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 139 truephy_probe(device_t dev) 140 { 141 142 return (mii_phy_dev_probe(dev, truephys, BUS_PROBE_DEFAULT)); 143 } 144 145 static int 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 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 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 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