jmphy.c revision 216551
1179335Syongari/*- 2179335Syongari * Copyright (c) 2008, Pyun YongHyeon <yongari@FreeBSD.org> 3179335Syongari * All rights reserved. 4179335Syongari * 5179335Syongari * Redistribution and use in source and binary forms, with or without 6179335Syongari * modification, are permitted provided that the following conditions 7179335Syongari * are met: 8179335Syongari * 1. Redistributions of source code must retain the above copyright 9179335Syongari * notice unmodified, this list of conditions, and the following 10179335Syongari * disclaimer. 11179335Syongari * 2. Redistributions in binary form must reproduce the above copyright 12179335Syongari * notice, this list of conditions and the following disclaimer in the 13179335Syongari * documentation and/or other materials provided with the distribution. 14179335Syongari * 15179335Syongari * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16179335Syongari * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17179335Syongari * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18179335Syongari * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19179335Syongari * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20179335Syongari * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21179335Syongari * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22179335Syongari * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23179335Syongari * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24179335Syongari * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25179335Syongari * SUCH DAMAGE. 26179335Syongari */ 27179335Syongari 28179335Syongari#include <sys/cdefs.h> 29179335Syongari__FBSDID("$FreeBSD: head/sys/dev/mii/jmphy.c 216551 2010-12-18 23:52:50Z yongari $"); 30179335Syongari 31179335Syongari/* 32179335Syongari * Driver for the JMicron JMP211 10/100/1000, JMP202 10/100 PHY. 33179335Syongari */ 34179335Syongari 35179335Syongari#include <sys/param.h> 36179335Syongari#include <sys/systm.h> 37179335Syongari#include <sys/kernel.h> 38179335Syongari#include <sys/module.h> 39179335Syongari#include <sys/socket.h> 40179335Syongari#include <sys/bus.h> 41179335Syongari 42179335Syongari#include <net/if.h> 43179335Syongari#include <net/if_media.h> 44179335Syongari 45179335Syongari#include <dev/mii/mii.h> 46179335Syongari#include <dev/mii/miivar.h> 47179335Syongari#include "miidevs.h" 48179335Syongari 49179335Syongari#include <dev/mii/jmphyreg.h> 50179335Syongari 51179335Syongari#include "miibus_if.h" 52179335Syongari 53215298Smariusstatic int jmphy_probe(device_t); 54215298Smariusstatic int jmphy_attach(device_t); 55179335Syongaristatic void jmphy_reset(struct mii_softc *); 56179335Syongaristatic uint16_t jmphy_anar(struct ifmedia_entry *); 57215298Smariusstatic int jmphy_setmedia(struct mii_softc *, struct ifmedia_entry *); 58179335Syongari 59179335Syongaristruct jmphy_softc { 60179335Syongari struct mii_softc mii_sc; 61179335Syongari int mii_oui; 62179335Syongari int mii_model; 63179335Syongari int mii_rev; 64179335Syongari}; 65179335Syongari 66179335Syongaristatic device_method_t jmphy_methods[] = { 67179335Syongari /* Device interface. */ 68179335Syongari DEVMETHOD(device_probe, jmphy_probe), 69179335Syongari DEVMETHOD(device_attach, jmphy_attach), 70179335Syongari DEVMETHOD(device_detach, mii_phy_detach), 71179335Syongari DEVMETHOD(device_shutdown, bus_generic_shutdown), 72179335Syongari { NULL, NULL } 73179335Syongari}; 74179335Syongari 75179335Syongaristatic devclass_t jmphy_devclass; 76179335Syongaristatic driver_t jmphy_driver = { 77179335Syongari "jmphy", 78179335Syongari jmphy_methods, 79179335Syongari sizeof(struct jmphy_softc) 80179335Syongari}; 81179335Syongari 82179335SyongariDRIVER_MODULE(jmphy, miibus, jmphy_driver, jmphy_devclass, 0, 0); 83179335Syongari 84179335Syongaristatic int jmphy_service(struct mii_softc *, struct mii_data *, int); 85179335Syongaristatic void jmphy_status(struct mii_softc *); 86179335Syongari 87179335Syongaristatic const struct mii_phydesc jmphys[] = { 88179335Syongari MII_PHY_DESC(JMICRON, JMP202), 89179335Syongari MII_PHY_DESC(JMICRON, JMP211), 90179335Syongari MII_PHY_END 91179335Syongari}; 92179335Syongari 93179335Syongaristatic int 94179335Syongarijmphy_probe(device_t dev) 95179335Syongari{ 96179335Syongari 97179335Syongari return (mii_phy_dev_probe(dev, jmphys, BUS_PROBE_DEFAULT)); 98179335Syongari} 99179335Syongari 100179335Syongaristatic int 101179335Syongarijmphy_attach(device_t dev) 102179335Syongari{ 103179335Syongari struct jmphy_softc *jsc; 104179335Syongari struct mii_softc *sc; 105179335Syongari struct mii_attach_args *ma; 106179335Syongari struct mii_data *mii; 107216551Syongari struct ifnet *ifp; 108179335Syongari 109179335Syongari jsc = device_get_softc(dev); 110179335Syongari sc = &jsc->mii_sc; 111179335Syongari ma = device_get_ivars(dev); 112179335Syongari sc->mii_dev = device_get_parent(dev); 113213229Smarius mii = ma->mii_data; 114179335Syongari LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list); 115179335Syongari 116213893Smarius sc->mii_flags = miibus_get_flags(dev); 117213364Smarius sc->mii_inst = mii->mii_instance++; 118179335Syongari sc->mii_phy = ma->mii_phyno; 119179335Syongari sc->mii_service = jmphy_service; 120179335Syongari sc->mii_pdata = mii; 121179335Syongari 122216551Syongari ifp = sc->mii_pdata->mii_ifp; 123216551Syongari if (strcmp(ifp->if_dname, "jme") == 0 && 124216551Syongari (sc->mii_flags & MIIF_MACPRIV0) != 0) 125216551Syongari sc->mii_flags |= MIIF_PHYPRIV0; 126179335Syongari jsc->mii_oui = MII_OUI(ma->mii_id1, ma->mii_id2); 127179335Syongari jsc->mii_model = MII_MODEL(ma->mii_id2); 128179335Syongari jsc->mii_rev = MII_REV(ma->mii_id2); 129179335Syongari if (bootverbose) 130179335Syongari device_printf(dev, "OUI 0x%06x, model 0x%04x, rev. %d\n", 131179335Syongari jsc->mii_oui, jsc->mii_model, jsc->mii_rev); 132179335Syongari 133179335Syongari jmphy_reset(sc); 134179335Syongari 135179335Syongari sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 136179335Syongari if (sc->mii_capabilities & BMSR_EXTSTAT) 137179335Syongari sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 138179335Syongari device_printf(dev, " "); 139179335Syongari mii_phy_add_media(sc); 140179335Syongari printf("\n"); 141179335Syongari 142179335Syongari MIIBUS_MEDIAINIT(sc->mii_dev); 143213364Smarius return (0); 144179335Syongari} 145179335Syongari 146179335Syongaristatic int 147179335Syongarijmphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 148179335Syongari{ 149179335Syongari struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 150179335Syongari 151179335Syongari switch (cmd) { 152179335Syongari case MII_POLLSTAT: 153179335Syongari break; 154179335Syongari 155179335Syongari case MII_MEDIACHG: 156179335Syongari /* 157179335Syongari * If the interface is not up, don't do anything. 158179335Syongari */ 159179335Syongari if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 160179335Syongari break; 161179335Syongari 162215298Smarius if (jmphy_setmedia(sc, ife) != EJUSTRETURN) 163179335Syongari return (EINVAL); 164179335Syongari break; 165179335Syongari 166179335Syongari case MII_TICK: 167179335Syongari /* 168179335Syongari * Is the interface even up? 169179335Syongari */ 170179335Syongari if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 171179335Syongari return (0); 172179335Syongari 173179335Syongari /* 174179335Syongari * Only used for autonegotiation. 175179335Syongari */ 176179335Syongari if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) { 177179335Syongari sc->mii_ticks = 0; 178179335Syongari break; 179179335Syongari } 180179335Syongari 181179335Syongari /* Check for link. */ 182179335Syongari if ((PHY_READ(sc, JMPHY_SSR) & JMPHY_SSR_LINK_UP) != 0) { 183179335Syongari sc->mii_ticks = 0; 184179335Syongari break; 185179335Syongari } 186179335Syongari 187179335Syongari /* Announce link loss right after it happens. */ 188179335Syongari if (sc->mii_ticks++ == 0) 189179335Syongari break; 190179335Syongari if (sc->mii_ticks <= sc->mii_anegticks) 191179335Syongari return (0); 192179335Syongari 193179335Syongari sc->mii_ticks = 0; 194215298Smarius (void)jmphy_setmedia(sc, ife); 195179335Syongari break; 196179335Syongari } 197179335Syongari 198179335Syongari /* Update the media status. */ 199179335Syongari jmphy_status(sc); 200179335Syongari 201179335Syongari /* Callback if something changed. */ 202179335Syongari mii_phy_update(sc, cmd); 203179335Syongari return (0); 204179335Syongari} 205179335Syongari 206179335Syongaristatic void 207179335Syongarijmphy_status(struct mii_softc *sc) 208179335Syongari{ 209179335Syongari struct mii_data *mii = sc->mii_pdata; 210179335Syongari int bmcr, ssr; 211179335Syongari 212179335Syongari mii->mii_media_status = IFM_AVALID; 213179335Syongari mii->mii_media_active = IFM_ETHER; 214179335Syongari 215179335Syongari ssr = PHY_READ(sc, JMPHY_SSR); 216179335Syongari if ((ssr & JMPHY_SSR_LINK_UP) != 0) 217179335Syongari mii->mii_media_status |= IFM_ACTIVE; 218179335Syongari 219179335Syongari bmcr = PHY_READ(sc, MII_BMCR); 220179335Syongari if ((bmcr & BMCR_ISO) != 0) { 221179335Syongari mii->mii_media_active |= IFM_NONE; 222179335Syongari mii->mii_media_status = 0; 223179335Syongari return; 224179335Syongari } 225179335Syongari 226179335Syongari if ((bmcr & BMCR_LOOP) != 0) 227179335Syongari mii->mii_media_active |= IFM_LOOP; 228179335Syongari 229179335Syongari if ((ssr & JMPHY_SSR_SPD_DPLX_RESOLVED) == 0) { 230179335Syongari /* Erg, still trying, I guess... */ 231179335Syongari mii->mii_media_active |= IFM_NONE; 232179335Syongari return; 233179335Syongari } 234179335Syongari 235179335Syongari switch ((ssr & JMPHY_SSR_SPEED_MASK)) { 236179335Syongari case JMPHY_SSR_SPEED_1000: 237179335Syongari mii->mii_media_active |= IFM_1000_T; 238179335Syongari /* 239179335Syongari * jmphy(4) got a valid link so reset mii_ticks. 240179335Syongari * Resetting mii_ticks is needed in order to 241179335Syongari * detect link loss after auto-negotiation. 242179335Syongari */ 243179335Syongari sc->mii_ticks = 0; 244179335Syongari break; 245179335Syongari case JMPHY_SSR_SPEED_100: 246179335Syongari mii->mii_media_active |= IFM_100_TX; 247179335Syongari sc->mii_ticks = 0; 248179335Syongari break; 249179335Syongari case JMPHY_SSR_SPEED_10: 250179335Syongari mii->mii_media_active |= IFM_10_T; 251179335Syongari sc->mii_ticks = 0; 252179335Syongari break; 253179335Syongari default: 254179335Syongari mii->mii_media_active |= IFM_NONE; 255179335Syongari return; 256179335Syongari } 257179335Syongari 258179335Syongari if ((ssr & JMPHY_SSR_DUPLEX) != 0) 259215298Smarius mii->mii_media_active |= IFM_FDX | mii_phy_flowstatus(sc); 260179335Syongari else 261179335Syongari mii->mii_media_active |= IFM_HDX; 262215298Smarius 263179335Syongari if (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T) { 264179335Syongari if ((PHY_READ(sc, MII_100T2SR) & GTSR_MS_RES) != 0) 265179335Syongari mii->mii_media_active |= IFM_ETH_MASTER; 266179335Syongari } 267179335Syongari} 268179335Syongari 269179335Syongaristatic void 270179335Syongarijmphy_reset(struct mii_softc *sc) 271179335Syongari{ 272179335Syongari struct jmphy_softc *jsc; 273216551Syongari uint16_t t2cr, val; 274179335Syongari int i; 275179335Syongari 276179335Syongari jsc = (struct jmphy_softc *)sc; 277179335Syongari 278179335Syongari /* Disable sleep mode. */ 279179335Syongari PHY_WRITE(sc, JMPHY_TMCTL, 280179335Syongari PHY_READ(sc, JMPHY_TMCTL) & ~JMPHY_TMCTL_SLEEP_ENB); 281179335Syongari PHY_WRITE(sc, MII_BMCR, BMCR_RESET | BMCR_AUTOEN); 282179335Syongari 283179335Syongari for (i = 0; i < 1000; i++) { 284179335Syongari DELAY(1); 285179335Syongari if ((PHY_READ(sc, MII_BMCR) & BMCR_RESET) == 0) 286179335Syongari break; 287179335Syongari } 288216551Syongari /* Perform vendor recommended PHY calibration. */ 289216551Syongari if ((sc->mii_flags & MIIF_PHYPRIV0) != 0) { 290216551Syongari /* Select PHY test mode 1. */ 291216551Syongari t2cr = PHY_READ(sc, MII_100T2CR); 292216551Syongari t2cr &= ~GTCR_TEST_MASK; 293216551Syongari t2cr |= 0x2000; 294216551Syongari PHY_WRITE(sc, MII_100T2CR, t2cr); 295216551Syongari /* Apply calibration patch. */ 296216551Syongari PHY_WRITE(sc, JMPHY_SPEC_ADDR, JMPHY_SPEC_ADDR_READ | 297216551Syongari JMPHY_EXT_COMM_2); 298216551Syongari val = PHY_READ(sc, JMPHY_SPEC_DATA); 299216551Syongari val &= ~0x0002; 300216551Syongari val |= 0x0010 | 0x0001; 301216551Syongari PHY_WRITE(sc, JMPHY_SPEC_DATA, val); 302216551Syongari PHY_WRITE(sc, JMPHY_SPEC_ADDR, JMPHY_SPEC_ADDR_WRITE | 303216551Syongari JMPHY_EXT_COMM_2); 304216551Syongari 305216551Syongari /* XXX 20ms to complete recalibration. */ 306216551Syongari DELAY(20 * 1000); 307216551Syongari 308216551Syongari PHY_READ(sc, MII_100T2CR); 309216551Syongari PHY_WRITE(sc, JMPHY_SPEC_ADDR, JMPHY_SPEC_ADDR_READ | 310216551Syongari JMPHY_EXT_COMM_2); 311216551Syongari val = PHY_READ(sc, JMPHY_SPEC_DATA); 312216551Syongari val &= ~(0x0001 | 0x0002 | 0x0010); 313216551Syongari PHY_WRITE(sc, JMPHY_SPEC_DATA, val); 314216551Syongari PHY_WRITE(sc, JMPHY_SPEC_ADDR, JMPHY_SPEC_ADDR_WRITE | 315216551Syongari JMPHY_EXT_COMM_2); 316216551Syongari /* Disable PHY test mode. */ 317216551Syongari PHY_READ(sc, MII_100T2CR); 318216551Syongari t2cr &= ~GTCR_TEST_MASK; 319216551Syongari PHY_WRITE(sc, MII_100T2CR, t2cr); 320216551Syongari } 321179335Syongari} 322179335Syongari 323179335Syongaristatic uint16_t 324179335Syongarijmphy_anar(struct ifmedia_entry *ife) 325179335Syongari{ 326179335Syongari uint16_t anar; 327179335Syongari 328179335Syongari anar = 0; 329179335Syongari switch (IFM_SUBTYPE(ife->ifm_media)) { 330179335Syongari case IFM_AUTO: 331179335Syongari anar |= ANAR_TX_FD | ANAR_TX | ANAR_10_FD | ANAR_10; 332179335Syongari break; 333179335Syongari case IFM_1000_T: 334179335Syongari break; 335179335Syongari case IFM_100_TX: 336179335Syongari anar |= ANAR_TX | ANAR_TX_FD; 337179335Syongari break; 338179335Syongari case IFM_10_T: 339179335Syongari anar |= ANAR_10 | ANAR_10_FD; 340179335Syongari break; 341179335Syongari default: 342179335Syongari break; 343179335Syongari } 344179335Syongari 345179335Syongari return (anar); 346179335Syongari} 347179335Syongari 348179335Syongaristatic int 349215298Smariusjmphy_setmedia(struct mii_softc *sc, struct ifmedia_entry *ife) 350179335Syongari{ 351179335Syongari uint16_t anar, bmcr, gig; 352179335Syongari 353179335Syongari gig = 0; 354179335Syongari bmcr = PHY_READ(sc, MII_BMCR); 355179335Syongari switch (IFM_SUBTYPE(ife->ifm_media)) { 356179335Syongari case IFM_AUTO: 357179335Syongari gig |= GTCR_ADV_1000TFDX | GTCR_ADV_1000THDX; 358179335Syongari break; 359179335Syongari case IFM_1000_T: 360179335Syongari gig |= GTCR_ADV_1000TFDX | GTCR_ADV_1000THDX; 361179335Syongari break; 362179335Syongari case IFM_100_TX: 363179335Syongari case IFM_10_T: 364179335Syongari break; 365179335Syongari case IFM_NONE: 366179335Syongari PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_ISO | BMCR_PDOWN); 367179335Syongari return (EJUSTRETURN); 368179335Syongari default: 369179335Syongari return (EINVAL); 370179335Syongari } 371179335Syongari 372179335Syongari if ((ife->ifm_media & IFM_LOOP) != 0) 373179335Syongari bmcr |= BMCR_LOOP; 374179335Syongari 375179335Syongari anar = jmphy_anar(ife); 376215298Smarius if (((IFM_SUBTYPE(ife->ifm_media) == IFM_AUTO || 377215298Smarius (ife->ifm_media & IFM_FDX) != 0) && 378215298Smarius (ife->ifm_media & IFM_FLOW) != 0) || 379215298Smarius (sc->mii_flags & MIIF_FORCEPAUSE) != 0) 380215298Smarius anar |= ANAR_PAUSE_TOWARDS; 381179335Syongari 382179335Syongari if ((sc->mii_flags & MIIF_HAVE_GTCR) != 0) { 383215298Smarius if (IFM_SUBTYPE(ife->ifm_media) == IFM_1000_T) { 384215298Smarius gig |= GTCR_MAN_MS; 385215298Smarius if ((ife->ifm_media & IFM_ETH_MASTER) != 0) 386215298Smarius gig |= GTCR_ADV_MS; 387215298Smarius } 388179335Syongari PHY_WRITE(sc, MII_100T2CR, gig); 389179335Syongari } 390179335Syongari PHY_WRITE(sc, MII_ANAR, anar | ANAR_CSMA); 391179335Syongari PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_AUTOEN | BMCR_STARTNEG); 392179335Syongari 393179335Syongari return (EJUSTRETURN); 394179335Syongari} 395