/*-
* Copyright (c) 1998, 1999, 2000 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
* NASA Ames Research Center, and by Frank van der Linden.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Copyright (c) 1997 Manuel Bouyer. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Driver for Micrel KSZ8xxx 10/100 and KSZ9xxx 10/100/1000 PHY.
*/
/* Type of link status register */
#define MICPHYF_LSTYPE_DEFAULT 0
#define MICPHYF_LSTYPE_1F_42 1
#define MICPHYF_LSTYPE_1E_20 2
#define MICPHYF_LSTYPE_GIGA 3
/* Return if the device is Gigabit (KSZ9021) */
#define KSZ_MODEL21H_GIGA(rev) \
((((rev) & 0x0e) == 0) ? true : false)
/*
* The 8081 has no "sticky bits" that survive a soft reset; several
* bits in the Phy Control Register 2 must be preserved across the
* reset. These bits are set up by the bootloader; they control how the
* phy interfaces to the board (such as clock frequency and LED
* behavior).
*/
if (sc->mii_mpd_model == MII_MODEL_MICREL_KSZ8081)
PHY_READ(sc, KSZ8051_PHYCTL2, ®);
mii_phy_reset(sc);
if (sc->mii_mpd_model == MII_MODEL_MICREL_KSZ8081)
PHY_WRITE(sc, KSZ8051_PHYCTL2, reg);
}
static int
micphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
{
struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
uint16_t reg;
KASSERT(mii_locked(mii));
switch (cmd) {
case MII_POLLSTAT:
/* If we're not polling our PHY instance, just return. */
if (IFM_INST(ife->ifm_media) != sc->mii_inst)
return 0;
break;
case MII_MEDIACHG:
/*
* If the media indicates a different PHY instance,
* isolate ourselves.
*/
if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
PHY_READ(sc, MII_BMCR, ®);
PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
return 0;
}
/* If the interface is not up, don't do anything. */
if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
break;
mii_phy_setmedia(sc);
break;
case MII_TICK:
/* If we're not currently selected, just return. */
if (IFM_INST(ife->ifm_media) != sc->mii_inst)
return 0;
if (mii_phy_tick(sc) == EJUSTRETURN)
return 0;
break;
case MII_DOWN:
mii_phy_down(sc);
return 0;
}
/* Update the media status. */
mii_phy_status(sc);
