diff --git a/sys/dev/neta/if_mvneta.c b/sys/dev/neta/if_mvneta.c
--- a/sys/dev/neta/if_mvneta.c
+++ b/sys/dev/neta/if_mvneta.c
@@ -65,6 +65,8 @@
 #include <sys/rman.h>
 #include <machine/resource.h>
 
+#include <dev/extres/clk/clk.h>
+
 #include <dev/mii/mii.h>
 #include <dev/mii/miivar.h>
 
@@ -200,9 +202,6 @@
 STATIC int mvneta_miibus_readreg(device_t, int, int);
 STATIC int mvneta_miibus_writereg(device_t, int, int, int);
 
-/* Clock */
-STATIC uint32_t mvneta_get_clk(void);
-
 static device_method_t mvneta_methods[] = {
 	/* Device interface */
 	DEVMETHOD(device_detach,	mvneta_detach),
@@ -344,16 +343,6 @@
 	{ mvneta_rxtxth_intr, "MVNETA aggregated interrupt" },
 };
 
-STATIC uint32_t
-mvneta_get_clk()
-{
-#if defined(__aarch64__)
-	return (A3700_TCLK_250MHZ);
-#else
-	return (get_tclk());
-#endif
-}
-
 static int
 mvneta_set_mac_address(struct mvneta_softc *sc, uint8_t *addr)
 {
@@ -541,7 +530,9 @@
 #if !defined(__aarch64__)
 	uint32_t reg;
 #endif
-
+#if defined(__aarch64__)
+	clk_t clk;
+#endif
 	sc = device_get_softc(self);
 	sc->dev = self;
 
@@ -563,6 +554,27 @@
 	MVNETA_WRITE(sc, MVNETA_PRXINIT, 0x00000001);
 	MVNETA_WRITE(sc, MVNETA_PTXINIT, 0x00000001);
 
+#if defined(__aarch64__)
+	error = clk_get_by_ofw_index(sc->dev, ofw_bus_get_node(sc->dev), 0,
+	    &clk);
+	if (error != 0) {
+		device_printf(sc->dev,
+			"Cannot get clock, using default frequency: %d\n",
+			A3700_TCLK_250MHZ);
+		sc->clk_freq = A3700_TCLK_250MHZ;
+	} else {
+		error = clk_get_freq(clk, &sc->clk_freq);
+		if (error != 0) {
+			device_printf(sc->dev,
+				"Cannot obtain frequency from parent clock\n");
+			bus_release_resources(sc->dev, res_spec, sc->res);
+			return (error);
+		}
+	}
+#else
+	sc->clk_freq = get_tclk();
+#endif
+
 #if !defined(__aarch64__)
 	/*
 	 * Disable port snoop for buffers and descriptors
@@ -1380,7 +1392,7 @@
 	rx = MVNETA_RX_RING(sc, q);
 	rx->dma = rx->cpu = 0;
 	rx->queue_th_received = MVNETA_RXTH_COUNT;
-	rx->queue_th_time = (mvneta_get_clk() / 1000) / 10; /* 0.1 [ms] */
+	rx->queue_th_time = (sc->clk_freq / 1000) / 10; /* 0.1 [ms] */
 
 	/* Initialize LRO */
 	rx->lro_enabled = FALSE;
@@ -3389,7 +3401,7 @@
 	mvneta_rx_lockq(sc, arg->queue);
 	rx = MVNETA_RX_RING(sc, arg->queue);
 	time_mvtclk = rx->queue_th_time;
-	time_us = ((uint64_t)time_mvtclk * 1000ULL * 1000ULL) / mvneta_get_clk();
+	time_us = ((uint64_t)time_mvtclk * 1000ULL * 1000ULL) / sc->clk_freq;
 	mvneta_rx_unlockq(sc, arg->queue);
 	mvneta_sc_unlock(sc);
 
@@ -3406,8 +3418,7 @@
 		mvneta_sc_unlock(sc);
 		return (EINVAL);
 	}
-	time_mvtclk =
-	    (uint64_t)mvneta_get_clk() * (uint64_t)time_us / (1000ULL * 1000ULL);
+	time_mvtclk = sc->clk_freq * (uint64_t)time_us / (1000ULL * 1000ULL);
 	rx->queue_th_time = time_mvtclk;
 	reg = MVNETA_PRXITTH_RITT(rx->queue_th_time);
 	MVNETA_WRITE(sc, MVNETA_PRXITTH(arg->queue), reg);
diff --git a/sys/dev/neta/if_mvnetavar.h b/sys/dev/neta/if_mvnetavar.h
--- a/sys/dev/neta/if_mvnetavar.h
+++ b/sys/dev/neta/if_mvnetavar.h
@@ -258,6 +258,8 @@
 	struct mtx	mtx;
 	struct resource *res[2];
 	void            *ih_cookie[1];
+	
+	uint64_t	clk_freq;
 
 	struct ifnet	*ifp;
 	uint32_t        mvneta_if_flags;