diff options
| author | ozaki-r <ozaki-r@NetBSD.org> | 2014-02-26 04:13:44 +0000 |
|---|---|---|
| committer | ozaki-r <ozaki-r@NetBSD.org> | 2014-02-26 04:13:44 +0000 |
| commit | eb93a5d64612d6fdf2b050a7925fef7c26647d79 (patch) | |
| tree | e332372e567c5a70f1b0f27ff1ce73904aebc148 /sys/dev | |
| parent | 0db6a39c63c516c482ca3e3090b4f5a5f6b302a1 (diff) | |
Add Micrel PHY (KSZ9021RN)
The new driver micphy is almost same as ukphy except that
micphy has a fixup for cpsw; a PHY with cpsw has to adjust
RGMII signal timing.
Reviewed by christos@
Diffstat (limited to 'sys/dev')
| -rw-r--r-- | sys/dev/mii/files.mii | 6 | ||||
| -rw-r--r-- | sys/dev/mii/micphy.c | 251 | ||||
| -rw-r--r-- | sys/dev/mii/miidevs | 6 |
3 files changed, 261 insertions, 2 deletions
diff --git a/sys/dev/mii/files.mii b/sys/dev/mii/files.mii index eac070679de..8ebb457b5c9 100644 --- a/sys/dev/mii/files.mii +++ b/sys/dev/mii/files.mii @@ -1,4 +1,4 @@ -# $NetBSD: files.mii,v 1.48 2011/01/26 18:48:12 bouyer Exp $ +# $NetBSD: files.mii,v 1.49 2014/02/26 04:13:44 ozaki-r Exp $ defflag opt_mii.h MIIVERBOSE @@ -148,3 +148,7 @@ file dev/mii/etphy.c etphy device rdcphy: mii_phy attach rdcphy at mii file dev/mii/rdcphy.c rdcphy + +device micphy: mii_phy, ukphy_subr +attach micphy at mii +file dev/mii/micphy.c micphy diff --git a/sys/dev/mii/micphy.c b/sys/dev/mii/micphy.c new file mode 100644 index 00000000000..1a0b310537b --- /dev/null +++ b/sys/dev/mii/micphy.c @@ -0,0 +1,251 @@ +/* $NetBSD: micphy.c,v 1.1 2014/02/26 04:13:44 ozaki-r Exp $ */ + +/*- + * 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 KSZ9021RN PHYs + */ + +#include <sys/cdefs.h> +__KERNEL_RCSID(0, "$NetBSD: micphy.c,v 1.1 2014/02/26 04:13:44 ozaki-r Exp $"); + +#include "opt_mii.h" + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/kernel.h> +#include <sys/device.h> +#include <sys/socket.h> +#include <sys/errno.h> + +#include <net/if.h> +#include <net/if_media.h> + +#include <dev/mii/mii.h> +#include <dev/mii/miivar.h> +#include <dev/mii/miidevs.h> + +static int micphymatch(device_t, cfdata_t, void *); +static void micphyattach(device_t, device_t, void *); + +CFATTACH_DECL3_NEW(micphy, sizeof(struct mii_softc), + micphymatch, micphyattach, mii_phy_detach, mii_phy_activate, NULL, NULL, + DVF_DETACH_SHUTDOWN); + +static int micphy_service(struct mii_softc *, struct mii_data *, int); +static void micphy_fixup(struct mii_softc *, int, int, device_t); + +static const struct mii_phy_funcs micphy_funcs = { + micphy_service, ukphy_status, mii_phy_reset, +}; + +static const struct mii_phydesc micphys[] = { + { MII_OUI_MICREL, MII_MODEL_MICREL_KSZ9021RNI, + MII_STR_MICREL_KSZ9021RNI }, + + { 0, 0, + NULL }, +}; + +static int +micphymatch(device_t parent, cfdata_t match, void *aux) +{ + struct mii_attach_args *ma = aux; + + if (mii_phy_match(ma, micphys) != NULL) + return 10; + + return 1; +} + +static void +micphyattach(device_t parent, device_t self, void *aux) +{ + struct mii_softc *sc = device_private(self); + struct mii_attach_args *ma = aux; + struct mii_data *mii = ma->mii_data; + int model = MII_MODEL(ma->mii_id2); + int rev = MII_REV(ma->mii_id2); + const struct mii_phydesc *mpd; + + mpd = mii_phy_match(ma, micphys); + aprint_naive(": Media interface\n"); + aprint_normal(": %s, rev. %d\n", mpd->mpd_name, rev); + + sc->mii_dev = self; + sc->mii_inst = mii->mii_instance; + sc->mii_phy = ma->mii_phyno; + sc->mii_funcs = &micphy_funcs; + sc->mii_pdata = mii; + sc->mii_flags = ma->mii_flags; + sc->mii_anegticks = MII_ANEGTICKS; + + PHY_RESET(sc); + + micphy_fixup(sc, model, rev, parent); + + sc->mii_capabilities = + PHY_READ(sc, MII_BMSR) & ma->mii_capmask; + if (sc->mii_capabilities & BMSR_EXTSTAT) + sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); + aprint_normal_dev(self, ""); + if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && + (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) + aprint_error("no media present"); + else + mii_phy_add_media(sc); + aprint_normal("\n"); +} + +static int +micphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) +{ + struct ifmedia_entry *ife = mii->mii_media.ifm_cur; + int reg; + + 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) { + reg = 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); + + /* Callback if something changed. */ + mii_phy_update(sc, cmd); + return 0; +} + +#define XREG_CONTROL 0x0b +#define XREG_WRITE 0x0c +#define XREG_READ 0x0d +#define XREG_CTL_SEL_READ 0x0000 +#define XREG_CTL_SEL_WRITE 0x8000 + +#define REG_RGMII_CLOCK_AND_CONTROL 0x104 +#define REG_RGMII_RX_DATA 0x105 + +static void micphy_writexreg(struct mii_softc *sc, uint32_t reg, uint32_t wval) +{ + int rval; + + PHY_WRITE(sc, XREG_CONTROL, XREG_CTL_SEL_WRITE | reg); + PHY_WRITE(sc, XREG_WRITE, wval); + PHY_WRITE(sc, XREG_CONTROL, XREG_CTL_SEL_READ | reg); + rval = PHY_READ(sc, XREG_READ); + KDASSERT(wval == rval); +} + +static void +micphy_fixup(struct mii_softc *sc, int model, int rev, device_t parent) +{ + switch (model) { + case MII_MODEL_MICREL_KSZ9021RNI: + if (!device_is_a(parent, "cpsw")) + break; + + aprint_normal_dev(sc->mii_dev, "adjusting RGMII signal timing for cpsw\n"); + + // RGMII RX Data Pad Skew + micphy_writexreg(sc, REG_RGMII_RX_DATA, 0x0000); + + // RGMII Clock and Control Pad Skew + micphy_writexreg(sc, REG_RGMII_CLOCK_AND_CONTROL, 0x9090); + + break; + } + + return; +} diff --git a/sys/dev/mii/miidevs b/sys/dev/mii/miidevs index 8181d3d11e2..bea2b56e660 100644 --- a/sys/dev/mii/miidevs +++ b/sys/dev/mii/miidevs @@ -1,4 +1,4 @@ -$NetBSD: miidevs,v 1.117 2013/12/21 15:16:23 kiyohara Exp $ +$NetBSD: miidevs,v 1.118 2014/02/26 04:13:44 ozaki-r Exp $ /*- * Copyright (c) 1998, 1999 The NetBSD Foundation, Inc. @@ -66,6 +66,7 @@ oui INTEL 0x00aa00 Intel oui JMICRON 0x00d831 JMicron oui LEVEL1 0x00207b Level 1 oui MARVELL 0x005043 Marvell Semiconductor +oui MICREL 0x0010a1 Micrel oui MYSON 0x00c0b4 Myson Technology oui NATSEMI 0x080017 National Semiconductor oui PMCSIERRA 0x00e004 PMC-Sierra @@ -260,6 +261,9 @@ model xxMARVELL E1116R 0x0024 Marvell 88E1116R Gigabit PHY model xxMARVELL E1116R_29 0x0029 Marvell 88E1116R Gigabit PHY model xxMARVELL E1543 0x002a Marvell 88E1543 Alaska Quad Port Gb PHY +/* Micrel PHYs */ +model MICREL KSZ9021RNI 0x0021 Micrel KSZ9021RNI 10/100/1000 PHY + /* Myson Technology PHYs */ model xxMYSON MTD972 0x0000 MTD972 10/100 media interface model MYSON MTD803 0x0000 MTD803 3-in-1 media interface |
