makphy.c revision 1.28.18.1
1 /* $NetBSD: makphy.c,v 1.28.18.1 2011/01/07 02:20:27 matt 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 * 3. All advertising materials mentioning features or use of this software 45 * must display the following acknowledgement: 46 * This product includes software developed by Manuel Bouyer. 47 * 4. The name of the author may not be used to endorse or promote products 48 * derived from this software without specific prior written permission. 49 * 50 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 51 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 52 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 53 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 54 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 55 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 56 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 57 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 58 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 59 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 60 */ 61 62 /* 63 * Driver for the Marvell 88E1000 ``Alaska'' 10/100/1000 PHY. 64 */ 65 66 #include <sys/cdefs.h> 67 __KERNEL_RCSID(0, "$NetBSD: makphy.c,v 1.28.18.1 2011/01/07 02:20:27 matt Exp $"); 68 69 #include <sys/param.h> 70 #include <sys/systm.h> 71 #include <sys/kernel.h> 72 #include <sys/device.h> 73 #include <sys/socket.h> 74 #include <sys/errno.h> 75 76 #include <net/if.h> 77 #include <net/if_media.h> 78 79 #include <dev/mii/mii.h> 80 #include <dev/mii/miivar.h> 81 #include <dev/mii/miidevs.h> 82 83 #include <dev/mii/makphyreg.h> 84 85 static int makphymatch(device_t, cfdata_t, void *); 86 static void makphyattach(device_t, device_t, void *); 87 88 CFATTACH_DECL_NEW(makphy, sizeof(struct mii_softc), 89 makphymatch, makphyattach, mii_phy_detach, mii_phy_activate); 90 91 static int makphy_service(struct mii_softc *, struct mii_data *, int); 92 static void makphy_status(struct mii_softc *); 93 static void makphy_reset(struct mii_softc *); 94 95 static const struct mii_phy_funcs makphy_funcs = { 96 makphy_service, makphy_status, makphy_reset, 97 }; 98 99 static const struct mii_phydesc makphys[] = { 100 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1000_3, 101 MII_STR_xxMARVELL_E1000_3 }, 102 103 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1000_5, 104 MII_STR_xxMARVELL_E1000_5 }, 105 106 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1011, 107 MII_STR_xxMARVELL_E1011 }, 108 109 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1111, 110 MII_STR_xxMARVELL_E1111 }, 111 112 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1116, 113 MII_STR_xxMARVELL_E1116 }, 114 115 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1145, 116 MII_STR_xxMARVELL_E1145 }, 117 118 { 0, 0, 119 NULL }, 120 }; 121 122 static int 123 makphymatch(device_t parent, cfdata_t match, void *aux) 124 { 125 struct mii_attach_args *ma = aux; 126 127 if (mii_phy_match(ma, makphys) != NULL) 128 return (10); 129 130 return (0); 131 } 132 133 static void 134 makphyattach(device_t parent, device_t self, void *aux) 135 { 136 struct mii_softc *sc = device_private(self); 137 struct mii_attach_args *ma = aux; 138 struct mii_data *mii = ma->mii_data; 139 const struct mii_phydesc *mpd; 140 141 mpd = mii_phy_match(ma, makphys); 142 aprint_naive(": Media interface\n"); 143 aprint_normal(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 144 145 sc->mii_dev = self; 146 sc->mii_inst = mii->mii_instance; 147 sc->mii_phy = ma->mii_phyno; 148 sc->mii_funcs = &makphy_funcs; 149 sc->mii_pdata = mii; 150 sc->mii_flags = ma->mii_flags; 151 sc->mii_anegticks = MII_ANEGTICKS; 152 153 PHY_RESET(sc); 154 155 sc->mii_capabilities = 156 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 157 if (sc->mii_capabilities & BMSR_EXTSTAT) 158 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 159 160 aprint_normal_dev(self, ""); 161 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 162 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 163 aprint_error("no media present"); 164 else 165 mii_phy_add_media(sc); 166 aprint_normal("\n"); 167 168 if (!pmf_device_register(self, NULL, mii_phy_resume)) 169 aprint_error_dev(self, "couldn't establish power handler\n"); 170 } 171 172 static void 173 makphy_reset(struct mii_softc *sc) 174 { 175 uint16_t pscr; 176 177 /* Assert CRS on transmit */ 178 pscr = PHY_READ(sc, MII_MAKPHY_PSCR); 179 PHY_WRITE(sc, MII_MAKPHY_PSCR, pscr | PSCR_CRS_ON_TX); 180 181 mii_phy_reset(sc); 182 } 183 184 static int 185 makphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 186 { 187 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 188 int reg; 189 190 switch (cmd) { 191 case MII_POLLSTAT: 192 /* 193 * If we're not polling our PHY instance, just return. 194 */ 195 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 196 return (0); 197 break; 198 199 case MII_MEDIACHG: 200 /* 201 * If the media indicates a different PHY instance, 202 * isolate ourselves. 203 */ 204 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 205 reg = PHY_READ(sc, MII_BMCR); 206 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 207 return (0); 208 } 209 210 /* 211 * If the interface is not up, don't do anything. 212 */ 213 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 214 break; 215 216 mii_phy_setmedia(sc); 217 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) { 218 /* 219 * when not in auto mode, we need to restart nego 220 * anyway, or a switch from a fixed mode to another 221 * fixed mode may not be seen by the switch. 222 */ 223 PHY_WRITE(sc, MII_BMCR, 224 PHY_READ(sc, MII_BMCR) | BMCR_STARTNEG); 225 } 226 break; 227 228 case MII_TICK: 229 /* 230 * If we're not currently selected, just return. 231 */ 232 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 233 return (0); 234 235 if (mii_phy_tick(sc) == EJUSTRETURN) 236 return (0); 237 break; 238 239 case MII_DOWN: 240 mii_phy_down(sc); 241 return (0); 242 } 243 244 /* Update the media status. */ 245 mii_phy_status(sc); 246 247 /* Callback if something changed. */ 248 mii_phy_update(sc, cmd); 249 return (0); 250 } 251 252 static void 253 makphy_status(struct mii_softc *sc) 254 { 255 struct mii_data *mii = sc->mii_pdata; 256 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 257 int bmcr, pssr, gtsr; 258 259 mii->mii_media_status = IFM_AVALID; 260 mii->mii_media_active = IFM_ETHER; 261 262 pssr = PHY_READ(sc, MII_MAKPHY_PSSR); 263 264 if (pssr & PSSR_LINK) 265 mii->mii_media_status |= IFM_ACTIVE; 266 267 bmcr = PHY_READ(sc, MII_BMCR); 268 if (bmcr & BMCR_ISO) { 269 mii->mii_media_active |= IFM_NONE; 270 mii->mii_media_status = 0; 271 return; 272 } 273 274 if (bmcr & BMCR_LOOP) 275 mii->mii_media_active |= IFM_LOOP; 276 277 if (bmcr & BMCR_AUTOEN) { 278 /* 279 * The media status bits are only valid of autonegotiation 280 * has completed (or it's disabled). 281 */ 282 if ((pssr & PSSR_RESOLVED) == 0) { 283 /* Erg, still trying, I guess... */ 284 mii->mii_media_active |= IFM_NONE; 285 return; 286 } 287 288 switch (PSSR_SPEED_get(pssr)) { 289 case SPEED_1000: 290 mii->mii_media_active |= IFM_1000_T; 291 gtsr = PHY_READ(sc, MII_100T2SR); 292 if (gtsr & GTSR_MS_RES) 293 mii->mii_media_active |= IFM_ETH_MASTER; 294 break; 295 296 case SPEED_100: 297 mii->mii_media_active |= IFM_100_TX; 298 break; 299 300 case SPEED_10: 301 mii->mii_media_active |= IFM_10_T; 302 break; 303 304 default: 305 mii->mii_media_active |= IFM_NONE; 306 mii->mii_media_status = 0; 307 return; 308 } 309 310 if (pssr & PSSR_DUPLEX) 311 mii->mii_media_active |= 312 IFM_FDX | mii_phy_flowstatus(sc); 313 } else 314 mii->mii_media_active = ife->ifm_media; 315 } 316
Indexes created Mon Oct 27 08:10:08 GMT 2025