2 * Copyright (c) 2008, Pyun YongHyeon <yongari@FreeBSD.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice unmodified, this list of conditions, and the following
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 #include <sys/cdefs.h>
29 __FBSDID("$FreeBSD$");
32 * Driver for the JMicron JMP211 10/100/1000, JMP202 10/100 PHY.
35 #include <sys/param.h>
36 #include <sys/systm.h>
37 #include <sys/kernel.h>
38 #include <sys/module.h>
39 #include <sys/socket.h>
43 #include <net/if_media.h>
45 #include <dev/mii/mii.h>
46 #include <dev/mii/miivar.h>
49 #include <dev/mii/jmphyreg.h>
51 #include "miibus_if.h"
53 static int jmphy_probe(device_t);
54 static int jmphy_attach(device_t);
55 static void jmphy_reset(struct mii_softc *);
56 static uint16_t jmphy_anar(struct ifmedia_entry *);
57 static int jmphy_setmedia(struct mii_softc *, struct ifmedia_entry *);
59 static device_method_t jmphy_methods[] = {
60 /* Device interface. */
61 DEVMETHOD(device_probe, jmphy_probe),
62 DEVMETHOD(device_attach, jmphy_attach),
63 DEVMETHOD(device_detach, mii_phy_detach),
64 DEVMETHOD(device_shutdown, bus_generic_shutdown),
68 static devclass_t jmphy_devclass;
69 static driver_t jmphy_driver = {
72 sizeof(struct mii_softc)
75 DRIVER_MODULE(jmphy, miibus, jmphy_driver, jmphy_devclass, 0, 0);
77 static int jmphy_service(struct mii_softc *, struct mii_data *, int);
78 static void jmphy_status(struct mii_softc *);
80 static const struct mii_phydesc jmphys[] = {
81 MII_PHY_DESC(JMICRON, JMP202),
82 MII_PHY_DESC(JMICRON, JMP211),
86 static const struct mii_phy_funcs jmphy_funcs = {
93 jmphy_probe(device_t dev)
96 return (mii_phy_dev_probe(dev, jmphys, BUS_PROBE_DEFAULT));
100 jmphy_attach(device_t dev)
102 struct mii_attach_args *ma;
105 ma = device_get_ivars(dev);
107 if (strcmp(ma->mii_data->mii_ifp->if_dname, "jme") == 0 &&
108 (miibus_get_flags(dev) & MIIF_MACPRIV0) != 0)
109 flags |= MIIF_PHYPRIV0;
110 mii_phy_dev_attach(dev, flags, &jmphy_funcs, 1);
115 jmphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
117 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
125 * If the interface is not up, don't do anything.
127 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
130 if (jmphy_setmedia(sc, ife) != EJUSTRETURN)
136 * Is the interface even up?
138 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
142 * Only used for autonegotiation.
144 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) {
149 /* Check for link. */
150 if ((PHY_READ(sc, JMPHY_SSR) & JMPHY_SSR_LINK_UP) != 0) {
155 /* Announce link loss right after it happens. */
156 if (sc->mii_ticks++ == 0)
158 if (sc->mii_ticks <= sc->mii_anegticks)
162 (void)jmphy_setmedia(sc, ife);
166 /* Update the media status. */
169 /* Callback if something changed. */
170 mii_phy_update(sc, cmd);
175 jmphy_status(struct mii_softc *sc)
177 struct mii_data *mii = sc->mii_pdata;
180 mii->mii_media_status = IFM_AVALID;
181 mii->mii_media_active = IFM_ETHER;
183 ssr = PHY_READ(sc, JMPHY_SSR);
184 if ((ssr & JMPHY_SSR_LINK_UP) != 0)
185 mii->mii_media_status |= IFM_ACTIVE;
187 bmcr = PHY_READ(sc, MII_BMCR);
188 if ((bmcr & BMCR_ISO) != 0) {
189 mii->mii_media_active |= IFM_NONE;
190 mii->mii_media_status = 0;
194 if ((bmcr & BMCR_LOOP) != 0)
195 mii->mii_media_active |= IFM_LOOP;
197 if ((ssr & JMPHY_SSR_SPD_DPLX_RESOLVED) == 0) {
198 /* Erg, still trying, I guess... */
199 mii->mii_media_active |= IFM_NONE;
203 switch ((ssr & JMPHY_SSR_SPEED_MASK)) {
204 case JMPHY_SSR_SPEED_1000:
205 mii->mii_media_active |= IFM_1000_T;
207 * jmphy(4) got a valid link so reset mii_ticks.
208 * Resetting mii_ticks is needed in order to
209 * detect link loss after auto-negotiation.
213 case JMPHY_SSR_SPEED_100:
214 mii->mii_media_active |= IFM_100_TX;
217 case JMPHY_SSR_SPEED_10:
218 mii->mii_media_active |= IFM_10_T;
222 mii->mii_media_active |= IFM_NONE;
226 if ((ssr & JMPHY_SSR_DUPLEX) != 0)
227 mii->mii_media_active |= IFM_FDX | mii_phy_flowstatus(sc);
229 mii->mii_media_active |= IFM_HDX;
231 if (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T) {
232 if ((PHY_READ(sc, MII_100T2SR) & GTSR_MS_RES) != 0)
233 mii->mii_media_active |= IFM_ETH_MASTER;
238 jmphy_reset(struct mii_softc *sc)
243 /* Disable sleep mode. */
244 PHY_WRITE(sc, JMPHY_TMCTL,
245 PHY_READ(sc, JMPHY_TMCTL) & ~JMPHY_TMCTL_SLEEP_ENB);
246 PHY_WRITE(sc, MII_BMCR, BMCR_RESET | BMCR_AUTOEN);
248 for (i = 0; i < 1000; i++) {
250 if ((PHY_READ(sc, MII_BMCR) & BMCR_RESET) == 0)
253 /* Perform vendor recommended PHY calibration. */
254 if ((sc->mii_flags & MIIF_PHYPRIV0) != 0) {
255 /* Select PHY test mode 1. */
256 t2cr = PHY_READ(sc, MII_100T2CR);
257 t2cr &= ~GTCR_TEST_MASK;
259 PHY_WRITE(sc, MII_100T2CR, t2cr);
260 /* Apply calibration patch. */
261 PHY_WRITE(sc, JMPHY_SPEC_ADDR, JMPHY_SPEC_ADDR_READ |
263 val = PHY_READ(sc, JMPHY_SPEC_DATA);
265 val |= 0x0010 | 0x0001;
266 PHY_WRITE(sc, JMPHY_SPEC_DATA, val);
267 PHY_WRITE(sc, JMPHY_SPEC_ADDR, JMPHY_SPEC_ADDR_WRITE |
270 /* XXX 20ms to complete recalibration. */
273 PHY_READ(sc, MII_100T2CR);
274 PHY_WRITE(sc, JMPHY_SPEC_ADDR, JMPHY_SPEC_ADDR_READ |
276 val = PHY_READ(sc, JMPHY_SPEC_DATA);
277 val &= ~(0x0001 | 0x0002 | 0x0010);
278 PHY_WRITE(sc, JMPHY_SPEC_DATA, val);
279 PHY_WRITE(sc, JMPHY_SPEC_ADDR, JMPHY_SPEC_ADDR_WRITE |
281 /* Disable PHY test mode. */
282 PHY_READ(sc, MII_100T2CR);
283 t2cr &= ~GTCR_TEST_MASK;
284 PHY_WRITE(sc, MII_100T2CR, t2cr);
289 jmphy_anar(struct ifmedia_entry *ife)
294 switch (IFM_SUBTYPE(ife->ifm_media)) {
296 anar |= ANAR_TX_FD | ANAR_TX | ANAR_10_FD | ANAR_10;
301 anar |= ANAR_TX | ANAR_TX_FD;
304 anar |= ANAR_10 | ANAR_10_FD;
314 jmphy_setmedia(struct mii_softc *sc, struct ifmedia_entry *ife)
316 uint16_t anar, bmcr, gig;
319 bmcr = PHY_READ(sc, MII_BMCR);
320 switch (IFM_SUBTYPE(ife->ifm_media)) {
322 gig |= GTCR_ADV_1000TFDX | GTCR_ADV_1000THDX;
325 gig |= GTCR_ADV_1000TFDX | GTCR_ADV_1000THDX;
331 PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_ISO | BMCR_PDOWN);
332 return (EJUSTRETURN);
337 anar = jmphy_anar(ife);
338 if ((IFM_SUBTYPE(ife->ifm_media) == IFM_AUTO ||
339 (ife->ifm_media & IFM_FDX) != 0) &&
340 ((ife->ifm_media & IFM_FLOW) != 0 ||
341 (sc->mii_flags & MIIF_FORCEPAUSE) != 0))
342 anar |= ANAR_PAUSE_TOWARDS;
344 if ((sc->mii_flags & MIIF_HAVE_GTCR) != 0) {
345 if (IFM_SUBTYPE(ife->ifm_media) == IFM_1000_T) {
347 if ((ife->ifm_media & IFM_ETH_MASTER) != 0)
350 PHY_WRITE(sc, MII_100T2CR, gig);
352 PHY_WRITE(sc, MII_ANAR, anar | ANAR_CSMA);
353 PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_AUTOEN | BMCR_STARTNEG);
355 return (EJUSTRETURN);