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Add PHY-driver for KSZ8091RNB with 50MHz.
This adds a driver for the KSZ8091RNB PHY. This PHY needs some special treatment if it is clocked with a 50MHz clock.
This commit is contained in:
Christian Mauderer
parent
8645b55017
commit
61575f5c44
@ -1443,6 +1443,12 @@ class dev_net(builder.Module):
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],
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mm.generator['source']()
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)
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self.addRTEMSSourceFiles(
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[
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'sys/dev/mii/ksz8091rnb_50MHz.c',
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],
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mm.generator['source']()
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)
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#
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# Network Interface Controllers (NIC)
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186
rtemsbsd/sys/dev/mii/ksz8091rnb_50MHz.c
Normal file
186
rtemsbsd/sys/dev/mii/ksz8091rnb_50MHz.c
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@ -0,0 +1,186 @@
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#include <machine/rtems-bsd-kernel-space.h>
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/*-
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* Copyright (c) 1998, 1999 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
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* NASA Ames Research Center, and by Frank van der Linden.
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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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 THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*-
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* Copyright (c) 1997 Manuel Bouyer. 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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF 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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* A PHY driver for the KSZ8091RNB in a 50MHz configuration. This PHY needs an
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* extra bit set in one of it's config registers for the 50MHz mode. If you have
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* that hardware configuration, you can link in this driver.
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*
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* This driver is based on the ksz8091rnb.
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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/socket.h>
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#include <sys/errno.h>
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#include <sys/module.h>
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#include <sys/bus.h>
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#include <net/if.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 <rtems/bsd/local/miidevs.h>
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#include <rtems/bsd/local/miibus_if.h>
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#define MII_KSZ8091RNB_PHY_CTRL2 0x1F
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#define MII_KSZ8091RNB_PHY_CTRL2_REFCLK_SELECT 0x0080
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static int ksz8091rnb_probe(device_t);
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static int ksz8091rnb_attach(device_t);
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static device_method_t ksz8091rnb_methods[] = {
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/* device interface */
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DEVMETHOD(device_probe, ksz8091rnb_probe),
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DEVMETHOD(device_attach, ksz8091rnb_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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DEVMETHOD_END
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};
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static devclass_t ksz8091rnb_devclass;
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static driver_t ksz8091rnb_driver = {
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"ksz8091rnb",
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ksz8091rnb_methods,
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sizeof(struct mii_softc)
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};
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DRIVER_MODULE(ksz8091rnb, miibus, ksz8091rnb_driver, ksz8091rnb_devclass, 0, 0);
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static const struct mii_phydesc ksz8091rnbphys[] = {
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{
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.mpd_oui=MII_OUI_MICREL,
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.mpd_model=0x16,
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.mpd_name="Microchip KSZ8091RNB with 50MHz clock"
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},
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MII_PHY_END
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};
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static int ksz8091rnb_service(struct mii_softc *, struct mii_data *, int);
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static void ksz8091rnb_phy_reset(struct mii_softc *);
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static const struct mii_phy_funcs ksz8091rnb_funcs = {
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ksz8091rnb_service,
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ukphy_status,
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ksz8091rnb_phy_reset
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};
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static int
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ksz8091rnb_probe(device_t dev)
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{
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return (mii_phy_dev_probe(dev, ksz8091rnbphys, BUS_PROBE_DEFAULT));
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}
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static int
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ksz8091rnb_attach(device_t dev)
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{
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struct mii_softc *sc;
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sc = device_get_softc(dev);
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mii_phy_dev_attach(dev, MIIF_NOMANPAUSE | MIIF_NOISOLATE,
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&ksz8091rnb_funcs, 1);
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mii_phy_setmedia(sc);
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return (0);
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}
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static void
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ksz8091rnb_phy_reset(struct mii_softc *sc)
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{
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uint16_t ctrl2;
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mii_phy_reset(sc);
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/* Set 50MHz */
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ctrl2 = PHY_READ(sc, MII_KSZ8091RNB_PHY_CTRL2);
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ctrl2 |= MII_KSZ8091RNB_PHY_CTRL2_REFCLK_SELECT;
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PHY_WRITE(sc, MII_KSZ8091RNB_PHY_CTRL2, ctrl2);
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}
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static int
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ksz8091rnb_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
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{
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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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mii_phy_setmedia(sc);
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break;
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case MII_TICK:
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if (mii_phy_tick(sc) == EJUSTRETURN)
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return (0);
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break;
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}
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/* Update the media status. */
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PHY_STATUS(sc);
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/* Callback if something changed. */
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mii_phy_update(sc, cmd);
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return (0);
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}
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