3 * Bill Paul <wpaul@windriver.com>. All rights reserved.
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, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by Bill Paul.
16 * 4. Neither the name of the author nor the names of any co-contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
30 * THE POSSIBILITY OF SUCH DAMAGE.
33 #include <sys/cdefs.h>
34 __FBSDID("$FreeBSD$");
37 * Driver for the Cicada/Vitesse CS/VSC8xxx 10/100/1000 copper PHY.
40 #include <sys/param.h>
41 #include <sys/systm.h>
42 #include <sys/kernel.h>
43 #include <sys/module.h>
44 #include <sys/socket.h>
48 #include <net/if_arp.h>
49 #include <net/if_media.h>
51 #include <dev/mii/mii.h>
52 #include <dev/mii/miivar.h>
55 #include <dev/mii/ciphyreg.h>
57 #include "miibus_if.h"
59 #include <machine/bus.h>
61 #include <dev/vge/if_vgereg.h>
63 static int ciphy_probe(device_t);
64 static int ciphy_attach(device_t);
66 static device_method_t ciphy_methods[] = {
67 /* device interface */
68 DEVMETHOD(device_probe, ciphy_probe),
69 DEVMETHOD(device_attach, ciphy_attach),
70 DEVMETHOD(device_detach, mii_phy_detach),
71 DEVMETHOD(device_shutdown, bus_generic_shutdown),
75 static devclass_t ciphy_devclass;
77 static driver_t ciphy_driver = {
80 sizeof(struct mii_softc)
83 DRIVER_MODULE(ciphy, miibus, ciphy_driver, ciphy_devclass, 0, 0);
85 static int ciphy_service(struct mii_softc *, struct mii_data *, int);
86 static void ciphy_status(struct mii_softc *);
87 static void ciphy_reset(struct mii_softc *);
88 static void ciphy_fixup(struct mii_softc *);
90 static const struct mii_phydesc ciphys[] = {
91 MII_PHY_DESC(CICADA, CS8201),
92 MII_PHY_DESC(CICADA, CS8201A),
93 MII_PHY_DESC(CICADA, CS8201B),
94 MII_PHY_DESC(CICADA, CS8204),
95 MII_PHY_DESC(CICADA, CS8244),
96 MII_PHY_DESC(VITESSE, VSC8601),
101 ciphy_probe(device_t dev)
104 return (mii_phy_dev_probe(dev, ciphys, BUS_PROBE_DEFAULT));
108 ciphy_attach(device_t dev)
110 struct mii_softc *sc;
111 struct mii_attach_args *ma;
112 struct mii_data *mii;
114 sc = device_get_softc(dev);
115 ma = device_get_ivars(dev);
116 sc->mii_dev = device_get_parent(dev);
117 mii = device_get_softc(sc->mii_dev);
118 LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
120 sc->mii_inst = mii->mii_instance;
121 sc->mii_phy = ma->mii_phyno;
122 sc->mii_service = ciphy_service;
125 sc->mii_flags |= MIIF_NOISOLATE;
130 sc->mii_capabilities =
131 PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
132 if (sc->mii_capabilities & BMSR_EXTSTAT)
133 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR);
134 device_printf(dev, " ");
135 mii_phy_add_media(sc);
138 MIIBUS_MEDIAINIT(sc->mii_dev);
143 ciphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
145 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
151 * If we're not polling our PHY instance, just return.
153 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
159 * If the media indicates a different PHY instance,
162 if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
163 reg = PHY_READ(sc, MII_BMCR);
164 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
169 * If the interface is not up, don't do anything.
171 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
174 ciphy_fixup(sc); /* XXX hardware bug work-around */
176 switch (IFM_SUBTYPE(ife->ifm_media)) {
180 * If we're already in auto mode, just return.
182 if (PHY_READ(sc, CIPHY_MII_BMCR) & CIPHY_BMCR_AUTOEN)
185 (void) mii_phy_auto(sc);
196 if ((ife->ifm_media & IFM_GMASK) == IFM_FDX) {
197 speed |= CIPHY_BMCR_FDX;
198 gig = CIPHY_1000CTL_AFD;
200 gig = CIPHY_1000CTL_AHD;
203 PHY_WRITE(sc, CIPHY_MII_1000CTL, 0);
204 PHY_WRITE(sc, CIPHY_MII_BMCR, speed);
205 PHY_WRITE(sc, CIPHY_MII_ANAR, CIPHY_SEL_TYPE);
207 if (IFM_SUBTYPE(ife->ifm_media) != IFM_1000_T)
210 PHY_WRITE(sc, CIPHY_MII_1000CTL, gig);
211 PHY_WRITE(sc, CIPHY_MII_BMCR,
212 speed|CIPHY_BMCR_AUTOEN|CIPHY_BMCR_STARTNEG);
215 * When setting the link manually, one side must
216 * be the master and the other the slave. However
217 * ifmedia doesn't give us a good way to specify
218 * this, so we fake it by using one of the LINK
219 * flags. If LINK0 is set, we program the PHY to
220 * be a master, otherwise it's a slave.
222 if ((mii->mii_ifp->if_flags & IFF_LINK0)) {
223 PHY_WRITE(sc, CIPHY_MII_1000CTL,
224 gig|CIPHY_1000CTL_MSE|CIPHY_1000CTL_MSC);
226 PHY_WRITE(sc, CIPHY_MII_1000CTL,
227 gig|CIPHY_1000CTL_MSE);
231 PHY_WRITE(sc, MII_BMCR, BMCR_ISO|BMCR_PDOWN);
241 * If we're not currently selected, just return.
243 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
247 * Is the interface even up?
249 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
253 * Only used for autonegotiation.
255 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO)
259 * Check to see if we have link. If we do, we don't
260 * need to restart the autonegotiation process. Read
261 * the BMSR twice in case it's latched.
263 reg = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
268 * Only retry autonegotiation every 5 seconds.
270 if (++sc->mii_ticks <= MII_ANEGTICKS)
278 /* Update the media status. */
282 * Callback if something changed. Note that we need to poke
283 * apply fixups for certain PHY revs.
285 if (sc->mii_media_active != mii->mii_media_active ||
286 sc->mii_media_status != mii->mii_media_status ||
287 cmd == MII_MEDIACHG) {
290 mii_phy_update(sc, cmd);
295 ciphy_status(struct mii_softc *sc)
297 struct mii_data *mii = sc->mii_pdata;
300 mii->mii_media_status = IFM_AVALID;
301 mii->mii_media_active = IFM_ETHER;
303 bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
305 if (bmsr & BMSR_LINK)
306 mii->mii_media_status |= IFM_ACTIVE;
308 bmcr = PHY_READ(sc, CIPHY_MII_BMCR);
310 if (bmcr & CIPHY_BMCR_LOOP)
311 mii->mii_media_active |= IFM_LOOP;
313 if (bmcr & CIPHY_BMCR_AUTOEN) {
314 if ((bmsr & CIPHY_BMSR_ACOMP) == 0) {
315 /* Erg, still trying, I guess... */
316 mii->mii_media_active |= IFM_NONE;
321 bmsr = PHY_READ(sc, CIPHY_MII_AUXCSR);
322 switch (bmsr & CIPHY_AUXCSR_SPEED) {
324 mii->mii_media_active |= IFM_10_T;
327 mii->mii_media_active |= IFM_100_TX;
329 case CIPHY_SPEED1000:
330 mii->mii_media_active |= IFM_1000_T;
333 device_printf(sc->mii_dev, "unknown PHY speed %x\n",
334 bmsr & CIPHY_AUXCSR_SPEED);
338 if (bmsr & CIPHY_AUXCSR_FDX)
339 mii->mii_media_active |= IFM_FDX;
343 ciphy_reset(struct mii_softc *sc)
350 #define PHY_SETBIT(x, y, z) \
351 PHY_WRITE(x, y, (PHY_READ(x, y) | (z)))
352 #define PHY_CLRBIT(x, y, z) \
353 PHY_WRITE(x, y, (PHY_READ(x, y) & ~(z)))
356 ciphy_fixup(struct mii_softc *sc)
359 uint16_t status, speed;
362 model = MII_MODEL(PHY_READ(sc, CIPHY_MII_PHYIDR2));
363 status = PHY_READ(sc, CIPHY_MII_AUXCSR);
364 speed = status & CIPHY_AUXCSR_SPEED;
366 if (strcmp(device_get_name(device_get_parent(sc->mii_dev)),
368 /* need to set for 2.5V RGMII for NVIDIA adapters */
369 val = PHY_READ(sc, CIPHY_MII_ECTL1);
370 val &= ~(CIPHY_ECTL1_IOVOL | CIPHY_ECTL1_INTSEL);
371 val |= (CIPHY_IOVOL_2500MV | CIPHY_INTSEL_RGMII);
372 PHY_WRITE(sc, CIPHY_MII_ECTL1, val);
374 val = PHY_READ(sc, CIPHY_MII_AUXCSR);
375 val |= CIPHY_AUXCSR_MDPPS;
376 PHY_WRITE(sc, CIPHY_MII_AUXCSR, val);
377 val = PHY_READ(sc, CIPHY_MII_10BTCSR);
378 val |= CIPHY_10BTCSR_ECHO;
379 PHY_WRITE(sc, CIPHY_MII_10BTCSR, val);
383 case MII_MODEL_CICADA_CS8204:
384 case MII_MODEL_CICADA_CS8201:
386 /* Turn off "aux mode" (whatever that means) */
387 PHY_SETBIT(sc, CIPHY_MII_AUXCSR, CIPHY_AUXCSR_MDPPS);
390 * Work around speed polling bug in VT3119/VT3216
391 * when using MII in full duplex mode.
393 if ((speed == CIPHY_SPEED10 || speed == CIPHY_SPEED100) &&
394 (status & CIPHY_AUXCSR_FDX)) {
395 PHY_SETBIT(sc, CIPHY_MII_10BTCSR, CIPHY_10BTCSR_ECHO);
397 PHY_CLRBIT(sc, CIPHY_MII_10BTCSR, CIPHY_10BTCSR_ECHO);
400 /* Enable link/activity LED blink. */
401 PHY_SETBIT(sc, CIPHY_MII_LED, CIPHY_LED_LINKACTBLINK);
405 case MII_MODEL_CICADA_CS8201A:
406 case MII_MODEL_CICADA_CS8201B:
409 * Work around speed polling bug in VT3119/VT3216
410 * when using MII in full duplex mode.
412 if ((speed == CIPHY_SPEED10 || speed == CIPHY_SPEED100) &&
413 (status & CIPHY_AUXCSR_FDX)) {
414 PHY_SETBIT(sc, CIPHY_MII_10BTCSR, CIPHY_10BTCSR_ECHO);
416 PHY_CLRBIT(sc, CIPHY_MII_10BTCSR, CIPHY_10BTCSR_ECHO);
420 case MII_MODEL_CICADA_CS8244:
421 case MII_MODEL_VITESSE_VSC8601:
424 device_printf(sc->mii_dev, "unknown CICADA PHY model %x\n",