CTRL, TRUEPHY_CTRL_RSV1);
238 }
239
240 PHY_READ(sc, MII_BMCR);
241 PHY_READ(sc, TRUEPHY_CTRL);
242 PHY_WRITE(sc, MII_BMCR, BMCR_AUTOEN | BMCR_PDOWN | BMCR_S1000);
243 PHY_WRITE(sc, TRUEPHY_CTRL,
244 TRUEPHY_CTRL_DIAG | TRUEPHY_CTRL_RSV1 | TRUEPHY_CTRL_RSV0);
245
246 for (i = 0; i < nitems(truephy_dspcode); ++i) {
247 const struct truephy_dsp *dsp = &truephy_dspcode[i];
248
249 PHY_WRITE(sc, TRUEPHY_INDEX, dsp->index);
250 PHY_WRITE(sc, TRUEPHY_DATA, dsp->data);
251
252 PHY_WRITE(sc, TRUEPHY_INDEX, dsp->index);
253 PHY_READ(sc, TRUEPHY_DATA);
254 }
255
256 PHY_READ(sc, MII_BMCR);
257 PHY_READ(sc, TRUEPHY_CTRL);
258 PHY_WRITE(sc, MII_BMCR, BMCR_AUTOEN | BMCR_S1000);
259 PHY_WRITE(sc, TRUEPHY_CTRL, TRUEPHY_CTRL_RSV1);
260
261 mii_phy_reset(sc);
262
263 if (TRUEPHY_FRAMELEN((if_getmtu(sc->mii_pdata->mii_ifp)) > 2048)) {
264 int conf;
265
266 conf = PHY_READ(sc, TRUEPHY_CONF);
267 conf &= ~TRUEPHY_CONF_TXFIFO_MASK;
268 conf |= TRUEPHY_CONF_TXFIFO_24;
269 PHY_WRITE(sc, TRUEPHY_CONF, conf);
270 }
271 }
272
273 static void
truephy_status(struct mii_softc * sc)274 truephy_status(struct mii_softc *sc)
275 {
276 struct mii_data *mii = sc->mii_pdata;
277 int bmsr, bmcr, sr;
278
279 mii->mii_media_status = IFM_AVALID;
280 mii->mii_media_active = IFM_ETHER;
281
282 sr = PHY_READ(sc, TRUEPHY_SR);
283 bmcr = PHY_READ(sc, MII_BMCR);
284
285 bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
286 if (bmsr & BMSR_LINK)
287 mii->mii_media_status |= IFM_ACTIVE;
288
289 if (bmcr & BMCR_AUTOEN) {
290 if ((bmsr & BMSR_ACOMP) == 0) {
291 mii->mii_media_active |= IFM_NONE;
292 return;
293 }
294 }
295
296 switch (sr & TRUEPHY_SR_SPD_MASK) {
297 case TRUEPHY_SR_SPD_1000T:
298 mii->mii_media_active |= IFM_1000_T;
299 break;
300 case TRUEPHY_SR_SPD_100TX:
301 mii->mii_media_active |= IFM_100_TX;
302 break;
303 case TRUEPHY_SR_SPD_10T:
304 mii->mii_media_active |= IFM_10_T;
305 break;
306 default:
307 /* XXX will this ever happen? */
308 printf("invalid media SR %#x\n", sr);
309 mii->mii_media_active |= IFM_NONE;
310 return;
311 }
312
313 if (sr & TRUEPHY_SR_FDX)
314 mii->mii_media_active |= IFM_FDX | mii_phy_flowstatus(sc);
315 else
316 mii->mii_media_active |= IFM_HDX;
317 }
318