1/*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2019 Rubicon Communications, LLC (Netgate) 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, and by Frank van der Linden. 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#include <sys/cdefs.h> 34/* Driver for the Marvell 88e151x gigabit ethernet PHY. */ 35 36#include <sys/param.h> 37#include <sys/systm.h> 38#include <sys/kernel.h> 39#include <sys/socket.h> 40#include <sys/errno.h> 41#include <sys/module.h> 42#include <sys/bus.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/mv88e151xreg.h> 50#include "miidevs.h" 51 52#include "miibus_if.h" 53 54static int mv88e151x_probe(device_t); 55static int mv88e151x_attach(device_t); 56 57static device_method_t mv88e151x_methods[] = { 58 /* device interface */ 59 DEVMETHOD(device_probe, mv88e151x_probe), 60 DEVMETHOD(device_attach, mv88e151x_attach), 61 DEVMETHOD(device_detach, mii_phy_detach), 62 DEVMETHOD(device_shutdown, bus_generic_shutdown), 63 DEVMETHOD_END 64}; 65 66static driver_t mv88e151x_driver = { 67 "mv88e151x", 68 mv88e151x_methods, 69 sizeof(struct mii_softc) 70}; 71 72DRIVER_MODULE(mv88e151x, miibus, mv88e151x_driver, 0, 0); 73 74static int mv88e151x_service(struct mii_softc *, struct mii_data *, int); 75static void mv88e151x_status(struct mii_softc *); 76 77static const struct mii_phydesc mv88e151xphys[] = { 78 MII_PHY_DESC(xxMARVELL, E1512), 79 MII_PHY_END 80}; 81 82static const struct mii_phy_funcs mv88e151x_funcs = { 83 mv88e151x_service, 84 mv88e151x_status, 85 mii_phy_reset 86}; 87 88static int 89mv88e151x_probe(device_t dev) 90{ 91 92 return (mii_phy_dev_probe(dev, mv88e151xphys, BUS_PROBE_DEFAULT)); 93} 94 95static int 96mv88e151x_attach(device_t dev) 97{ 98 const struct mii_attach_args *ma; 99 struct mii_softc *sc; 100 uint32_t cop_cap, cop_extcap; 101 102 sc = device_get_softc(dev); 103 ma = device_get_ivars(dev); 104 105 mii_phy_dev_attach(dev, MIIF_NOMANPAUSE, &mv88e151x_funcs, 0); 106 107 PHY_RESET(sc); 108 sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & sc->mii_capmask; 109 cop_cap = sc->mii_capabilities; 110 if (sc->mii_capabilities & BMSR_EXTSTAT) { 111 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 112 cop_extcap = sc->mii_extcapabilities; 113 } 114 device_printf(dev, " "); 115 if (MII_MODEL(ma->mii_id2) == MII_MODEL_xxMARVELL_E1512) 116 sc->mii_capabilities &= ~BMSR_ANEG; 117 mii_phy_add_media(sc); 118 if (MII_MODEL(ma->mii_id2) == MII_MODEL_xxMARVELL_E1512) { 119 /* Switch the fiber PHY and add the supported media. */ 120 PHY_WRITE(sc, MV88E151X_PAGE, MV88E151X_PAGE_FIBER); 121 PHY_RESET(sc); 122 sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & sc->mii_capmask; 123 if (sc->mii_capabilities & BMSR_EXTSTAT) 124 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 125 sc->mii_flags |= MIIF_NOISOLATE; 126 printf(", "); 127 mii_phy_add_media(sc); 128 129 /* Switch back to copper PHY. */ 130 PHY_WRITE(sc, MV88E151X_PAGE, MV88E151X_PAGE_COPPER); 131 sc->mii_flags &= ~MIIF_NOISOLATE; 132 sc->mii_capabilities = cop_cap; 133 sc->mii_extcapabilities = cop_extcap; 134 } 135 printf("\n"); 136 137 MIIBUS_MEDIAINIT(sc->mii_dev); 138 139 mii_phy_setmedia(sc); 140 141 /* Enable the fiber PHY auto negotiation. */ 142 if (MII_MODEL(ma->mii_id2) == MII_MODEL_xxMARVELL_E1512) { 143 PHY_WRITE(sc, MV88E151X_PAGE, MV88E151X_PAGE_FIBER); 144 PHY_WRITE(sc, MII_BMCR, BMCR_RESET | BMCR_AUTOEN | 145 BMCR_STARTNEG | BMCR_FDX | BMCR_S1000); 146 PHY_WRITE(sc, MV88E151X_PAGE, MV88E151X_PAGE_COPPER); 147 } 148 149 return (0); 150} 151 152static int 153mv88e151x_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 154{ 155 switch (cmd) { 156 case MII_POLLSTAT: 157 break; 158 159 case MII_MEDIACHG: 160 mii_phy_setmedia(sc); 161 break; 162 163 case MII_TICK: 164 if (mii_phy_tick(sc) == EJUSTRETURN) 165 return (0); 166 break; 167 } 168 169 /* Update the media status. */ 170 PHY_STATUS(sc); 171 172 /* Callback if something changed. */ 173 mii_phy_update(sc, cmd); 174 return (0); 175} 176 177static void 178mv88e151x_fiber_status(struct mii_softc *phy) 179{ 180 struct mii_data *mii = phy->mii_pdata; 181 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 182 int bmsr, bmcr, anlpar; //, gtcr, gtsr; 183 uint32_t reg; 184 185 mii->mii_media_status = IFM_AVALID; 186 mii->mii_media_active = IFM_ETHER; 187 188 /* Switch to the fiber PHY. */ 189 PHY_WRITE(phy, MV88E151X_PAGE, MV88E151X_PAGE_FIBER); 190 191 reg = PHY_READ(phy, MV88E151X_FIBER_STATUS); 192 bmsr = PHY_READ(phy, MII_BMSR) | PHY_READ(phy, MII_BMSR); 193 if (reg & MV88E151X_STATUS_LINK) 194 mii->mii_media_status |= IFM_ACTIVE; 195 bmcr = PHY_READ(phy, MII_BMCR); 196 if (bmcr & BMCR_ISO) { 197 mii->mii_media_active |= IFM_NONE; 198 mii->mii_media_status = 0; 199 PHY_WRITE(phy, MV88E151X_PAGE, MV88E151X_PAGE_COPPER); 200 return; 201 } 202 203 if (bmcr & BMCR_LOOP) 204 mii->mii_media_active |= IFM_LOOP; 205 206 if (bmcr & BMCR_AUTOEN) { 207 /* 208 * NWay autonegotiation takes the highest-order common 209 * bit of the ANAR and ANLPAR (i.e. best media advertised 210 * both by us and our link partner). 211 */ 212 if ((bmsr & BMSR_ACOMP) == 0) { 213 /* Erg, still trying, I guess... */ 214 mii->mii_media_active |= IFM_NONE; 215 PHY_WRITE(phy, MV88E151X_PAGE, MV88E151X_PAGE_COPPER); 216 return; 217 } 218 219 anlpar = PHY_READ(phy, MII_ANAR) & PHY_READ(phy, MII_ANLPAR); 220 if (anlpar & ANLPAR_X_FD) 221 mii->mii_media_active |= IFM_1000_SX | IFM_FDX; 222 else if (anlpar & ANLPAR_X_HD) 223 mii->mii_media_active |= IFM_1000_SX | IFM_HDX; 224 else if (reg & MV88E151X_STATUS_LINK && 225 reg & MV88E151X_STATUS_SYNC && 226 (reg & MV88E151X_STATUS_ENERGY) == 0) { 227 if ((reg & MV88E151X_STATUS_SPEED_MASK) == 228 MV88E151X_STATUS_SPEED_1000) 229 mii->mii_media_active |= IFM_1000_SX; 230 else if ((reg & MV88E151X_STATUS_SPEED_MASK) == 231 MV88E151X_STATUS_SPEED_100) 232 mii->mii_media_active |= IFM_100_FX; 233 else 234 mii->mii_media_active |= IFM_NONE; 235 if ((reg & MV88E151X_STATUS_SPEED_MASK) != 0 && 236 (reg & MV88E151X_STATUS_FDX)) 237 mii->mii_media_active |= IFM_FDX; 238 } else 239 mii->mii_media_active |= IFM_NONE; 240 241 if ((mii->mii_media_active & IFM_NONE) == 0) 242 phy->mii_flags |= MIIF_IS_1000X; 243 if ((mii->mii_media_active & IFM_FDX) != 0) 244 mii->mii_media_active |= mii_phy_flowstatus(phy); 245 } else 246 mii->mii_media_active = ife->ifm_media; 247 248 if ((mii->mii_media_status & IFM_ACTIVE) == 0) 249 phy->mii_flags &= ~MIIF_IS_1000X; 250 251 /* Switch back to copper PHY. */ 252 PHY_WRITE(phy, MV88E151X_PAGE, MV88E151X_PAGE_COPPER); 253} 254 255static void 256mv88e151x_status(struct mii_softc *phy) 257{ 258 struct mii_data *mii = phy->mii_pdata; 259 260 mv88e151x_fiber_status(phy); 261 if (mii->mii_media_status & IFM_ACTIVE) 262 return; 263 ukphy_status(phy); 264} 265