jmphy.c revision 221407
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 221407 2011-05-03 19:51:29Z marius $"); 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 59179335Syongaristatic device_method_t jmphy_methods[] = { 60179335Syongari /* Device interface. */ 61179335Syongari DEVMETHOD(device_probe, jmphy_probe), 62179335Syongari DEVMETHOD(device_attach, jmphy_attach), 63179335Syongari DEVMETHOD(device_detach, mii_phy_detach), 64179335Syongari DEVMETHOD(device_shutdown, bus_generic_shutdown), 65179335Syongari { NULL, NULL } 66179335Syongari}; 67179335Syongari 68179335Syongaristatic devclass_t jmphy_devclass; 69179335Syongaristatic driver_t jmphy_driver = { 70179335Syongari "jmphy", 71179335Syongari jmphy_methods, 72221407Smarius sizeof(struct mii_softc) 73179335Syongari}; 74179335Syongari 75179335SyongariDRIVER_MODULE(jmphy, miibus, jmphy_driver, jmphy_devclass, 0, 0); 76179335Syongari 77179335Syongaristatic int jmphy_service(struct mii_softc *, struct mii_data *, int); 78179335Syongaristatic void jmphy_status(struct mii_softc *); 79179335Syongari 80179335Syongaristatic const struct mii_phydesc jmphys[] = { 81179335Syongari MII_PHY_DESC(JMICRON, JMP202), 82179335Syongari MII_PHY_DESC(JMICRON, JMP211), 83179335Syongari MII_PHY_END 84179335Syongari}; 85179335Syongari 86221407Smariusstatic const struct mii_phy_funcs jmphy_funcs = { 87221407Smarius jmphy_service, 88221407Smarius jmphy_status, 89221407Smarius jmphy_reset 90221407Smarius}; 91221407Smarius 92179335Syongaristatic int 93179335Syongarijmphy_probe(device_t dev) 94179335Syongari{ 95179335Syongari 96179335Syongari return (mii_phy_dev_probe(dev, jmphys, BUS_PROBE_DEFAULT)); 97179335Syongari} 98179335Syongari 99179335Syongaristatic int 100179335Syongarijmphy_attach(device_t dev) 101179335Syongari{ 102179335Syongari struct mii_attach_args *ma; 103221407Smarius u_int flags; 104179335Syongari 105179335Syongari ma = device_get_ivars(dev); 106221407Smarius flags = 0; 107221407Smarius if (strcmp(ma->mii_data->mii_ifp->if_dname, "jme") == 0 && 108221407Smarius (miibus_get_flags(dev) & MIIF_MACPRIV0) != 0) 109221407Smarius flags |= MIIF_PHYPRIV0; 110221407Smarius mii_phy_dev_attach(dev, flags, &jmphy_funcs, 1); 111213364Smarius return (0); 112179335Syongari} 113179335Syongari 114179335Syongaristatic int 115179335Syongarijmphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 116179335Syongari{ 117179335Syongari struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 118179335Syongari 119179335Syongari switch (cmd) { 120179335Syongari case MII_POLLSTAT: 121179335Syongari break; 122179335Syongari 123179335Syongari case MII_MEDIACHG: 124179335Syongari /* 125179335Syongari * If the interface is not up, don't do anything. 126179335Syongari */ 127179335Syongari if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 128179335Syongari break; 129179335Syongari 130215298Smarius if (jmphy_setmedia(sc, ife) != EJUSTRETURN) 131179335Syongari return (EINVAL); 132179335Syongari break; 133179335Syongari 134179335Syongari case MII_TICK: 135179335Syongari /* 136179335Syongari * Is the interface even up? 137179335Syongari */ 138179335Syongari if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 139179335Syongari return (0); 140179335Syongari 141179335Syongari /* 142179335Syongari * Only used for autonegotiation. 143179335Syongari */ 144179335Syongari if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) { 145179335Syongari sc->mii_ticks = 0; 146179335Syongari break; 147179335Syongari } 148179335Syongari 149179335Syongari /* Check for link. */ 150179335Syongari if ((PHY_READ(sc, JMPHY_SSR) & JMPHY_SSR_LINK_UP) != 0) { 151179335Syongari sc->mii_ticks = 0; 152179335Syongari break; 153179335Syongari } 154179335Syongari 155179335Syongari /* Announce link loss right after it happens. */ 156179335Syongari if (sc->mii_ticks++ == 0) 157179335Syongari break; 158179335Syongari if (sc->mii_ticks <= sc->mii_anegticks) 159179335Syongari return (0); 160179335Syongari 161179335Syongari sc->mii_ticks = 0; 162215298Smarius (void)jmphy_setmedia(sc, ife); 163179335Syongari break; 164179335Syongari } 165179335Syongari 166179335Syongari /* Update the media status. */ 167221407Smarius PHY_STATUS(sc); 168179335Syongari 169179335Syongari /* Callback if something changed. */ 170179335Syongari mii_phy_update(sc, cmd); 171179335Syongari return (0); 172179335Syongari} 173179335Syongari 174179335Syongaristatic void 175179335Syongarijmphy_status(struct mii_softc *sc) 176179335Syongari{ 177179335Syongari struct mii_data *mii = sc->mii_pdata; 178179335Syongari int bmcr, ssr; 179179335Syongari 180179335Syongari mii->mii_media_status = IFM_AVALID; 181179335Syongari mii->mii_media_active = IFM_ETHER; 182179335Syongari 183179335Syongari ssr = PHY_READ(sc, JMPHY_SSR); 184179335Syongari if ((ssr & JMPHY_SSR_LINK_UP) != 0) 185179335Syongari mii->mii_media_status |= IFM_ACTIVE; 186179335Syongari 187179335Syongari bmcr = PHY_READ(sc, MII_BMCR); 188179335Syongari if ((bmcr & BMCR_ISO) != 0) { 189179335Syongari mii->mii_media_active |= IFM_NONE; 190179335Syongari mii->mii_media_status = 0; 191179335Syongari return; 192179335Syongari } 193179335Syongari 194179335Syongari if ((bmcr & BMCR_LOOP) != 0) 195179335Syongari mii->mii_media_active |= IFM_LOOP; 196179335Syongari 197179335Syongari if ((ssr & JMPHY_SSR_SPD_DPLX_RESOLVED) == 0) { 198179335Syongari /* Erg, still trying, I guess... */ 199179335Syongari mii->mii_media_active |= IFM_NONE; 200179335Syongari return; 201179335Syongari } 202179335Syongari 203179335Syongari switch ((ssr & JMPHY_SSR_SPEED_MASK)) { 204179335Syongari case JMPHY_SSR_SPEED_1000: 205179335Syongari mii->mii_media_active |= IFM_1000_T; 206179335Syongari /* 207179335Syongari * jmphy(4) got a valid link so reset mii_ticks. 208179335Syongari * Resetting mii_ticks is needed in order to 209179335Syongari * detect link loss after auto-negotiation. 210179335Syongari */ 211179335Syongari sc->mii_ticks = 0; 212179335Syongari break; 213179335Syongari case JMPHY_SSR_SPEED_100: 214179335Syongari mii->mii_media_active |= IFM_100_TX; 215179335Syongari sc->mii_ticks = 0; 216179335Syongari break; 217179335Syongari case JMPHY_SSR_SPEED_10: 218179335Syongari mii->mii_media_active |= IFM_10_T; 219179335Syongari sc->mii_ticks = 0; 220179335Syongari break; 221179335Syongari default: 222179335Syongari mii->mii_media_active |= IFM_NONE; 223179335Syongari return; 224179335Syongari } 225179335Syongari 226179335Syongari if ((ssr & JMPHY_SSR_DUPLEX) != 0) 227215298Smarius mii->mii_media_active |= IFM_FDX | mii_phy_flowstatus(sc); 228179335Syongari else 229179335Syongari mii->mii_media_active |= IFM_HDX; 230215298Smarius 231179335Syongari if (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T) { 232179335Syongari if ((PHY_READ(sc, MII_100T2SR) & GTSR_MS_RES) != 0) 233179335Syongari mii->mii_media_active |= IFM_ETH_MASTER; 234179335Syongari } 235179335Syongari} 236179335Syongari 237179335Syongaristatic void 238179335Syongarijmphy_reset(struct mii_softc *sc) 239179335Syongari{ 240216551Syongari uint16_t t2cr, val; 241179335Syongari int i; 242179335Syongari 243179335Syongari /* Disable sleep mode. */ 244179335Syongari PHY_WRITE(sc, JMPHY_TMCTL, 245179335Syongari PHY_READ(sc, JMPHY_TMCTL) & ~JMPHY_TMCTL_SLEEP_ENB); 246179335Syongari PHY_WRITE(sc, MII_BMCR, BMCR_RESET | BMCR_AUTOEN); 247179335Syongari 248179335Syongari for (i = 0; i < 1000; i++) { 249179335Syongari DELAY(1); 250179335Syongari if ((PHY_READ(sc, MII_BMCR) & BMCR_RESET) == 0) 251179335Syongari break; 252179335Syongari } 253216551Syongari /* Perform vendor recommended PHY calibration. */ 254216551Syongari if ((sc->mii_flags & MIIF_PHYPRIV0) != 0) { 255216551Syongari /* Select PHY test mode 1. */ 256216551Syongari t2cr = PHY_READ(sc, MII_100T2CR); 257216551Syongari t2cr &= ~GTCR_TEST_MASK; 258216551Syongari t2cr |= 0x2000; 259216551Syongari PHY_WRITE(sc, MII_100T2CR, t2cr); 260216551Syongari /* Apply calibration patch. */ 261216551Syongari PHY_WRITE(sc, JMPHY_SPEC_ADDR, JMPHY_SPEC_ADDR_READ | 262216551Syongari JMPHY_EXT_COMM_2); 263216551Syongari val = PHY_READ(sc, JMPHY_SPEC_DATA); 264216551Syongari val &= ~0x0002; 265216551Syongari val |= 0x0010 | 0x0001; 266216551Syongari PHY_WRITE(sc, JMPHY_SPEC_DATA, val); 267216551Syongari PHY_WRITE(sc, JMPHY_SPEC_ADDR, JMPHY_SPEC_ADDR_WRITE | 268216551Syongari JMPHY_EXT_COMM_2); 269216551Syongari 270216551Syongari /* XXX 20ms to complete recalibration. */ 271216551Syongari DELAY(20 * 1000); 272216551Syongari 273216551Syongari PHY_READ(sc, MII_100T2CR); 274216551Syongari PHY_WRITE(sc, JMPHY_SPEC_ADDR, JMPHY_SPEC_ADDR_READ | 275216551Syongari JMPHY_EXT_COMM_2); 276216551Syongari val = PHY_READ(sc, JMPHY_SPEC_DATA); 277216551Syongari val &= ~(0x0001 | 0x0002 | 0x0010); 278216551Syongari PHY_WRITE(sc, JMPHY_SPEC_DATA, val); 279216551Syongari PHY_WRITE(sc, JMPHY_SPEC_ADDR, JMPHY_SPEC_ADDR_WRITE | 280216551Syongari JMPHY_EXT_COMM_2); 281216551Syongari /* Disable PHY test mode. */ 282216551Syongari PHY_READ(sc, MII_100T2CR); 283216551Syongari t2cr &= ~GTCR_TEST_MASK; 284216551Syongari PHY_WRITE(sc, MII_100T2CR, t2cr); 285216551Syongari } 286179335Syongari} 287179335Syongari 288179335Syongaristatic uint16_t 289179335Syongarijmphy_anar(struct ifmedia_entry *ife) 290179335Syongari{ 291179335Syongari uint16_t anar; 292179335Syongari 293179335Syongari anar = 0; 294179335Syongari switch (IFM_SUBTYPE(ife->ifm_media)) { 295179335Syongari case IFM_AUTO: 296179335Syongari anar |= ANAR_TX_FD | ANAR_TX | ANAR_10_FD | ANAR_10; 297179335Syongari break; 298179335Syongari case IFM_1000_T: 299179335Syongari break; 300179335Syongari case IFM_100_TX: 301179335Syongari anar |= ANAR_TX | ANAR_TX_FD; 302179335Syongari break; 303179335Syongari case IFM_10_T: 304179335Syongari anar |= ANAR_10 | ANAR_10_FD; 305179335Syongari break; 306179335Syongari default: 307179335Syongari break; 308179335Syongari } 309179335Syongari 310179335Syongari return (anar); 311179335Syongari} 312179335Syongari 313179335Syongaristatic int 314215298Smariusjmphy_setmedia(struct mii_softc *sc, struct ifmedia_entry *ife) 315179335Syongari{ 316179335Syongari uint16_t anar, bmcr, gig; 317179335Syongari 318179335Syongari gig = 0; 319179335Syongari bmcr = PHY_READ(sc, MII_BMCR); 320179335Syongari switch (IFM_SUBTYPE(ife->ifm_media)) { 321179335Syongari case IFM_AUTO: 322179335Syongari gig |= GTCR_ADV_1000TFDX | GTCR_ADV_1000THDX; 323179335Syongari break; 324179335Syongari case IFM_1000_T: 325179335Syongari gig |= GTCR_ADV_1000TFDX | GTCR_ADV_1000THDX; 326179335Syongari break; 327179335Syongari case IFM_100_TX: 328179335Syongari case IFM_10_T: 329179335Syongari break; 330179335Syongari case IFM_NONE: 331179335Syongari PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_ISO | BMCR_PDOWN); 332179335Syongari return (EJUSTRETURN); 333179335Syongari default: 334179335Syongari return (EINVAL); 335179335Syongari } 336179335Syongari 337179335Syongari anar = jmphy_anar(ife); 338217414Smarius if ((IFM_SUBTYPE(ife->ifm_media) == IFM_AUTO || 339215298Smarius (ife->ifm_media & IFM_FDX) != 0) && 340217414Smarius ((ife->ifm_media & IFM_FLOW) != 0 || 341217414Smarius (sc->mii_flags & MIIF_FORCEPAUSE) != 0)) 342215298Smarius anar |= ANAR_PAUSE_TOWARDS; 343179335Syongari 344179335Syongari if ((sc->mii_flags & MIIF_HAVE_GTCR) != 0) { 345215298Smarius if (IFM_SUBTYPE(ife->ifm_media) == IFM_1000_T) { 346215298Smarius gig |= GTCR_MAN_MS; 347215298Smarius if ((ife->ifm_media & IFM_ETH_MASTER) != 0) 348215298Smarius gig |= GTCR_ADV_MS; 349215298Smarius } 350179335Syongari PHY_WRITE(sc, MII_100T2CR, gig); 351179335Syongari } 352179335Syongari PHY_WRITE(sc, MII_ANAR, anar | ANAR_CSMA); 353179335Syongari PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_AUTOEN | BMCR_STARTNEG); 354179335Syongari 355179335Syongari return (EJUSTRETURN); 356179335Syongari} 357