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#include <machine/rtems-bsd-kernel-space.h>
/*-
* Copyright (c) 1998, 1999 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
/*
* A PHY driver for the KSZ8091RNB in a 50MHz configuration. This PHY needs an
* extra bit set in one of it's config registers for the 50MHz mode. If you have
* that hardware configuration, you can link in this driver.
*
* This driver is based on the ksz8091rnb.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/socket.h>
#include <sys/errno.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <net/if.h>
#include <net/if_media.h>
#include <dev/mii/mii.h>
#include <dev/mii/miivar.h>
#include <rtems/bsd/local/miidevs.h>
#include <rtems/bsd/local/miibus_if.h>
#define MII_KSZ8091RNB_PHY_CTRL2 0x1F
#define MII_KSZ8091RNB_PHY_CTRL2_REFCLK_SELECT 0x0080
static int ksz8091rnb_probe(device_t);
static int ksz8091rnb_attach(device_t);
static device_method_t ksz8091rnb_methods[] = {
/* device interface */
DEVMETHOD(device_probe, ksz8091rnb_probe),
DEVMETHOD(device_attach, ksz8091rnb_attach),
DEVMETHOD(device_detach, mii_phy_detach),
DEVMETHOD(device_shutdown, bus_generic_shutdown),
DEVMETHOD_END
};
static devclass_t ksz8091rnb_devclass;
static driver_t ksz8091rnb_driver = {
"ksz8091rnb",
ksz8091rnb_methods,
sizeof(struct mii_softc)
};
DRIVER_MODULE(ksz8091rnb, miibus, ksz8091rnb_driver, ksz8091rnb_devclass, 0, 0);
static const struct mii_phydesc ksz8091rnbphys[] = {
{
.mpd_oui=MII_OUI_MICREL,
.mpd_model=0x16,
.mpd_name="Microchip KSZ8091RNB with 50MHz clock"
},
MII_PHY_END
};
static int ksz8091rnb_service(struct mii_softc *, struct mii_data *, int);
static void ksz8091rnb_phy_reset(struct mii_softc *);
static const struct mii_phy_funcs ksz8091rnb_funcs = {
ksz8091rnb_service,
ukphy_status,
ksz8091rnb_phy_reset
};
static int
ksz8091rnb_probe(device_t dev)
{
return (mii_phy_dev_probe(dev, ksz8091rnbphys, BUS_PROBE_DEFAULT));
}
static int
ksz8091rnb_attach(device_t dev)
{
struct mii_softc *sc;
sc = device_get_softc(dev);
mii_phy_dev_attach(dev, MIIF_NOMANPAUSE | MIIF_NOISOLATE,
&ksz8091rnb_funcs, 1);
mii_phy_setmedia(sc);
return (0);
}
static void
ksz8091rnb_phy_reset(struct mii_softc *sc)
{
uint16_t ctrl2;
mii_phy_reset(sc);
/* Set 50MHz */
ctrl2 = PHY_READ(sc, MII_KSZ8091RNB_PHY_CTRL2);
ctrl2 |= MII_KSZ8091RNB_PHY_CTRL2_REFCLK_SELECT;
PHY_WRITE(sc, MII_KSZ8091RNB_PHY_CTRL2, ctrl2);
}
static int
ksz8091rnb_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
{
switch (cmd) {
case MII_POLLSTAT:
break;
case MII_MEDIACHG:
mii_phy_setmedia(sc);
break;
case MII_TICK:
if (mii_phy_tick(sc) == EJUSTRETURN)
return (0);
break;
}
/* Update the media status. */
PHY_STATUS(sc);
/* Callback if something changed. */
mii_phy_update(sc, cmd);
return (0);
}
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