/*- * SPDX-License-Identifier: BSD-4-Clause * * Copyright (c) 2004 * Bill Paul . 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, 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. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Bill Paul. * 4. Neither the name of the author nor the names of any co-contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY Bill Paul 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 Bill Paul OR THE VOICES IN HIS HEAD * 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 Cicada/Vitesse CS/VSC8xxx 10/100/1000 copper PHY. */ #include #include #include #include #include #include #include #include #include #include #include #include "miidevs.h" #include #include "miibus_if.h" #include static int ciphy_probe(device_t); static int ciphy_attach(device_t); static device_method_t ciphy_methods[] = { /* device interface */ DEVMETHOD(device_probe, ciphy_probe), DEVMETHOD(device_attach, ciphy_attach), DEVMETHOD(device_detach, mii_phy_detach), DEVMETHOD(device_shutdown, bus_generic_shutdown), DEVMETHOD_END }; static devclass_t ciphy_devclass; static driver_t ciphy_driver = { "ciphy", ciphy_methods, sizeof(struct mii_softc) }; DRIVER_MODULE(ciphy, miibus, ciphy_driver, ciphy_devclass, 0, 0); static int ciphy_service(struct mii_softc *, struct mii_data *, int); static void ciphy_status(struct mii_softc *); static void ciphy_reset(struct mii_softc *); static void ciphy_fixup(struct mii_softc *); static const struct mii_phydesc ciphys[] = { MII_PHY_DESC(xxCICADA, CS8201), MII_PHY_DESC(xxCICADA, CS8201A), MII_PHY_DESC(xxCICADA, CS8201B), MII_PHY_DESC(xxCICADA, CS8204), MII_PHY_DESC(xxCICADA, VSC8211), MII_PHY_DESC(xxCICADA, VSC8221), MII_PHY_DESC(xxCICADA, CS8244), MII_PHY_DESC(xxVITESSE, VSC8601), MII_PHY_DESC(xxVITESSE, VSC8641), MII_PHY_END }; static const struct mii_phy_funcs ciphy_funcs = { ciphy_service, ciphy_status, ciphy_reset }; static int ciphy_probe(device_t dev) { return (mii_phy_dev_probe(dev, ciphys, BUS_PROBE_DEFAULT)); } static int ciphy_attach(device_t dev) { mii_phy_dev_attach(dev, MIIF_NOISOLATE | MIIF_NOMANPAUSE, &ciphy_funcs, 1); return (0); } static int ciphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) { struct ifmedia_entry *ife = mii->mii_media.ifm_cur; int reg, speed, gig; switch (cmd) { case MII_POLLSTAT: break; case MII_MEDIACHG: ciphy_fixup(sc); /* XXX hardware bug work-around */ switch (IFM_SUBTYPE(ife->ifm_media)) { case IFM_AUTO: #ifdef foo /* * If we're already in auto mode, just return. */ if (PHY_READ(sc, CIPHY_MII_BMCR) & CIPHY_BMCR_AUTOEN) return (0); #endif (void)mii_phy_auto(sc); break; case IFM_1000_T: speed = CIPHY_S1000; goto setit; case IFM_100_TX: speed = CIPHY_S100; goto setit; case IFM_10_T: speed = CIPHY_S10; setit: if ((ife->ifm_media & IFM_FDX) != 0) { speed |= CIPHY_BMCR_FDX; gig = CIPHY_1000CTL_AFD; } else gig = CIPHY_1000CTL_AHD; if (IFM_SUBTYPE(ife->ifm_media) == IFM_1000_T) { gig |= CIPHY_1000CTL_MSE; if ((ife->ifm_media & IFM_ETH_MASTER) != 0) gig |= CIPHY_1000CTL_MSC; speed |= CIPHY_BMCR_AUTOEN | CIPHY_BMCR_STARTNEG; } else gig = 0; PHY_WRITE(sc, CIPHY_MII_1000CTL, gig); PHY_WRITE(sc, CIPHY_MII_BMCR, speed); PHY_WRITE(sc, CIPHY_MII_ANAR, CIPHY_SEL_TYPE); break; case IFM_NONE: PHY_WRITE(sc, MII_BMCR, BMCR_ISO | BMCR_PDOWN); break; default: return (EINVAL); } break; case MII_TICK: /* * Only used for autonegotiation. */ if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) break; /* * Check to see if we have link. If we do, we don't * need to restart the autonegotiation process. Read * the BMSR twice in case it's latched. */ reg = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR); if (reg & BMSR_LINK) 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; mii_phy_auto(sc); break; } /* Update the media status. */ PHY_STATUS(sc); /* * Callback if something changed. Note that we need to poke * apply fixups for certain PHY revs. */ if (sc->mii_media_active != mii->mii_media_active || sc->mii_media_status != mii->mii_media_status || cmd == MII_MEDIACHG) { ciphy_fixup(sc); } mii_phy_update(sc, cmd); return (0); } static void ciphy_status(struct mii_softc *sc) { struct mii_data *mii = sc->mii_pdata; int bmsr, bmcr; mii->mii_media_status = IFM_AVALID; mii->mii_media_active = IFM_ETHER; bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR); if (bmsr & BMSR_LINK) mii->mii_media_status |= IFM_ACTIVE; bmcr = PHY_READ(sc, CIPHY_MII_BMCR); if (bmcr & CIPHY_BMCR_LOOP) mii->mii_media_active |= IFM_LOOP; if (bmcr & CIPHY_BMCR_AUTOEN) { if ((bmsr & CIPHY_BMSR_ACOMP) == 0) { /* Erg, still trying, I guess... */ mii->mii_media_active |= IFM_NONE; return; } } bmsr = PHY_READ(sc, CIPHY_MII_AUXCSR); switch (bmsr & CIPHY_AUXCSR_SPEED) { case CIPHY_SPEED10: mii->mii_media_active |= IFM_10_T; break; case CIPHY_SPEED100: mii->mii_media_active |= IFM_100_TX; break; case CIPHY_SPEED1000: mii->mii_media_active |= IFM_1000_T; break; default: device_printf(sc->mii_dev, "unknown PHY speed %x\n", bmsr & CIPHY_AUXCSR_SPEED); break; } if (bmsr & CIPHY_AUXCSR_FDX) mii->mii_media_active |= IFM_FDX | mii_phy_flowstatus(sc); else mii->mii_media_active |= IFM_HDX; if ((IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T) && (PHY_READ(sc, CIPHY_MII_1000STS) & CIPHY_1000STS_MSR) != 0) mii->mii_media_active |= IFM_ETH_MASTER; } static void ciphy_reset(struct mii_softc *sc) { mii_phy_reset(sc); DELAY(1000); } #define PHY_SETBIT(x, y, z) \ PHY_WRITE(x, y, (PHY_READ(x, y) | (z))) #define PHY_CLRBIT(x, y, z) \ PHY_WRITE(x, y, (PHY_READ(x, y) & ~(z))) static void ciphy_fixup(struct mii_softc *sc) { uint16_t model; uint16_t status, speed; uint16_t val; model = MII_MODEL(PHY_READ(sc, CIPHY_MII_PHYIDR2)); status = PHY_READ(sc, CIPHY_MII_AUXCSR); speed = status & CIPHY_AUXCSR_SPEED; if (mii_phy_mac_match(sc, "nfe")) { /* need to set for 2.5V RGMII for NVIDIA adapters */ val = PHY_READ(sc, CIPHY_MII_ECTL1); val &= ~(CIPHY_ECTL1_IOVOL | CIPHY_ECTL1_INTSEL); val |= (CIPHY_IOVOL_2500MV | CIPHY_INTSEL_RGMII); PHY_WRITE(sc, CIPHY_MII_ECTL1, val); /* From Linux. */ val = PHY_READ(sc, CIPHY_MII_AUXCSR); val |= CIPHY_AUXCSR_MDPPS; PHY_WRITE(sc, CIPHY_MII_AUXCSR, val); val = PHY_READ(sc, CIPHY_MII_10BTCSR); val |= CIPHY_10BTCSR_ECHO; PHY_WRITE(sc, CIPHY_MII_10BTCSR, val); } switch (model) { case MII_MODEL_xxCICADA_CS8204: case MII_MODEL_xxCICADA_CS8201: /* Turn off "aux mode" (whatever that means) */ PHY_SETBIT(sc, CIPHY_MII_AUXCSR, CIPHY_AUXCSR_MDPPS); /* * Work around speed polling bug in VT3119/VT3216 * when using MII in full duplex mode. */ if ((speed == CIPHY_SPEED10 || speed == CIPHY_SPEED100) && (status & CIPHY_AUXCSR_FDX)) { PHY_SETBIT(sc, CIPHY_MII_10BTCSR, CIPHY_10BTCSR_ECHO); } else { PHY_CLRBIT(sc, CIPHY_MII_10BTCSR, CIPHY_10BTCSR_ECHO); } /* Enable link/activity LED blink. */ PHY_SETBIT(sc, CIPHY_MII_LED, CIPHY_LED_LINKACTBLINK); break; case MII_MODEL_xxCICADA_CS8201A: case MII_MODEL_xxCICADA_CS8201B: /* * Work around speed polling bug in VT3119/VT3216 * when using MII in full duplex mode. */ if ((speed == CIPHY_SPEED10 || speed == CIPHY_SPEED100) && (status & CIPHY_AUXCSR_FDX)) { PHY_SETBIT(sc, CIPHY_MII_10BTCSR, CIPHY_10BTCSR_ECHO); } else { PHY_CLRBIT(sc, CIPHY_MII_10BTCSR, CIPHY_10BTCSR_ECHO); } break; case MII_MODEL_xxCICADA_VSC8211: case MII_MODEL_xxCICADA_VSC8221: case MII_MODEL_xxCICADA_CS8244: case MII_MODEL_xxVITESSE_VSC8601: case MII_MODEL_xxVITESSE_VSC8641: break; default: device_printf(sc->mii_dev, "unknown CICADA PHY model %x\n", model); break; } }