385153aa98
the NIC drivers as well as the PHY drivers to take advantage of the
mii_attach() introduced in r213878 to get rid of certain hacks. For
the most part these were:
- Artificially limiting miibus_{read,write}reg methods to certain PHY
addresses; we now let mii_attach() only probe the PHY at the desired
address(es) instead.
- PHY drivers setting MIIF_* flags based on the NIC driver they hang
off from, partly even based on grabbing and using the softc of the
parent; we now pass these flags down from the NIC to the PHY drivers
via mii_attach(). This got us rid of all such hacks except those of
brgphy() in combination with bce(4) and bge(4), which is way beyond
what can be expressed with simple flags.
While at it, I took the opportunity to change the NIC drivers to pass
up the error returned by mii_attach() (previously by mii_phy_probe())
and unify the error message used in this case where and as appropriate
as mii_attach() actually can fail for a number of reasons, not just
because of no PHY(s) being present at the expected address(es).
Reviewed by: jhb, yongari
528 lines
13 KiB
C
528 lines
13 KiB
C
/*-
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* Copyright (c) 2003
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* Bill Paul <wpaul@windriver.com>. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Bill Paul.
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* 4. Neither the name of the author nor the names of any co-contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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/*
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* Driver for the RealTek 8169S/8110S/8211B/8211C internal 10/100/1000 PHY.
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <sys/socket.h>
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#include <sys/bus.h>
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#include <net/if.h>
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#include <net/if_arp.h>
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#include <net/if_media.h>
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#include <dev/mii/mii.h>
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#include <dev/mii/miivar.h>
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#include "miidevs.h"
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#include <dev/mii/rgephyreg.h>
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#include "miibus_if.h"
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#include <machine/bus.h>
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#include <pci/if_rlreg.h>
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static int rgephy_probe(device_t);
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static int rgephy_attach(device_t);
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struct rgephy_softc {
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struct mii_softc mii_sc;
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int mii_model;
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int mii_revision;
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};
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static device_method_t rgephy_methods[] = {
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/* device interface */
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DEVMETHOD(device_probe, rgephy_probe),
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DEVMETHOD(device_attach, rgephy_attach),
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DEVMETHOD(device_detach, mii_phy_detach),
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DEVMETHOD(device_shutdown, bus_generic_shutdown),
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{ 0, 0 }
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};
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static devclass_t rgephy_devclass;
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static driver_t rgephy_driver = {
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"rgephy",
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rgephy_methods,
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sizeof(struct rgephy_softc)
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};
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DRIVER_MODULE(rgephy, miibus, rgephy_driver, rgephy_devclass, 0, 0);
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static int rgephy_service(struct mii_softc *, struct mii_data *, int);
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static void rgephy_status(struct mii_softc *);
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static int rgephy_mii_phy_auto(struct mii_softc *);
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static void rgephy_reset(struct mii_softc *);
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static void rgephy_loop(struct mii_softc *);
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static void rgephy_load_dspcode(struct mii_softc *);
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static const struct mii_phydesc rgephys[] = {
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MII_PHY_DESC(xxREALTEK, RTL8169S),
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MII_PHY_END
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};
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static int
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rgephy_probe(device_t dev)
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{
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return (mii_phy_dev_probe(dev, rgephys, BUS_PROBE_DEFAULT));
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}
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static int
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rgephy_attach(device_t dev)
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{
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struct rgephy_softc *rsc;
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struct mii_softc *sc;
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struct mii_attach_args *ma;
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struct mii_data *mii;
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const char *sep = "";
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rsc = device_get_softc(dev);
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sc = &rsc->mii_sc;
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ma = device_get_ivars(dev);
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sc->mii_dev = device_get_parent(dev);
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mii = ma->mii_data;
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LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
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sc->mii_flags = miibus_get_flags(dev);
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sc->mii_inst = mii->mii_instance++;
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sc->mii_phy = ma->mii_phyno;
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sc->mii_service = rgephy_service;
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sc->mii_pdata = mii;
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rsc->mii_model = MII_MODEL(ma->mii_id2);
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rsc->mii_revision = MII_REV(ma->mii_id2);
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#define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL)
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#define PRINT(s) printf("%s%s", sep, s); sep = ", "
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#if 0
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ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, IFM_LOOP, sc->mii_inst),
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MII_MEDIA_100_TX);
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#endif
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sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
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sc->mii_capabilities &= ~BMSR_ANEG;
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if (sc->mii_capabilities & BMSR_EXTSTAT)
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sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR);
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device_printf(dev, " ");
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mii_phy_add_media(sc);
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/* RTL8169S do not report auto-sense; add manually. */
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ADD(IFM_MAKEWORD(IFM_ETHER, IFM_AUTO, 0, sc->mii_inst), MII_NMEDIA);
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sep = ", ";
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PRINT("auto");
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printf("\n");
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#undef ADD
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#undef PRINT
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rgephy_reset(sc);
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MIIBUS_MEDIAINIT(sc->mii_dev);
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return (0);
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}
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static int
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rgephy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
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{
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struct rgephy_softc *rsc;
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struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
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int reg, speed, gig, anar;
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rsc = (struct rgephy_softc *)sc;
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switch (cmd) {
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case MII_POLLSTAT:
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break;
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case MII_MEDIACHG:
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/*
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* If the interface is not up, don't do anything.
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*/
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if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
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break;
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rgephy_reset(sc); /* XXX hardware bug work-around */
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anar = PHY_READ(sc, RGEPHY_MII_ANAR);
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anar &= ~(RGEPHY_ANAR_TX_FD | RGEPHY_ANAR_TX |
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RGEPHY_ANAR_10_FD | RGEPHY_ANAR_10);
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switch (IFM_SUBTYPE(ife->ifm_media)) {
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case IFM_AUTO:
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#ifdef foo
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/*
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* If we're already in auto mode, just return.
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*/
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if (PHY_READ(sc, RGEPHY_MII_BMCR) & RGEPHY_BMCR_AUTOEN)
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return (0);
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#endif
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(void) rgephy_mii_phy_auto(sc);
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break;
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case IFM_1000_T:
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speed = RGEPHY_S1000;
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goto setit;
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case IFM_100_TX:
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speed = RGEPHY_S100;
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anar |= RGEPHY_ANAR_TX_FD | RGEPHY_ANAR_TX;
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goto setit;
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case IFM_10_T:
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speed = RGEPHY_S10;
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anar |= RGEPHY_ANAR_10_FD | RGEPHY_ANAR_10;
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setit:
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rgephy_loop(sc);
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if ((ife->ifm_media & IFM_GMASK) == IFM_FDX) {
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speed |= RGEPHY_BMCR_FDX;
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gig = RGEPHY_1000CTL_AFD;
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anar &= ~(RGEPHY_ANAR_TX | RGEPHY_ANAR_10);
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} else {
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gig = RGEPHY_1000CTL_AHD;
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anar &=
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~(RGEPHY_ANAR_TX_FD | RGEPHY_ANAR_10_FD);
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}
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if (IFM_SUBTYPE(ife->ifm_media) != IFM_1000_T) {
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PHY_WRITE(sc, RGEPHY_MII_1000CTL, 0);
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PHY_WRITE(sc, RGEPHY_MII_ANAR, anar);
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PHY_WRITE(sc, RGEPHY_MII_BMCR, speed |
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RGEPHY_BMCR_AUTOEN | RGEPHY_BMCR_STARTNEG);
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break;
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}
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/*
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* When setting the link manually, one side must
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* be the master and the other the slave. However
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* ifmedia doesn't give us a good way to specify
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* this, so we fake it by using one of the LINK
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* flags. If LINK0 is set, we program the PHY to
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* be a master, otherwise it's a slave.
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*/
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if ((mii->mii_ifp->if_flags & IFF_LINK0)) {
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PHY_WRITE(sc, RGEPHY_MII_1000CTL,
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gig|RGEPHY_1000CTL_MSE|RGEPHY_1000CTL_MSC);
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} else {
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PHY_WRITE(sc, RGEPHY_MII_1000CTL,
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gig|RGEPHY_1000CTL_MSE);
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}
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PHY_WRITE(sc, RGEPHY_MII_BMCR, speed |
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RGEPHY_BMCR_AUTOEN | RGEPHY_BMCR_STARTNEG);
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break;
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case IFM_NONE:
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PHY_WRITE(sc, MII_BMCR, BMCR_ISO|BMCR_PDOWN);
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break;
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case IFM_100_T4:
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default:
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return (EINVAL);
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}
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break;
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case MII_TICK:
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/*
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* Is the interface even up?
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*/
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if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
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return (0);
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/*
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* Only used for autonegotiation.
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*/
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if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) {
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sc->mii_ticks = 0;
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break;
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}
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/*
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* Check to see if we have link. If we do, we don't
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* need to restart the autonegotiation process. Read
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* the BMSR twice in case it's latched.
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*/
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if (rsc->mii_revision >= 2) {
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/* RTL8211B(L) */
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reg = PHY_READ(sc, RGEPHY_MII_SSR);
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if (reg & RGEPHY_SSR_LINK) {
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sc->mii_ticks = 0;
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break;
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}
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} else {
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reg = PHY_READ(sc, RL_GMEDIASTAT);
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if (reg & RL_GMEDIASTAT_LINK) {
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sc->mii_ticks = 0;
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break;
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}
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}
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/* Announce link loss right after it happens. */
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if (sc->mii_ticks++ == 0)
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break;
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/* Only retry autonegotiation every mii_anegticks seconds. */
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if (sc->mii_ticks <= sc->mii_anegticks)
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return (0);
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sc->mii_ticks = 0;
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rgephy_mii_phy_auto(sc);
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break;
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}
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/* Update the media status. */
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rgephy_status(sc);
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/*
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* Callback if something changed. Note that we need to poke
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* the DSP on the RealTek PHYs if the media changes.
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*
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*/
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if (sc->mii_media_active != mii->mii_media_active ||
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sc->mii_media_status != mii->mii_media_status ||
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cmd == MII_MEDIACHG) {
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rgephy_load_dspcode(sc);
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}
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mii_phy_update(sc, cmd);
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return (0);
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}
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static void
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rgephy_status(struct mii_softc *sc)
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{
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struct rgephy_softc *rsc;
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struct mii_data *mii = sc->mii_pdata;
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int bmsr, bmcr;
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uint16_t ssr;
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mii->mii_media_status = IFM_AVALID;
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mii->mii_media_active = IFM_ETHER;
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rsc = (struct rgephy_softc *)sc;
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if (rsc->mii_revision >= 2) {
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ssr = PHY_READ(sc, RGEPHY_MII_SSR);
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if (ssr & RGEPHY_SSR_LINK)
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mii->mii_media_status |= IFM_ACTIVE;
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} else {
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bmsr = PHY_READ(sc, RL_GMEDIASTAT);
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if (bmsr & RL_GMEDIASTAT_LINK)
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mii->mii_media_status |= IFM_ACTIVE;
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}
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bmsr = PHY_READ(sc, RGEPHY_MII_BMSR);
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bmcr = PHY_READ(sc, RGEPHY_MII_BMCR);
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if (bmcr & RGEPHY_BMCR_ISO) {
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mii->mii_media_active |= IFM_NONE;
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mii->mii_media_status = 0;
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return;
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}
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if (bmcr & RGEPHY_BMCR_LOOP)
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mii->mii_media_active |= IFM_LOOP;
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if (bmcr & RGEPHY_BMCR_AUTOEN) {
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if ((bmsr & RGEPHY_BMSR_ACOMP) == 0) {
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/* Erg, still trying, I guess... */
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mii->mii_media_active |= IFM_NONE;
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return;
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}
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}
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if (rsc->mii_revision >= 2) {
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ssr = PHY_READ(sc, RGEPHY_MII_SSR);
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switch (ssr & RGEPHY_SSR_SPD_MASK) {
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case RGEPHY_SSR_S1000:
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mii->mii_media_active |= IFM_1000_T;
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break;
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case RGEPHY_SSR_S100:
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mii->mii_media_active |= IFM_100_TX;
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break;
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case RGEPHY_SSR_S10:
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mii->mii_media_active |= IFM_10_T;
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break;
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default:
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mii->mii_media_active |= IFM_NONE;
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break;
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}
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if (ssr & RGEPHY_SSR_FDX)
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mii->mii_media_active |= IFM_FDX;
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else
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mii->mii_media_active |= IFM_HDX;
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} else {
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bmsr = PHY_READ(sc, RL_GMEDIASTAT);
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if (bmsr & RL_GMEDIASTAT_1000MBPS)
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mii->mii_media_active |= IFM_1000_T;
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else if (bmsr & RL_GMEDIASTAT_100MBPS)
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mii->mii_media_active |= IFM_100_TX;
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else if (bmsr & RL_GMEDIASTAT_10MBPS)
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mii->mii_media_active |= IFM_10_T;
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else
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mii->mii_media_active |= IFM_NONE;
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if (bmsr & RL_GMEDIASTAT_FDX)
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mii->mii_media_active |= IFM_FDX;
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else
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mii->mii_media_active |= IFM_HDX;
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}
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}
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static int
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rgephy_mii_phy_auto(struct mii_softc *mii)
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{
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rgephy_loop(mii);
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rgephy_reset(mii);
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PHY_WRITE(mii, RGEPHY_MII_ANAR,
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BMSR_MEDIA_TO_ANAR(mii->mii_capabilities) | ANAR_CSMA);
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DELAY(1000);
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PHY_WRITE(mii, RGEPHY_MII_1000CTL,
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RGEPHY_1000CTL_AHD|RGEPHY_1000CTL_AFD);
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DELAY(1000);
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PHY_WRITE(mii, RGEPHY_MII_BMCR,
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RGEPHY_BMCR_AUTOEN | RGEPHY_BMCR_STARTNEG);
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DELAY(100);
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return (EJUSTRETURN);
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}
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static void
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rgephy_loop(struct mii_softc *sc)
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{
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struct rgephy_softc *rsc;
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int i;
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rsc = (struct rgephy_softc *)sc;
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if (rsc->mii_revision < 2) {
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PHY_WRITE(sc, RGEPHY_MII_BMCR, RGEPHY_BMCR_PDOWN);
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DELAY(1000);
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}
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for (i = 0; i < 15000; i++) {
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if (!(PHY_READ(sc, RGEPHY_MII_BMSR) & RGEPHY_BMSR_LINK)) {
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#if 0
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device_printf(sc->mii_dev, "looped %d\n", i);
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#endif
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break;
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}
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DELAY(10);
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}
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}
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#define PHY_SETBIT(x, y, z) \
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PHY_WRITE(x, y, (PHY_READ(x, y) | (z)))
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#define PHY_CLRBIT(x, y, z) \
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PHY_WRITE(x, y, (PHY_READ(x, y) & ~(z)))
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/*
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* Initialize RealTek PHY per the datasheet. The DSP in the PHYs of
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* existing revisions of the 8169S/8110S chips need to be tuned in
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* order to reliably negotiate a 1000Mbps link. This is only needed
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* for rev 0 and rev 1 of the PHY. Later versions work without
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* any fixups.
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*/
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static void
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rgephy_load_dspcode(struct mii_softc *sc)
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{
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struct rgephy_softc *rsc;
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int val;
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|
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rsc = (struct rgephy_softc *)sc;
|
|
if (rsc->mii_revision >= 2)
|
|
return;
|
|
|
|
PHY_WRITE(sc, 31, 0x0001);
|
|
PHY_WRITE(sc, 21, 0x1000);
|
|
PHY_WRITE(sc, 24, 0x65C7);
|
|
PHY_CLRBIT(sc, 4, 0x0800);
|
|
val = PHY_READ(sc, 4) & 0xFFF;
|
|
PHY_WRITE(sc, 4, val);
|
|
PHY_WRITE(sc, 3, 0x00A1);
|
|
PHY_WRITE(sc, 2, 0x0008);
|
|
PHY_WRITE(sc, 1, 0x1020);
|
|
PHY_WRITE(sc, 0, 0x1000);
|
|
PHY_SETBIT(sc, 4, 0x0800);
|
|
PHY_CLRBIT(sc, 4, 0x0800);
|
|
val = (PHY_READ(sc, 4) & 0xFFF) | 0x7000;
|
|
PHY_WRITE(sc, 4, val);
|
|
PHY_WRITE(sc, 3, 0xFF41);
|
|
PHY_WRITE(sc, 2, 0xDE60);
|
|
PHY_WRITE(sc, 1, 0x0140);
|
|
PHY_WRITE(sc, 0, 0x0077);
|
|
val = (PHY_READ(sc, 4) & 0xFFF) | 0xA000;
|
|
PHY_WRITE(sc, 4, val);
|
|
PHY_WRITE(sc, 3, 0xDF01);
|
|
PHY_WRITE(sc, 2, 0xDF20);
|
|
PHY_WRITE(sc, 1, 0xFF95);
|
|
PHY_WRITE(sc, 0, 0xFA00);
|
|
val = (PHY_READ(sc, 4) & 0xFFF) | 0xB000;
|
|
PHY_WRITE(sc, 4, val);
|
|
PHY_WRITE(sc, 3, 0xFF41);
|
|
PHY_WRITE(sc, 2, 0xDE20);
|
|
PHY_WRITE(sc, 1, 0x0140);
|
|
PHY_WRITE(sc, 0, 0x00BB);
|
|
val = (PHY_READ(sc, 4) & 0xFFF) | 0xF000;
|
|
PHY_WRITE(sc, 4, val);
|
|
PHY_WRITE(sc, 3, 0xDF01);
|
|
PHY_WRITE(sc, 2, 0xDF20);
|
|
PHY_WRITE(sc, 1, 0xFF95);
|
|
PHY_WRITE(sc, 0, 0xBF00);
|
|
PHY_SETBIT(sc, 4, 0x0800);
|
|
PHY_CLRBIT(sc, 4, 0x0800);
|
|
PHY_WRITE(sc, 31, 0x0000);
|
|
|
|
DELAY(40);
|
|
}
|
|
|
|
static void
|
|
rgephy_reset(struct mii_softc *sc)
|
|
{
|
|
struct rgephy_softc *rsc;
|
|
uint16_t ssr;
|
|
|
|
rsc = (struct rgephy_softc *)sc;
|
|
if (rsc->mii_revision == 3) {
|
|
/* RTL8211C(L) */
|
|
ssr = PHY_READ(sc, RGEPHY_MII_SSR);
|
|
if ((ssr & RGEPHY_SSR_ALDPS) != 0) {
|
|
ssr &= ~RGEPHY_SSR_ALDPS;
|
|
PHY_WRITE(sc, RGEPHY_MII_SSR, ssr);
|
|
}
|
|
}
|
|
|
|
mii_phy_reset(sc);
|
|
DELAY(1000);
|
|
rgephy_load_dspcode(sc);
|
|
}
|