/*- * SPDX-License-Identifier: BSD-2-Clause * * Copyright (c) 2008, 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 JMicron JMP211 10/100/1000, JMP202 10/100 PHY. */ #include #include #include #include #include #include #include #include #include #include #include #include "miidevs.h" #include #include "miibus_if.h" static int jmphy_probe(device_t); static int jmphy_attach(device_t); static void jmphy_reset(struct mii_softc *); static uint16_t jmphy_anar(struct ifmedia_entry *); static int jmphy_setmedia(struct mii_softc *, struct ifmedia_entry *); static device_method_t jmphy_methods[] = { /* Device interface. */ DEVMETHOD(device_probe, jmphy_probe), DEVMETHOD(device_attach, jmphy_attach), DEVMETHOD(device_detach, mii_phy_detach), DEVMETHOD(device_shutdown, bus_generic_shutdown), DEVMETHOD_END }; static devclass_t jmphy_devclass; static driver_t jmphy_driver = { "jmphy", jmphy_methods, sizeof(struct mii_softc) }; DRIVER_MODULE(jmphy, miibus, jmphy_driver, jmphy_devclass, 0, 0); static int jmphy_service(struct mii_softc *, struct mii_data *, int); static void jmphy_status(struct mii_softc *); static const struct mii_phydesc jmphys[] = { MII_PHY_DESC(JMICRON, JMP202), MII_PHY_DESC(JMICRON, JMP211), MII_PHY_END }; static const struct mii_phy_funcs jmphy_funcs = { jmphy_service, jmphy_status, jmphy_reset }; static int jmphy_probe(device_t dev) { return (mii_phy_dev_probe(dev, jmphys, BUS_PROBE_DEFAULT)); } static int jmphy_attach(device_t dev) { u_int flags; flags = 0; if (mii_dev_mac_match(dev, "jme") && (miibus_get_flags(dev) & MIIF_MACPRIV0) != 0) flags |= MIIF_PHYPRIV0; mii_phy_dev_attach(dev, flags, &jmphy_funcs, 1); return (0); } static int jmphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) { struct ifmedia_entry *ife = mii->mii_media.ifm_cur; switch (cmd) { case MII_POLLSTAT: break; case MII_MEDIACHG: if (jmphy_setmedia(sc, ife) != EJUSTRETURN) return (EINVAL); break; case MII_TICK: /* * Only used for autonegotiation. */ if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) { sc->mii_ticks = 0; break; } /* Check for link. */ if ((PHY_READ(sc, JMPHY_SSR) & JMPHY_SSR_LINK_UP) != 0) { sc->mii_ticks = 0; break; } /* Announce link loss right after it happens. */ if (sc->mii_ticks++ == 0) break; if (sc->mii_ticks <= sc->mii_anegticks) return (0); sc->mii_ticks = 0; (void)jmphy_setmedia(sc, ife); break; } /* Update the media status. */ PHY_STATUS(sc); /* Callback if something changed. */ mii_phy_update(sc, cmd); return (0); } static void jmphy_status(struct mii_softc *sc) { struct mii_data *mii = sc->mii_pdata; int bmcr, ssr; mii->mii_media_status = IFM_AVALID; mii->mii_media_active = IFM_ETHER; ssr = PHY_READ(sc, JMPHY_SSR); if ((ssr & JMPHY_SSR_LINK_UP) != 0) mii->mii_media_status |= IFM_ACTIVE; bmcr = PHY_READ(sc, MII_BMCR); if ((bmcr & BMCR_ISO) != 0) { mii->mii_media_active |= IFM_NONE; mii->mii_media_status = 0; return; } if ((bmcr & BMCR_LOOP) != 0) mii->mii_media_active |= IFM_LOOP; if ((ssr & JMPHY_SSR_SPD_DPLX_RESOLVED) == 0) { /* Erg, still trying, I guess... */ mii->mii_media_active |= IFM_NONE; return; } switch ((ssr & JMPHY_SSR_SPEED_MASK)) { case JMPHY_SSR_SPEED_1000: mii->mii_media_active |= IFM_1000_T; /* * jmphy(4) got a valid link so reset mii_ticks. * Resetting mii_ticks is needed in order to * detect link loss after auto-negotiation. */ sc->mii_ticks = 0; break; case JMPHY_SSR_SPEED_100: mii->mii_media_active |= IFM_100_TX; sc->mii_ticks = 0; break; case JMPHY_SSR_SPEED_10: mii->mii_media_active |= IFM_10_T; sc->mii_ticks = 0; break; default: mii->mii_media_active |= IFM_NONE; return; } if ((ssr & JMPHY_SSR_DUPLEX) != 0) 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) { if ((PHY_READ(sc, MII_100T2SR) & GTSR_MS_RES) != 0) mii->mii_media_active |= IFM_ETH_MASTER; } } static void jmphy_reset(struct mii_softc *sc) { uint16_t t2cr, val; int i; /* Disable sleep mode. */ PHY_WRITE(sc, JMPHY_TMCTL, PHY_READ(sc, JMPHY_TMCTL) & ~JMPHY_TMCTL_SLEEP_ENB); PHY_WRITE(sc, MII_BMCR, BMCR_RESET | BMCR_AUTOEN); for (i = 0; i < 1000; i++) { DELAY(1); if ((PHY_READ(sc, MII_BMCR) & BMCR_RESET) == 0) break; } /* Perform vendor recommended PHY calibration. */ if ((sc->mii_flags & MIIF_PHYPRIV0) != 0) { /* Select PHY test mode 1. */ t2cr = PHY_READ(sc, MII_100T2CR); t2cr &= ~GTCR_TEST_MASK; t2cr |= 0x2000; PHY_WRITE(sc, MII_100T2CR, t2cr); /* Apply calibration patch. */ PHY_WRITE(sc, JMPHY_SPEC_ADDR, JMPHY_SPEC_ADDR_READ | JMPHY_EXT_COMM_2); val = PHY_READ(sc, JMPHY_SPEC_DATA); val &= ~0x0002; val |= 0x0010 | 0x0001; PHY_WRITE(sc, JMPHY_SPEC_DATA, val); PHY_WRITE(sc, JMPHY_SPEC_ADDR, JMPHY_SPEC_ADDR_WRITE | JMPHY_EXT_COMM_2); /* XXX 20ms to complete recalibration. */ DELAY(20 * 1000); PHY_READ(sc, MII_100T2CR); PHY_WRITE(sc, JMPHY_SPEC_ADDR, JMPHY_SPEC_ADDR_READ | JMPHY_EXT_COMM_2); val = PHY_READ(sc, JMPHY_SPEC_DATA); val &= ~(0x0001 | 0x0002 | 0x0010); PHY_WRITE(sc, JMPHY_SPEC_DATA, val); PHY_WRITE(sc, JMPHY_SPEC_ADDR, JMPHY_SPEC_ADDR_WRITE | JMPHY_EXT_COMM_2); /* Disable PHY test mode. */ PHY_READ(sc, MII_100T2CR); t2cr &= ~GTCR_TEST_MASK; PHY_WRITE(sc, MII_100T2CR, t2cr); } } static uint16_t jmphy_anar(struct ifmedia_entry *ife) { uint16_t anar; anar = 0; switch (IFM_SUBTYPE(ife->ifm_media)) { case IFM_AUTO: anar |= ANAR_TX_FD | ANAR_TX | ANAR_10_FD | ANAR_10; break; case IFM_1000_T: break; case IFM_100_TX: anar |= ANAR_TX | ANAR_TX_FD; break; case IFM_10_T: anar |= ANAR_10 | ANAR_10_FD; break; default: break; } return (anar); } static int jmphy_setmedia(struct mii_softc *sc, struct ifmedia_entry *ife) { uint16_t anar, bmcr, gig; gig = 0; bmcr = PHY_READ(sc, MII_BMCR); switch (IFM_SUBTYPE(ife->ifm_media)) { case IFM_AUTO: gig |= GTCR_ADV_1000TFDX | GTCR_ADV_1000THDX; break; case IFM_1000_T: gig |= GTCR_ADV_1000TFDX | GTCR_ADV_1000THDX; break; case IFM_100_TX: case IFM_10_T: break; case IFM_NONE: PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_ISO | BMCR_PDOWN); return (EJUSTRETURN); default: return (EINVAL); } anar = jmphy_anar(ife); if ((IFM_SUBTYPE(ife->ifm_media) == IFM_AUTO || (ife->ifm_media & IFM_FDX) != 0) && ((ife->ifm_media & IFM_FLOW) != 0 || (sc->mii_flags & MIIF_FORCEPAUSE) != 0)) anar |= ANAR_PAUSE_TOWARDS; if ((sc->mii_flags & MIIF_HAVE_GTCR) != 0) { if (IFM_SUBTYPE(ife->ifm_media) == IFM_1000_T) { gig |= GTCR_MAN_MS; if ((ife->ifm_media & IFM_ETH_MASTER) != 0) gig |= GTCR_ADV_MS; } PHY_WRITE(sc, MII_100T2CR, gig); } PHY_WRITE(sc, MII_ANAR, anar | ANAR_CSMA); PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_AUTOEN | BMCR_STARTNEG); return (EJUSTRETURN); }