ipgphy.c revision 1.4
1 /* $OpenBSD: ipgphy.c,v 1.19 2015/07/19 06:28:12 yuo Exp $ */ 2 3 /*- 4 * Copyright (c) 2006, Pyun YongHyeon <yongari (at) FreeBSD.org> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice unmodified, this list of conditions, and the following 12 * disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 */ 30 31 /* 32 * Driver for the IC Plus IP1000A/IP1001 10/100/1000 PHY. 33 */ 34 #include <sys/cdefs.h> 35 __KERNEL_RCSID(0, "$NetBSD: ipgphy.c,v 1.4 2019/11/14 09:06:21 msaitoh Exp $"); 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/kernel.h> 40 #include <sys/device.h> 41 #include <sys/socket.h> 42 #include <sys/errno.h> 43 44 #include <net/if.h> 45 #include <net/if_media.h> 46 47 #include <dev/mii/mii.h> 48 #include <dev/mii/miivar.h> 49 #include <dev/mii/miidevs.h> 50 51 #include <dev/mii/ipgphyreg.h> 52 53 #include <dev/pci/if_stgereg.h> 54 55 static int ipgphy_match(device_t, cfdata_t, void *); 56 static void ipgphy_attach(device_t, device_t, void *); 57 58 CFATTACH_DECL_NEW(ipgphy, sizeof(struct mii_softc), 59 ipgphy_match, ipgphy_attach, mii_phy_detach, mii_phy_activate); 60 61 static int ipgphy_service(struct mii_softc *, struct mii_data *, int); 62 static void ipgphy_status(struct mii_softc *); 63 static int ipgphy_mii_phy_auto(struct mii_softc *, u_int); 64 static void ipgphy_load_dspcode(struct mii_softc *); 65 static void ipgphy_reset(struct mii_softc *); 66 67 static const struct mii_phy_funcs ipgphy_funcs = { 68 ipgphy_service, ipgphy_status, ipgphy_reset, 69 }; 70 71 static const struct mii_phydesc ipgphys[] = { 72 MII_PHY_DESC(xxICPLUS, IP1000A), 73 MII_PHY_DESC(xxICPLUS, IP1001), 74 MII_PHY_END, 75 }; 76 77 static int 78 ipgphy_match(device_t parent, cfdata_t match, void *aux) 79 { 80 struct mii_attach_args *ma = aux; 81 82 if (mii_phy_match(ma, ipgphys) != NULL) 83 return 10; 84 85 return 0; 86 } 87 88 static void 89 ipgphy_attach(device_t parent, device_t self, void *aux) 90 { 91 struct mii_softc *sc = device_private(self); 92 struct mii_attach_args *ma = aux; 93 struct mii_data *mii = ma->mii_data; 94 const struct mii_phydesc *mpd; 95 96 mpd = mii_phy_match(ma, ipgphys); 97 aprint_naive(": Media interface\n"); 98 aprint_normal(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 99 100 sc->mii_dev = self; 101 sc->mii_inst = mii->mii_instance; 102 sc->mii_phy = ma->mii_phyno; 103 sc->mii_mpd_oui = MII_OUI(ma->mii_id1, ma->mii_id2); 104 sc->mii_mpd_model = MII_MODEL(ma->mii_id2); 105 sc->mii_mpd_rev = MII_REV(ma->mii_id2); 106 sc->mii_funcs = &ipgphy_funcs; 107 sc->mii_pdata = mii; 108 sc->mii_flags = ma->mii_flags; 109 110 sc->mii_flags |= MIIF_NOISOLATE; 111 sc->mii_anegticks = MII_ANEGTICKS_GIGE; 112 113 PHY_RESET(sc); 114 115 PHY_READ(sc, MII_BMSR, &sc->mii_capabilities); 116 sc->mii_capabilities &= ma->mii_capmask; 117 //sc->mii_capabilities &= ~BMSR_ANEG; 118 if (sc->mii_capabilities & BMSR_EXTSTAT) 119 PHY_READ(sc, MII_EXTSR, &sc->mii_extcapabilities); 120 121 mii_phy_add_media(sc); 122 aprint_normal("\n"); 123 } 124 125 static int 126 ipgphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 127 { 128 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 129 uint16_t reg, speed; 130 131 switch (cmd) { 132 case MII_POLLSTAT: 133 /* If we're not polling our PHY instance, just return. */ 134 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 135 return 0; 136 break; 137 138 case MII_MEDIACHG: 139 /* 140 * If the media indicates a different PHY instance, 141 * isolate ourselves. 142 */ 143 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 144 PHY_READ(sc, MII_BMCR, ®); 145 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 146 return 0; 147 } 148 149 /* If the interface is not up, don't do anything. */ 150 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 151 break; 152 153 PHY_RESET(sc); 154 155 switch (IFM_SUBTYPE(ife->ifm_media)) { 156 case IFM_AUTO: 157 case IFM_1000_T: 158 /* 159 * This device is required to do auto negotiation 160 * on 1000BASE-T. 161 */ 162 (void)ipgphy_mii_phy_auto(sc, ife->ifm_media); 163 goto done; 164 break; 165 166 case IFM_100_TX: 167 speed = BMCR_S100; 168 break; 169 170 case IFM_10_T: 171 speed = BMCR_S10; 172 break; 173 174 default: 175 return EINVAL; 176 } 177 178 if ((ife->ifm_media & IFM_FDX) != 0) 179 speed |= BMCR_FDX; 180 181 PHY_WRITE(sc, MII_100T2CR, 0); 182 PHY_WRITE(sc, MII_BMCR, speed); 183 done: 184 break; 185 186 case MII_TICK: 187 /* If we're not currently selected, just return. */ 188 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 189 return 0; 190 191 /* Is the interface even up? */ 192 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 193 return 0; 194 195 /* Only used for autonegotiation. */ 196 if ((IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) && 197 (IFM_SUBTYPE(ife->ifm_media) != IFM_1000_T)) { 198 sc->mii_ticks = 0; 199 break; 200 } 201 202 /* 203 * Check to see if we have link. If we do, we don't 204 * need to restart the autonegotiation process. Read 205 * the BMSR twice in case it's latched. 206 */ 207 PHY_READ(sc, MII_BMSR, ®); 208 PHY_READ(sc, MII_BMSR, ®); 209 if (reg & BMSR_LINK) { 210 /* 211 * Reset autonegotiation timer to 0 in case the link 212 * goes down in the next tick. 213 */ 214 sc->mii_ticks = 0; 215 /* See above. */ 216 break; 217 } 218 219 /* Announce link loss right after it happens */ 220 if (sc->mii_ticks++ == 0) 221 break; 222 223 /* Only retry autonegotiation every mii_anegticks seconds. */ 224 if (sc->mii_ticks <= sc->mii_anegticks) 225 break; 226 227 sc->mii_ticks = 0; 228 ipgphy_mii_phy_auto(sc, ife->ifm_media); 229 break; 230 } 231 232 /* Update the media status. */ 233 ipgphy_status(sc); 234 235 /* Callback if something changed. */ 236 mii_phy_update(sc, cmd); 237 return 0; 238 } 239 240 static void 241 ipgphy_status(struct mii_softc *sc) 242 { 243 struct mii_data *mii = sc->mii_pdata; 244 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 245 uint16_t bmsr, bmcr, stat, gtsr; 246 247 /* For IP1000A, use generic way */ 248 if (sc->mii_mpd_model == MII_MODEL_xxICPLUS_IP1000A) { 249 ukphy_status(sc); 250 return; 251 } 252 253 mii->mii_media_status = IFM_AVALID; 254 mii->mii_media_active = IFM_ETHER; 255 256 PHY_READ(sc, MII_BMSR, &bmsr); 257 PHY_READ(sc, MII_BMSR, &bmsr); 258 if (bmsr & BMSR_LINK) 259 mii->mii_media_status |= IFM_ACTIVE; 260 261 PHY_READ(sc, MII_BMCR, &bmcr); 262 if (bmcr & BMCR_LOOP) 263 mii->mii_media_active |= IFM_LOOP; 264 265 if (bmcr & BMCR_AUTOEN) { 266 if ((bmsr & BMSR_ACOMP) == 0) { 267 /* Erg, still trying, I guess... */ 268 mii->mii_media_active |= IFM_NONE; 269 return; 270 } 271 272 PHY_READ(sc, IPGPHY_LSR, &stat); 273 switch (stat & IPGPHY_LSR_SPEED_MASK) { 274 case IPGPHY_LSR_SPEED_10: 275 mii->mii_media_active |= IFM_10_T; 276 break; 277 case IPGPHY_LSR_SPEED_100: 278 mii->mii_media_active |= IFM_100_TX; 279 break; 280 case IPGPHY_LSR_SPEED_1000: 281 mii->mii_media_active |= IFM_1000_T; 282 break; 283 default: 284 mii->mii_media_active |= IFM_NONE; 285 return; 286 } 287 288 if (stat & IPGPHY_LSR_FULL_DUPLEX) 289 mii->mii_media_active |= IFM_FDX; 290 else 291 mii->mii_media_active |= IFM_HDX; 292 293 if (mii->mii_media_active & IFM_FDX) 294 mii->mii_media_active |= mii_phy_flowstatus(sc); 295 296 if (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T) { 297 PHY_READ(sc, MII_100T2SR, >sr); 298 if (gtsr & GTSR_MS_RES) 299 mii->mii_media_active |= IFM_ETH_MASTER; 300 } 301 } else 302 mii->mii_media_active = ife->ifm_media; 303 } 304 305 static int 306 ipgphy_mii_phy_auto(struct mii_softc *sc, u_int media) 307 { 308 uint16_t reg = 0; 309 u_int subtype = IFM_SUBTYPE(media); 310 311 /* XXX Is it requreid ? */ 312 if (sc->mii_mpd_model == MII_MODEL_xxICPLUS_IP1001) { 313 PHY_READ(sc, MII_ANAR, ®); 314 reg &= ~(ANAR_PAUSE_SYM | ANAR_PAUSE_ASYM); 315 reg |= ANAR_NP; 316 } 317 318 if (subtype == IFM_AUTO) 319 reg |= ANAR_10 | ANAR_10_FD | ANAR_TX | ANAR_TX_FD; 320 321 if (sc->mii_flags & MIIF_DOPAUSE) 322 reg |= ANAR_PAUSE_SYM | ANAR_PAUSE_ASYM; 323 324 PHY_WRITE(sc, MII_ANAR, reg | ANAR_CSMA); 325 326 if (subtype == IFM_AUTO) 327 reg = GTCR_ADV_1000TFDX | GTCR_ADV_1000THDX; 328 else if (subtype == IFM_1000_T) { 329 if ((media & IFM_FDX) != 0) 330 reg = GTCR_ADV_1000TFDX; 331 else 332 reg = GTCR_ADV_1000THDX; 333 } else 334 reg = 0; 335 336 PHY_WRITE(sc, MII_100T2CR, reg); 337 338 PHY_WRITE(sc, MII_BMCR, BMCR_FDX | BMCR_AUTOEN | BMCR_STARTNEG); 339 340 return EJUSTRETURN; 341 } 342 343 static void 344 ipgphy_load_dspcode(struct mii_softc *sc) 345 { 346 PHY_WRITE(sc, 31, 0x0001); 347 PHY_WRITE(sc, 27, 0x01e0); 348 PHY_WRITE(sc, 31, 0x0002); 349 PHY_WRITE(sc, 27, 0xeb8e); 350 PHY_WRITE(sc, 31, 0x0000); 351 PHY_WRITE(sc, 30, 0x005e); 352 PHY_WRITE(sc, 9, 0x0700); 353 354 DELAY(50); 355 } 356 357 static void 358 ipgphy_reset(struct mii_softc *sc) 359 { 360 struct ifnet *ifp = sc->mii_pdata->mii_ifp; 361 uint16_t reg; 362 363 mii_phy_reset(sc); 364 365 /* Clear autoneg/full-duplex as we don't want it after reset */ 366 PHY_READ(sc, MII_BMCR, ®); 367 reg &= ~(BMCR_AUTOEN | BMCR_FDX); 368 PHY_WRITE(sc, MII_BMCR, reg); 369 370 if (sc->mii_mpd_model == MII_MODEL_xxICPLUS_IP1000A && 371 strcmp(ifp->if_xname, "stge") == 0) { 372 struct stge_softc *stge_sc = ifp->if_softc; 373 if (stge_sc->sc_rev >= 0x40 && stge_sc->sc_rev <= 0x4e) 374 ipgphy_load_dspcode(sc); 375 } 376 } 377
Indexes created Sat Oct 25 10:09:55 GMT 2025