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("$FreeBSD$"); 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> 43257184Sglebius#include <net/if_var.h> 44179335Syongari#include <net/if_media.h> 45179335Syongari 46179335Syongari#include <dev/mii/mii.h> 47179335Syongari#include <dev/mii/miivar.h> 48179335Syongari#include "miidevs.h" 49179335Syongari 50179335Syongari#include <dev/mii/jmphyreg.h> 51179335Syongari 52179335Syongari#include "miibus_if.h" 53179335Syongari 54215298Smariusstatic int jmphy_probe(device_t); 55215298Smariusstatic int jmphy_attach(device_t); 56179335Syongaristatic void jmphy_reset(struct mii_softc *); 57179335Syongaristatic uint16_t jmphy_anar(struct ifmedia_entry *); 58215298Smariusstatic int jmphy_setmedia(struct mii_softc *, struct ifmedia_entry *); 59179335Syongari 60179335Syongaristatic device_method_t jmphy_methods[] = { 61179335Syongari /* Device interface. */ 62179335Syongari DEVMETHOD(device_probe, jmphy_probe), 63179335Syongari DEVMETHOD(device_attach, jmphy_attach), 64179335Syongari DEVMETHOD(device_detach, mii_phy_detach), 65179335Syongari DEVMETHOD(device_shutdown, bus_generic_shutdown), 66227908Smarius DEVMETHOD_END 67179335Syongari}; 68179335Syongari 69179335Syongaristatic devclass_t jmphy_devclass; 70179335Syongaristatic driver_t jmphy_driver = { 71179335Syongari "jmphy", 72179335Syongari jmphy_methods, 73221407Smarius sizeof(struct mii_softc) 74179335Syongari}; 75179335Syongari 76179335SyongariDRIVER_MODULE(jmphy, miibus, jmphy_driver, jmphy_devclass, 0, 0); 77179335Syongari 78179335Syongaristatic int jmphy_service(struct mii_softc *, struct mii_data *, int); 79179335Syongaristatic void jmphy_status(struct mii_softc *); 80179335Syongari 81179335Syongaristatic const struct mii_phydesc jmphys[] = { 82179335Syongari MII_PHY_DESC(JMICRON, JMP202), 83179335Syongari MII_PHY_DESC(JMICRON, JMP211), 84179335Syongari MII_PHY_END 85179335Syongari}; 86179335Syongari 87221407Smariusstatic const struct mii_phy_funcs jmphy_funcs = { 88221407Smarius jmphy_service, 89221407Smarius jmphy_status, 90221407Smarius jmphy_reset 91221407Smarius}; 92221407Smarius 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{ 103221407Smarius u_int flags; 104179335Syongari 105221407Smarius flags = 0; 106277093Sglebius if (mii_dev_mac_match(dev, "jme") && 107221407Smarius (miibus_get_flags(dev) & MIIF_MACPRIV0) != 0) 108221407Smarius flags |= MIIF_PHYPRIV0; 109221407Smarius mii_phy_dev_attach(dev, flags, &jmphy_funcs, 1); 110213364Smarius return (0); 111179335Syongari} 112179335Syongari 113179335Syongaristatic int 114179335Syongarijmphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 115179335Syongari{ 116179335Syongari struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 117179335Syongari 118179335Syongari switch (cmd) { 119179335Syongari case MII_POLLSTAT: 120179335Syongari break; 121179335Syongari 122179335Syongari case MII_MEDIACHG: 123215298Smarius if (jmphy_setmedia(sc, ife) != EJUSTRETURN) 124179335Syongari return (EINVAL); 125179335Syongari break; 126179335Syongari 127179335Syongari case MII_TICK: 128179335Syongari /* 129179335Syongari * Only used for autonegotiation. 130179335Syongari */ 131179335Syongari if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) { 132179335Syongari sc->mii_ticks = 0; 133179335Syongari break; 134179335Syongari } 135179335Syongari 136179335Syongari /* Check for link. */ 137179335Syongari if ((PHY_READ(sc, JMPHY_SSR) & JMPHY_SSR_LINK_UP) != 0) { 138179335Syongari sc->mii_ticks = 0; 139179335Syongari break; 140179335Syongari } 141179335Syongari 142179335Syongari /* Announce link loss right after it happens. */ 143179335Syongari if (sc->mii_ticks++ == 0) 144179335Syongari break; 145179335Syongari if (sc->mii_ticks <= sc->mii_anegticks) 146179335Syongari return (0); 147179335Syongari 148179335Syongari sc->mii_ticks = 0; 149215298Smarius (void)jmphy_setmedia(sc, ife); 150179335Syongari break; 151179335Syongari } 152179335Syongari 153179335Syongari /* Update the media status. */ 154221407Smarius PHY_STATUS(sc); 155179335Syongari 156179335Syongari /* Callback if something changed. */ 157179335Syongari mii_phy_update(sc, cmd); 158179335Syongari return (0); 159179335Syongari} 160179335Syongari 161179335Syongaristatic void 162179335Syongarijmphy_status(struct mii_softc *sc) 163179335Syongari{ 164179335Syongari struct mii_data *mii = sc->mii_pdata; 165179335Syongari int bmcr, ssr; 166179335Syongari 167179335Syongari mii->mii_media_status = IFM_AVALID; 168179335Syongari mii->mii_media_active = IFM_ETHER; 169179335Syongari 170179335Syongari ssr = PHY_READ(sc, JMPHY_SSR); 171179335Syongari if ((ssr & JMPHY_SSR_LINK_UP) != 0) 172179335Syongari mii->mii_media_status |= IFM_ACTIVE; 173179335Syongari 174179335Syongari bmcr = PHY_READ(sc, MII_BMCR); 175179335Syongari if ((bmcr & BMCR_ISO) != 0) { 176179335Syongari mii->mii_media_active |= IFM_NONE; 177179335Syongari mii->mii_media_status = 0; 178179335Syongari return; 179179335Syongari } 180179335Syongari 181179335Syongari if ((bmcr & BMCR_LOOP) != 0) 182179335Syongari mii->mii_media_active |= IFM_LOOP; 183179335Syongari 184179335Syongari if ((ssr & JMPHY_SSR_SPD_DPLX_RESOLVED) == 0) { 185179335Syongari /* Erg, still trying, I guess... */ 186179335Syongari mii->mii_media_active |= IFM_NONE; 187179335Syongari return; 188179335Syongari } 189179335Syongari 190179335Syongari switch ((ssr & JMPHY_SSR_SPEED_MASK)) { 191179335Syongari case JMPHY_SSR_SPEED_1000: 192179335Syongari mii->mii_media_active |= IFM_1000_T; 193179335Syongari /* 194179335Syongari * jmphy(4) got a valid link so reset mii_ticks. 195179335Syongari * Resetting mii_ticks is needed in order to 196179335Syongari * detect link loss after auto-negotiation. 197179335Syongari */ 198179335Syongari sc->mii_ticks = 0; 199179335Syongari break; 200179335Syongari case JMPHY_SSR_SPEED_100: 201179335Syongari mii->mii_media_active |= IFM_100_TX; 202179335Syongari sc->mii_ticks = 0; 203179335Syongari break; 204179335Syongari case JMPHY_SSR_SPEED_10: 205179335Syongari mii->mii_media_active |= IFM_10_T; 206179335Syongari sc->mii_ticks = 0; 207179335Syongari break; 208179335Syongari default: 209179335Syongari mii->mii_media_active |= IFM_NONE; 210179335Syongari return; 211179335Syongari } 212179335Syongari 213179335Syongari if ((ssr & JMPHY_SSR_DUPLEX) != 0) 214215298Smarius mii->mii_media_active |= IFM_FDX | mii_phy_flowstatus(sc); 215179335Syongari else 216179335Syongari mii->mii_media_active |= IFM_HDX; 217215298Smarius 218179335Syongari if (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T) { 219179335Syongari if ((PHY_READ(sc, MII_100T2SR) & GTSR_MS_RES) != 0) 220179335Syongari mii->mii_media_active |= IFM_ETH_MASTER; 221179335Syongari } 222179335Syongari} 223179335Syongari 224179335Syongaristatic void 225179335Syongarijmphy_reset(struct mii_softc *sc) 226179335Syongari{ 227216551Syongari uint16_t t2cr, val; 228179335Syongari int i; 229179335Syongari 230179335Syongari /* Disable sleep mode. */ 231179335Syongari PHY_WRITE(sc, JMPHY_TMCTL, 232179335Syongari PHY_READ(sc, JMPHY_TMCTL) & ~JMPHY_TMCTL_SLEEP_ENB); 233179335Syongari PHY_WRITE(sc, MII_BMCR, BMCR_RESET | BMCR_AUTOEN); 234179335Syongari 235179335Syongari for (i = 0; i < 1000; i++) { 236179335Syongari DELAY(1); 237179335Syongari if ((PHY_READ(sc, MII_BMCR) & BMCR_RESET) == 0) 238179335Syongari break; 239179335Syongari } 240216551Syongari /* Perform vendor recommended PHY calibration. */ 241216551Syongari if ((sc->mii_flags & MIIF_PHYPRIV0) != 0) { 242216551Syongari /* Select PHY test mode 1. */ 243216551Syongari t2cr = PHY_READ(sc, MII_100T2CR); 244216551Syongari t2cr &= ~GTCR_TEST_MASK; 245216551Syongari t2cr |= 0x2000; 246216551Syongari PHY_WRITE(sc, MII_100T2CR, t2cr); 247216551Syongari /* Apply calibration patch. */ 248216551Syongari PHY_WRITE(sc, JMPHY_SPEC_ADDR, JMPHY_SPEC_ADDR_READ | 249216551Syongari JMPHY_EXT_COMM_2); 250216551Syongari val = PHY_READ(sc, JMPHY_SPEC_DATA); 251216551Syongari val &= ~0x0002; 252216551Syongari val |= 0x0010 | 0x0001; 253216551Syongari PHY_WRITE(sc, JMPHY_SPEC_DATA, val); 254216551Syongari PHY_WRITE(sc, JMPHY_SPEC_ADDR, JMPHY_SPEC_ADDR_WRITE | 255216551Syongari JMPHY_EXT_COMM_2); 256216551Syongari 257216551Syongari /* XXX 20ms to complete recalibration. */ 258216551Syongari DELAY(20 * 1000); 259216551Syongari 260216551Syongari PHY_READ(sc, MII_100T2CR); 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 &= ~(0x0001 | 0x0002 | 0x0010); 265216551Syongari PHY_WRITE(sc, JMPHY_SPEC_DATA, val); 266216551Syongari PHY_WRITE(sc, JMPHY_SPEC_ADDR, JMPHY_SPEC_ADDR_WRITE | 267216551Syongari JMPHY_EXT_COMM_2); 268216551Syongari /* Disable PHY test mode. */ 269216551Syongari PHY_READ(sc, MII_100T2CR); 270216551Syongari t2cr &= ~GTCR_TEST_MASK; 271216551Syongari PHY_WRITE(sc, MII_100T2CR, t2cr); 272216551Syongari } 273179335Syongari} 274179335Syongari 275179335Syongaristatic uint16_t 276179335Syongarijmphy_anar(struct ifmedia_entry *ife) 277179335Syongari{ 278179335Syongari uint16_t anar; 279179335Syongari 280179335Syongari anar = 0; 281179335Syongari switch (IFM_SUBTYPE(ife->ifm_media)) { 282179335Syongari case IFM_AUTO: 283179335Syongari anar |= ANAR_TX_FD | ANAR_TX | ANAR_10_FD | ANAR_10; 284179335Syongari break; 285179335Syongari case IFM_1000_T: 286179335Syongari break; 287179335Syongari case IFM_100_TX: 288179335Syongari anar |= ANAR_TX | ANAR_TX_FD; 289179335Syongari break; 290179335Syongari case IFM_10_T: 291179335Syongari anar |= ANAR_10 | ANAR_10_FD; 292179335Syongari break; 293179335Syongari default: 294179335Syongari break; 295179335Syongari } 296179335Syongari 297179335Syongari return (anar); 298179335Syongari} 299179335Syongari 300179335Syongaristatic int 301215298Smariusjmphy_setmedia(struct mii_softc *sc, struct ifmedia_entry *ife) 302179335Syongari{ 303179335Syongari uint16_t anar, bmcr, gig; 304179335Syongari 305179335Syongari gig = 0; 306179335Syongari bmcr = PHY_READ(sc, MII_BMCR); 307179335Syongari switch (IFM_SUBTYPE(ife->ifm_media)) { 308179335Syongari case IFM_AUTO: 309179335Syongari gig |= GTCR_ADV_1000TFDX | GTCR_ADV_1000THDX; 310179335Syongari break; 311179335Syongari case IFM_1000_T: 312179335Syongari gig |= GTCR_ADV_1000TFDX | GTCR_ADV_1000THDX; 313179335Syongari break; 314179335Syongari case IFM_100_TX: 315179335Syongari case IFM_10_T: 316179335Syongari break; 317179335Syongari case IFM_NONE: 318179335Syongari PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_ISO | BMCR_PDOWN); 319179335Syongari return (EJUSTRETURN); 320179335Syongari default: 321179335Syongari return (EINVAL); 322179335Syongari } 323179335Syongari 324179335Syongari anar = jmphy_anar(ife); 325217414Smarius if ((IFM_SUBTYPE(ife->ifm_media) == IFM_AUTO || 326215298Smarius (ife->ifm_media & IFM_FDX) != 0) && 327217414Smarius ((ife->ifm_media & IFM_FLOW) != 0 || 328217414Smarius (sc->mii_flags & MIIF_FORCEPAUSE) != 0)) 329215298Smarius anar |= ANAR_PAUSE_TOWARDS; 330179335Syongari 331179335Syongari if ((sc->mii_flags & MIIF_HAVE_GTCR) != 0) { 332215298Smarius if (IFM_SUBTYPE(ife->ifm_media) == IFM_1000_T) { 333215298Smarius gig |= GTCR_MAN_MS; 334215298Smarius if ((ife->ifm_media & IFM_ETH_MASTER) != 0) 335215298Smarius gig |= GTCR_ADV_MS; 336215298Smarius } 337179335Syongari PHY_WRITE(sc, MII_100T2CR, gig); 338179335Syongari } 339179335Syongari PHY_WRITE(sc, MII_ANAR, anar | ANAR_CSMA); 340179335Syongari PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_AUTOEN | BMCR_STARTNEG); 341179335Syongari 342179335Syongari return (EJUSTRETURN); 343179335Syongari} 344