/*- * SPDX-License-Identifier: BSD-2-Clause * * Copyright (c) 2006, Pyun YongHyeon * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice unmodified, this list of conditions, and the following * disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * */ #include /* * Driver for the IC Plus IP1000A/IP1001 10/100/1000 PHY. */ #include #include #include #include #include #include #include #include #include #include #include #include #include "miidevs.h" #include #include "miibus_if.h" #include #include static int ip1000phy_probe(device_t); static int ip1000phy_attach(device_t); static device_method_t ip1000phy_methods[] = { /* device interface */ DEVMETHOD(device_probe, ip1000phy_probe), DEVMETHOD(device_attach, ip1000phy_attach), DEVMETHOD(device_detach, mii_phy_detach), DEVMETHOD(device_shutdown, bus_generic_shutdown), DEVMETHOD_END }; static driver_t ip1000phy_driver = { "ip1000phy", ip1000phy_methods, sizeof(struct mii_softc) }; DRIVER_MODULE(ip1000phy, miibus, ip1000phy_driver, 0, 0); static int ip1000phy_service(struct mii_softc *, struct mii_data *, int); static void ip1000phy_status(struct mii_softc *); static void ip1000phy_reset(struct mii_softc *); static int ip1000phy_mii_phy_auto(struct mii_softc *, int); static const struct mii_phydesc ip1000phys[] = { MII_PHY_DESC(xxICPLUS, IP1000A), MII_PHY_DESC(xxICPLUS, IP1001), MII_PHY_END }; static const struct mii_phy_funcs ip1000phy_funcs = { ip1000phy_service, ip1000phy_status, ip1000phy_reset }; static int ip1000phy_probe(device_t dev) { return (mii_phy_dev_probe(dev, ip1000phys, BUS_PROBE_DEFAULT)); } static int ip1000phy_attach(device_t dev) { struct mii_attach_args *ma; u_int flags; ma = device_get_ivars(dev); flags = MIIF_NOISOLATE | MIIF_NOMANPAUSE; if (MII_MODEL(ma->mii_id2) == MII_MODEL_xxICPLUS_IP1000A && mii_dev_mac_match(dev, "stge") && (miibus_get_flags(dev) & MIIF_MACPRIV0) != 0) flags |= MIIF_PHYPRIV0; mii_phy_dev_attach(dev, flags, &ip1000phy_funcs, 1); return (0); } static int ip1000phy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) { struct ifmedia_entry *ife = mii->mii_media.ifm_cur; uint32_t gig, reg, speed; switch (cmd) { case MII_POLLSTAT: break; case MII_MEDIACHG: PHY_RESET(sc); switch (IFM_SUBTYPE(ife->ifm_media)) { case IFM_AUTO: (void)ip1000phy_mii_phy_auto(sc, ife->ifm_media); goto done; case IFM_1000_T: /* * XXX * Manual 1000baseT setting doesn't seem to work. */ speed = IP1000PHY_BMCR_1000; break; case IFM_100_TX: speed = IP1000PHY_BMCR_100; break; case IFM_10_T: speed = IP1000PHY_BMCR_10; break; default: return (EINVAL); } if ((ife->ifm_media & IFM_FDX) != 0) { speed |= IP1000PHY_BMCR_FDX; gig = IP1000PHY_1000CR_1000T_FDX; } else gig = IP1000PHY_1000CR_1000T; if (IFM_SUBTYPE(ife->ifm_media) == IFM_1000_T) { gig |= IP1000PHY_1000CR_MASTER | IP1000PHY_1000CR_MANUAL; if ((ife->ifm_media & IFM_ETH_MASTER) != 0) gig |= IP1000PHY_1000CR_MMASTER; } else gig = 0; PHY_WRITE(sc, IP1000PHY_MII_1000CR, gig); PHY_WRITE(sc, IP1000PHY_MII_BMCR, speed); done: break; case MII_TICK: /* * Only used for autonegotiation. */ if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) { sc->mii_ticks = 0; break; } /* * check for link. */ reg = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR); if (reg & BMSR_LINK) { sc->mii_ticks = 0; break; } /* Announce link loss right after it happens */ if (sc->mii_ticks++ == 0) break; /* * Only retry autonegotiation every mii_anegticks seconds. */ if (sc->mii_ticks <= sc->mii_anegticks) break; sc->mii_ticks = 0; ip1000phy_mii_phy_auto(sc, ife->ifm_media); break; } /* Update the media status. */ PHY_STATUS(sc); /* Callback if something changed. */ mii_phy_update(sc, cmd); return (0); } static void ip1000phy_status(struct mii_softc *sc) { struct mii_data *mii = sc->mii_pdata; uint32_t bmsr, bmcr, stat; mii->mii_media_status = IFM_AVALID; mii->mii_media_active = IFM_ETHER; bmsr = PHY_READ(sc, IP1000PHY_MII_BMSR) | PHY_READ(sc, IP1000PHY_MII_BMSR); if ((bmsr & IP1000PHY_BMSR_LINK) != 0) mii->mii_media_status |= IFM_ACTIVE; bmcr = PHY_READ(sc, IP1000PHY_MII_BMCR); if ((bmcr & IP1000PHY_BMCR_LOOP) != 0) mii->mii_media_active |= IFM_LOOP; if ((bmcr & IP1000PHY_BMCR_AUTOEN) != 0) { if ((bmsr & IP1000PHY_BMSR_ANEGCOMP) == 0) { /* Erg, still trying, I guess... */ mii->mii_media_active |= IFM_NONE; return; } } if (sc->mii_mpd_model == MII_MODEL_xxICPLUS_IP1001) { stat = PHY_READ(sc, IP1000PHY_LSR); switch (stat & IP1000PHY_LSR_SPEED_MASK) { case IP1000PHY_LSR_SPEED_10: mii->mii_media_active |= IFM_10_T; break; case IP1000PHY_LSR_SPEED_100: mii->mii_media_active |= IFM_100_TX; break; case IP1000PHY_LSR_SPEED_1000: mii->mii_media_active |= IFM_1000_T; break; default: mii->mii_media_active |= IFM_NONE; return; } if ((stat & IP1000PHY_LSR_FULL_DUPLEX) != 0) mii->mii_media_active |= IFM_FDX; else mii->mii_media_active |= IFM_HDX; } else { stat = PHY_READ(sc, STGE_PhyCtrl); switch (PC_LinkSpeed(stat)) { case PC_LinkSpeed_Down: mii->mii_media_active |= IFM_NONE; return; case PC_LinkSpeed_10: mii->mii_media_active |= IFM_10_T; break; case PC_LinkSpeed_100: mii->mii_media_active |= IFM_100_TX; break; case PC_LinkSpeed_1000: mii->mii_media_active |= IFM_1000_T; break; default: mii->mii_media_active |= IFM_NONE; return; } if ((stat & PC_PhyDuplexStatus) != 0) mii->mii_media_active |= IFM_FDX; else mii->mii_media_active |= IFM_HDX; } if ((mii->mii_media_active & IFM_FDX) != 0) mii->mii_media_active |= mii_phy_flowstatus(sc); if ((mii->mii_media_active & IFM_1000_T) != 0) { stat = PHY_READ(sc, IP1000PHY_MII_1000SR); if ((stat & IP1000PHY_1000SR_MASTER) != 0) mii->mii_media_active |= IFM_ETH_MASTER; } } static int ip1000phy_mii_phy_auto(struct mii_softc *sc, int media) { uint32_t reg; reg = 0; if (sc->mii_mpd_model == MII_MODEL_xxICPLUS_IP1001) { reg = PHY_READ(sc, IP1000PHY_MII_ANAR); reg &= ~(IP1000PHY_ANAR_PAUSE | IP1000PHY_ANAR_APAUSE); reg |= IP1000PHY_ANAR_NP; } reg |= IP1000PHY_ANAR_10T | IP1000PHY_ANAR_10T_FDX | IP1000PHY_ANAR_100TX | IP1000PHY_ANAR_100TX_FDX; if ((media & IFM_FLOW) != 0 || (sc->mii_flags & MIIF_FORCEPAUSE) != 0) reg |= IP1000PHY_ANAR_PAUSE | IP1000PHY_ANAR_APAUSE; PHY_WRITE(sc, IP1000PHY_MII_ANAR, reg | IP1000PHY_ANAR_CSMA); reg = IP1000PHY_1000CR_1000T | IP1000PHY_1000CR_1000T_FDX; if (sc->mii_mpd_model != MII_MODEL_xxICPLUS_IP1001) reg |= IP1000PHY_1000CR_MASTER; PHY_WRITE(sc, IP1000PHY_MII_1000CR, reg); PHY_WRITE(sc, IP1000PHY_MII_BMCR, (IP1000PHY_BMCR_FDX | IP1000PHY_BMCR_AUTOEN | IP1000PHY_BMCR_STARTNEG)); return (EJUSTRETURN); } static void ip1000phy_load_dspcode(struct mii_softc *sc) { PHY_WRITE(sc, 31, 0x0001); PHY_WRITE(sc, 27, 0x01e0); PHY_WRITE(sc, 31, 0x0002); PHY_WRITE(sc, 27, 0xeb8e); PHY_WRITE(sc, 31, 0x0000); PHY_WRITE(sc, 30, 0x005e); PHY_WRITE(sc, 9, 0x0700); DELAY(50); } static void ip1000phy_reset(struct mii_softc *sc) { uint32_t reg; mii_phy_reset(sc); /* clear autoneg/full-duplex as we don't want it after reset */ reg = PHY_READ(sc, IP1000PHY_MII_BMCR); reg &= ~(IP1000PHY_BMCR_AUTOEN | IP1000PHY_BMCR_FDX); PHY_WRITE(sc, MII_BMCR, reg); if ((sc->mii_flags & MIIF_PHYPRIV0) != 0) ip1000phy_load_dspcode(sc); }