icsphy.c revision 1.52 1 1.52 msaitoh /* $NetBSD: icsphy.c,v 1.52 2019/02/13 08:42:26 msaitoh Exp $ */
2 1.1 thorpej
3 1.1 thorpej /*-
4 1.19 thorpej * Copyright (c) 1998, 1999, 2000 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 1.35 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 1.32 msaitoh * driver for Integrated Circuit Systems' ICS1889-1893 ethernet 10/100 PHY
59 1.1 thorpej * datasheet from www.icst.com
60 1.1 thorpej */
61 1.24 lukem
62 1.24 lukem #include <sys/cdefs.h>
63 1.52 msaitoh __KERNEL_RCSID(0, "$NetBSD: icsphy.c,v 1.52 2019/02/13 08:42:26 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 1.1 thorpej
71 1.1 thorpej #include <net/if.h>
72 1.1 thorpej #include <net/if_media.h>
73 1.1 thorpej
74 1.1 thorpej #include <dev/mii/mii.h>
75 1.1 thorpej #include <dev/mii/miivar.h>
76 1.1 thorpej #include <dev/mii/miidevs.h>
77 1.1 thorpej
78 1.1 thorpej #include <dev/mii/icsphyreg.h>
79 1.1 thorpej
80 1.46 xtraeme static int icsphymatch(device_t, cfdata_t, void *);
81 1.46 xtraeme static void icsphyattach(device_t, device_t, void *);
82 1.1 thorpej
83 1.46 xtraeme CFATTACH_DECL_NEW(icsphy, sizeof(struct mii_softc),
84 1.30 thorpej icsphymatch, icsphyattach, mii_phy_detach, mii_phy_activate);
85 1.1 thorpej
86 1.34 thorpej static int icsphy_service(struct mii_softc *, struct mii_data *, int);
87 1.34 thorpej static void icsphy_status(struct mii_softc *);
88 1.34 thorpej static void icsphy_reset(struct mii_softc *);
89 1.19 thorpej
90 1.34 thorpej static const struct mii_phy_funcs icsphy_funcs = {
91 1.19 thorpej icsphy_service, icsphy_status, icsphy_reset,
92 1.19 thorpej };
93 1.1 thorpej
94 1.34 thorpej static const struct mii_phydesc icsphys[] = {
95 1.32 msaitoh { MII_OUI_ICS, MII_MODEL_ICS_1889,
96 1.32 msaitoh MII_STR_ICS_1889 },
97 1.32 msaitoh
98 1.22 thorpej { MII_OUI_ICS, MII_MODEL_ICS_1890,
99 1.22 thorpej MII_STR_ICS_1890 },
100 1.25 wiz
101 1.32 msaitoh { MII_OUI_ICS, MII_MODEL_ICS_1892,
102 1.32 msaitoh MII_STR_ICS_1892 },
103 1.32 msaitoh
104 1.25 wiz { MII_OUI_ICS, MII_MODEL_ICS_1893,
105 1.25 wiz MII_STR_ICS_1893 },
106 1.22 thorpej
107 1.52 msaitoh { MII_OUI_ICS, MII_MODEL_ICS_1893C,
108 1.52 msaitoh MII_STR_ICS_1893C },
109 1.52 msaitoh
110 1.22 thorpej { 0, 0,
111 1.22 thorpej NULL },
112 1.22 thorpej };
113 1.22 thorpej
114 1.34 thorpej static int
115 1.46 xtraeme icsphymatch(device_t parent, cfdata_t match, void *aux)
116 1.1 thorpej {
117 1.1 thorpej struct mii_attach_args *ma = aux;
118 1.1 thorpej
119 1.22 thorpej if (mii_phy_match(ma, icsphys) != NULL)
120 1.5 thorpej return (10);
121 1.1 thorpej
122 1.1 thorpej return (0);
123 1.1 thorpej }
124 1.1 thorpej
125 1.34 thorpej static void
126 1.46 xtraeme icsphyattach(device_t parent, device_t self, void *aux)
127 1.1 thorpej {
128 1.38 thorpej struct mii_softc *sc = device_private(self);
129 1.1 thorpej struct mii_attach_args *ma = aux;
130 1.1 thorpej struct mii_data *mii = ma->mii_data;
131 1.22 thorpej const struct mii_phydesc *mpd;
132 1.1 thorpej
133 1.22 thorpej mpd = mii_phy_match(ma, icsphys);
134 1.31 thorpej aprint_naive(": Media interface\n");
135 1.31 thorpej aprint_normal(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2));
136 1.1 thorpej
137 1.46 xtraeme sc->mii_dev = self;
138 1.32 msaitoh sc->mii_mpd_model = MII_MODEL(ma->mii_id2);
139 1.6 thorpej sc->mii_inst = mii->mii_instance;
140 1.6 thorpej sc->mii_phy = ma->mii_phyno;
141 1.19 thorpej sc->mii_funcs = &icsphy_funcs;
142 1.6 thorpej sc->mii_pdata = mii;
143 1.26 thorpej sc->mii_flags = ma->mii_flags;
144 1.41 christos sc->mii_anegticks = MII_ANEGTICKS;
145 1.1 thorpej
146 1.19 thorpej PHY_RESET(sc);
147 1.1 thorpej
148 1.51 msaitoh PHY_READ(sc, MII_BMSR, &sc->mii_capabilities);
149 1.51 msaitoh sc->mii_capabilities &= ma->mii_capmask;
150 1.46 xtraeme aprint_normal_dev(self, "");
151 1.6 thorpej if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0)
152 1.31 thorpej aprint_error("no media present");
153 1.1 thorpej else
154 1.14 thorpej mii_phy_add_media(sc);
155 1.31 thorpej aprint_normal("\n");
156 1.1 thorpej }
157 1.1 thorpej
158 1.34 thorpej static int
159 1.23 thorpej icsphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
160 1.1 thorpej {
161 1.1 thorpej struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
162 1.51 msaitoh uint16_t reg;
163 1.13 thorpej
164 1.1 thorpej switch (cmd) {
165 1.1 thorpej case MII_POLLSTAT:
166 1.1 thorpej /*
167 1.1 thorpej * If we're not polling our PHY instance, just return.
168 1.1 thorpej */
169 1.6 thorpej if (IFM_INST(ife->ifm_media) != sc->mii_inst)
170 1.1 thorpej return (0);
171 1.1 thorpej break;
172 1.1 thorpej
173 1.1 thorpej case MII_MEDIACHG:
174 1.1 thorpej /*
175 1.1 thorpej * If the media indicates a different PHY instance,
176 1.1 thorpej * isolate ourselves.
177 1.1 thorpej */
178 1.6 thorpej if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
179 1.51 msaitoh PHY_READ(sc, MII_BMCR, ®);
180 1.6 thorpej PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
181 1.1 thorpej return (0);
182 1.1 thorpej }
183 1.1 thorpej
184 1.1 thorpej /*
185 1.1 thorpej * If the interface is not up, don't do anything.
186 1.1 thorpej */
187 1.1 thorpej if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
188 1.1 thorpej break;
189 1.1 thorpej
190 1.17 thorpej mii_phy_setmedia(sc);
191 1.1 thorpej break;
192 1.1 thorpej
193 1.1 thorpej case MII_TICK:
194 1.1 thorpej /*
195 1.1 thorpej * If we're not currently selected, just return.
196 1.1 thorpej */
197 1.6 thorpej if (IFM_INST(ife->ifm_media) != sc->mii_inst)
198 1.1 thorpej return (0);
199 1.1 thorpej
200 1.18 thorpej if (mii_phy_tick(sc) == EJUSTRETURN)
201 1.1 thorpej return (0);
202 1.1 thorpej break;
203 1.12 thorpej
204 1.12 thorpej case MII_DOWN:
205 1.12 thorpej mii_phy_down(sc);
206 1.12 thorpej return (0);
207 1.1 thorpej }
208 1.1 thorpej
209 1.1 thorpej /* Update the media status. */
210 1.16 thorpej mii_phy_status(sc);
211 1.1 thorpej
212 1.1 thorpej /* Callback if something changed. */
213 1.18 thorpej mii_phy_update(sc, cmd);
214 1.1 thorpej return (0);
215 1.1 thorpej }
216 1.1 thorpej
217 1.34 thorpej static void
218 1.23 thorpej icsphy_status(struct mii_softc *sc)
219 1.1 thorpej {
220 1.6 thorpej struct mii_data *mii = sc->mii_pdata;
221 1.11 thorpej struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
222 1.51 msaitoh uint16_t bmcr, qpr;
223 1.1 thorpej
224 1.1 thorpej mii->mii_media_status = IFM_AVALID;
225 1.1 thorpej mii->mii_media_active = IFM_ETHER;
226 1.1 thorpej
227 1.1 thorpej /*
228 1.1 thorpej * Don't get link from the BMSR. It's available in the QPR,
229 1.1 thorpej * and we have to read it twice to unlatch it anyhow. This
230 1.1 thorpej * gives us fewer register reads.
231 1.1 thorpej */
232 1.51 msaitoh PHY_READ(sc, MII_ICSPHY_QPR, &qpr); /* unlatch */
233 1.51 msaitoh PHY_READ(sc, MII_ICSPHY_QPR, &qpr); /* real value */
234 1.1 thorpej
235 1.1 thorpej if (qpr & QPR_LINK)
236 1.1 thorpej mii->mii_media_status |= IFM_ACTIVE;
237 1.1 thorpej
238 1.51 msaitoh PHY_READ(sc, MII_BMCR, &bmcr);
239 1.1 thorpej if (bmcr & BMCR_ISO) {
240 1.1 thorpej mii->mii_media_active |= IFM_NONE;
241 1.1 thorpej mii->mii_media_status = 0;
242 1.1 thorpej return;
243 1.1 thorpej }
244 1.1 thorpej
245 1.1 thorpej if (bmcr & BMCR_LOOP)
246 1.1 thorpej mii->mii_media_active |= IFM_LOOP;
247 1.1 thorpej
248 1.7 thorpej if (bmcr & BMCR_AUTOEN) {
249 1.7 thorpej if ((qpr & QPR_ACOMP) == 0) {
250 1.7 thorpej /* Erg, still trying, I guess... */
251 1.7 thorpej mii->mii_media_active |= IFM_NONE;
252 1.7 thorpej return;
253 1.7 thorpej }
254 1.7 thorpej if (qpr & QPR_SPEED)
255 1.7 thorpej mii->mii_media_active |= IFM_100_TX;
256 1.7 thorpej else
257 1.7 thorpej mii->mii_media_active |= IFM_10_T;
258 1.49 msaitoh
259 1.7 thorpej if (qpr & QPR_FDX)
260 1.7 thorpej mii->mii_media_active |= IFM_FDX;
261 1.49 msaitoh else
262 1.49 msaitoh mii->mii_media_active |= IFM_HDX;
263 1.8 thorpej } else
264 1.11 thorpej mii->mii_media_active = ife->ifm_media;
265 1.1 thorpej }
266 1.1 thorpej
267 1.34 thorpej static void
268 1.34 thorpej icsphy_reset(struct mii_softc *sc)
269 1.1 thorpej {
270 1.1 thorpej
271 1.6 thorpej mii_phy_reset(sc);
272 1.33 msaitoh /* set powerdown feature */
273 1.32 msaitoh switch (sc->mii_mpd_model) {
274 1.32 msaitoh case MII_MODEL_ICS_1890:
275 1.32 msaitoh case MII_MODEL_ICS_1893:
276 1.32 msaitoh PHY_WRITE(sc, MII_ICSPHY_ECR2, ECR2_100AUTOPWRDN);
277 1.32 msaitoh break;
278 1.32 msaitoh case MII_MODEL_ICS_1892:
279 1.32 msaitoh PHY_WRITE(sc, MII_ICSPHY_ECR2,
280 1.32 msaitoh ECR2_10AUTOPWRDN|ECR2_100AUTOPWRDN);
281 1.32 msaitoh break;
282 1.32 msaitoh default:
283 1.32 msaitoh /* 1889 have no ECR2 */
284 1.32 msaitoh break;
285 1.32 msaitoh }
286 1.32 msaitoh /*
287 1.32 msaitoh * There is no description that the reset do auto-negotiation in the
288 1.32 msaitoh * data sheet.
289 1.32 msaitoh */
290 1.32 msaitoh PHY_WRITE(sc, MII_BMCR, BMCR_S100|BMCR_STARTNEG|BMCR_FDX);
291 1.1 thorpej }
292