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[src/trunk]: src/sys/dev/mii Add Micrel PHY (KSZ9021RN)
details: https://anonhg.NetBSD.org/src/rev/d0331212791f
branches: trunk
changeset: 327054:d0331212791f
user: ozaki-r <ozaki-r%NetBSD.org@localhost>
date: Wed Feb 26 04:13:44 2014 +0000
description:
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:
sys/dev/mii/files.mii | 6 +-
sys/dev/mii/micphy.c | 251 ++++++++++++++++++++++++++++++++++++++++++++++++++
sys/dev/mii/miidevs | 6 +-
3 files changed, 261 insertions(+), 2 deletions(-)
diffs (299 lines):
diff -r 184f69f40b57 -r d0331212791f sys/dev/mii/files.mii
--- a/sys/dev/mii/files.mii Wed Feb 26 03:58:33 2014 +0000
+++ b/sys/dev/mii/files.mii Wed Feb 26 04:13:44 2014 +0000
@@ -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 @@
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 -r 184f69f40b57 -r d0331212791f sys/dev/mii/micphy.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/dev/mii/micphy.c Wed Feb 26 04:13:44 2014 +0000
@@ -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 -r 184f69f40b57 -r d0331212791f sys/dev/mii/miidevs
--- a/sys/dev/mii/miidevs Wed Feb 26 03:58:33 2014 +0000
+++ b/sys/dev/mii/miidevs Wed Feb 26 04:13:44 2014 +0000
@@ -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 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_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
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