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diff --git a/sys/conf/files b/sys/conf/files
--- a/sys/conf/files
+++ b/sys/conf/files
@@ -2417,6 +2417,7 @@
dev/mii/bmtphy.c optional miibus | bmtphy
dev/mii/brgphy.c optional miibus | brgphy
dev/mii/ciphy.c optional miibus | ciphy
+dev/mii/dp83822phy.c optional miibus | dp83822phy
dev/mii/dp83867phy.c optional miibus | dp83867phy
dev/mii/e1000phy.c optional miibus | e1000phy
dev/mii/gentbi.c optional miibus | gentbi
diff --git a/sys/dev/mii/dp83822phy.c b/sys/dev/mii/dp83822phy.c
new file mode 100644
--- /dev/null
+++ b/sys/dev/mii/dp83822phy.c
@@ -0,0 +1,220 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
+ * Copyright (c) 2021 Alstom Group.
+ * Copyright (c) 2021 Semihalf.
+ * 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 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 AUTHOR 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.
+ */
+
+/*
+ * Driver for TI DP83822 Ethernet PHY
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/bus.h>
+#include <sys/kernel.h>
+#include <sys/module.h>
+#include <sys/resource.h>
+#include <sys/rman.h>
+#include <sys/socket.h>
+
+#include <machine/resource.h>
+
+#include <net/if.h>
+#include <net/if_media.h>
+
+#include <dev/mii/mii.h>
+#include <dev/mii/miivar.h>
+
+#include "miidevs.h"
+#include "miibus_if.h"
+
+#define BIT(x) (1 << (x))
+
+#define DP83822_PHYSTS 0x10
+#define DP83822_PHYSTS_LINK_UP BIT(0)
+#define DP83822_PHYSTS_SPEED_100 BIT(1)
+#define DP83822_PHYSTS_FD BIT(2)
+
+#define DP83822_PHYSCR 0x11
+#define DP83822_PHYSCR_INT_OE BIT(0) /* Behaviour of INT pin. */
+#define DP83822_PHYSCR_INT_EN BIT(1)
+
+#define DP83822_MISR1 0x12
+#define DP83822_MISR1_AN_CMPL_EN BIT(2)
+#define DP83822_MISR1_DP_CHG_EN BIT(3)
+#define DP83822_MISR1_SPD_CHG_EN BIT(4)
+#define DP83822_MISR1_LINK_CHG_EN BIT(5)
+#define DP83822_MISR1_INT_MASK 0xFF
+#define DP83822_MISR1_INT_STS_SHIFT 8
+
+#define DP83822_MISR2 0x13
+#define DP83822_MISR2_AN_ERR_EN BIT(6)
+#define DP83822_MISR2_INT_MASK 0xFF
+#define DP83822_MISR2_INT_STS_SHIFT 8
+
+static int dp_service(struct mii_softc*, struct mii_data*, int);
+static void dp_status(struct mii_softc*);
+
+struct dp83822_softc {
+ struct mii_softc mii_sc;
+ struct resource *irq_res;
+ void *irq_cookie;
+};
+
+static const struct mii_phydesc dpphys[] = {
+ MII_PHY_DESC(xxTI, DP83822)
+};
+
+static const struct mii_phy_funcs dpphy_funcs = {
+ dp_service,
+ ukphy_status,
+ mii_phy_reset
+};
+
+static void
+dp_intr(void *arg)
+{
+ struct mii_softc *sc = (struct mii_softc *)arg;
+ uint32_t status;
+
+ status = PHY_READ(sc, DP83822_MISR1);
+
+ if (!((status >> DP83822_MISR1_INT_STS_SHIFT) &
+ (status & DP83822_MISR1_INT_MASK)))
+ return;
+
+ PHY_STATUS(sc);
+ mii_phy_update(sc, MII_MEDIACHG);
+}
+
+static int
+dp_probe(device_t dev)
+{
+
+ return (mii_phy_dev_probe(dev, dpphys, BUS_PROBE_DEFAULT));
+}
+
+static int
+dp_attach(device_t dev)
+{
+ struct dp83822_softc *sc;
+ struct mii_softc *mii_sc;
+ uint32_t value;
+ int error, rid;
+
+ sc = device_get_softc(dev);
+ mii_sc = &sc->mii_sc;
+ mii_phy_dev_attach(dev, MIIF_NOMANPAUSE, &dpphy_funcs, 1);
+
+ PHY_RESET(mii_sc);
+
+ rid = 0;
+ sc->irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE);
+ if (sc->irq_res == NULL)
+ goto no_irq;
+
+ error = bus_setup_intr(dev, sc->irq_res, INTR_TYPE_NET | INTR_MPSAFE,
+ NULL, dp_intr, sc, &sc->irq_cookie);
+ if (error != 0) {
+ bus_release_resource(dev, SYS_RES_IRQ, 0, sc->irq_res);
+ sc->irq_res = NULL;
+ goto no_irq;
+ }
+
+ /*
+ * ACK and unmask all relevant interrupts.
+ * We have a single register that serves the purpose
+ * of both interrupt status and mask.
+ * Interrupts are cleared on read.
+ */
+ (void)PHY_READ(mii_sc, DP83822_MISR1);
+ value = DP83822_MISR1_AN_CMPL_EN |
+ DP83822_MISR1_DP_CHG_EN |
+ DP83822_MISR1_SPD_CHG_EN |
+ DP83822_MISR1_LINK_CHG_EN;
+ PHY_WRITE(mii_sc, DP83822_MISR1, value);
+ value = PHY_READ(mii_sc, DP83822_PHYSCR);
+ value |= DP83822_PHYSCR_INT_OE |
+ DP83822_PHYSCR_INT_EN;
+ PHY_WRITE(mii_sc, DP83822_PHYSCR, value);
+
+no_irq:
+ return (0);
+}
+
+static int
+dp_detach(device_t dev)
+{
+ struct dp83822_softc *sc;
+
+ sc = device_get_softc(dev);
+
+ bus_teardown_intr(dev, sc->irq_res, sc->irq_cookie);
+ bus_release_resource(dev, SYS_RES_IRQ, 0, sc->irq_res);
+
+ return (mii_phy_detach(dev));
+}
+
+static int
+dp_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;
+ }
+
+ PHY_STATUS(sc);
+ mii_phy_update(sc, cmd);
+ return (0);
+}
+
+static device_method_t dp_methods[] = {
+ DEVMETHOD(device_probe, dp_probe),
+ DEVMETHOD(device_attach, dp_attach),
+ DEVMETHOD(device_detach, dp_detach),
+ DEVMETHOD_END
+};
+
+static devclass_t dp_devclass;
+
+static driver_t dp_driver = {
+ "dp83822phy",
+ dp_methods,
+ sizeof(struct dp83822_softc)
+};
+
+DRIVER_MODULE(dp83822phy, miibus, dp_driver, dp_devclass, 0, 0);
diff --git a/sys/dev/mii/miidevs b/sys/dev/mii/miidevs
--- a/sys/dev/mii/miidevs
+++ b/sys/dev/mii/miidevs
@@ -337,6 +337,7 @@
model TI 100VGPMI 0x0002 ThunderLAN 100VG-AnyLan media interface
model TI TNETE2101 0x0003 TNETE2101 media interface
model xxTI DP83867 0x0023 High Immunity 10/100/1000 PHY
+model xxTI DP83822 0x0024 High Immunity 10/100 PHY
/* TDK Semiconductor PHYs */
model xxTSC 78Q2120 0x0014 78Q2120 10/100 media interface

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