diff --git a/sys/dev/ed/if_ed.c b/sys/dev/ed/if_ed.c
index f16e517476f..d94a6884206 100644
--- a/sys/dev/ed/if_ed.c
+++ b/sys/dev/ed/if_ed.c
@@ -573,20 +573,8 @@ ed_init_locked(struct ed_softc *sc)
 	 */
 	ed_nic_outb(sc, ED_P0_TCR, 0);
 
-#ifdef ED_3C503
-	/*
-	 * If this is a 3Com board, the tranceiver must be software enabled
-	 * (there is no settable hardware default).
-	 */
-	if (sc->vendor == ED_VENDOR_3COM) {
-		if (ifp->if_flags & IFF_LINK2)
-			ed_asic_outb(sc, ED_3COM_CR, 0);
-		else
-			ed_asic_outb(sc, ED_3COM_CR, ED_3COM_CR_XSEL);
-	}
-#endif
 	if (sc->sc_mediachg)
-	    sc->sc_mediachg(sc);
+		sc->sc_mediachg(sc);
 
 	/*
 	 * Set 'running' flag, and clear output active flag.
@@ -1227,12 +1215,15 @@ ed_ioctl(struct ifnet *ifp, u_long command, caddr_t data)
 	case SIOCSIFFLAGS:
 		/*
 		 * If the interface is marked up and stopped, then start it.
+		 * If we're up and already running, then it may be a mediachg.
 		 * If it is marked down and running, then stop it.
 		 */
 		ED_LOCK(sc);
 		if (ifp->if_flags & IFF_UP) {
 			if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
 				ed_init_locked(sc);
+			else if (sc->sc_mediachg)
+				sc->sc_mediachg(sc);
 		} else {
 			if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
 				ed_stop(sc);
@@ -1245,23 +1236,6 @@ ed_ioctl(struct ifnet *ifp, u_long command, caddr_t data)
 		 */
 		ed_setrcr(sc);
 
-#ifdef ED_3C503
-		/*
-		 * An unfortunate hack to provide the (required) software
-		 * control of the tranceiver for 3Com/HP boards.
-		 * The LINK2 flag disables the tranceiver if set.
-		 */
-		if (sc->vendor == ED_VENDOR_3COM) {
-			if (ifp->if_flags & IFF_LINK2)
-				ed_asic_outb(sc, ED_3COM_CR, 0);
-			else
-				ed_asic_outb(sc, ED_3COM_CR, ED_3COM_CR_XSEL);
-		}
-#endif
-#ifdef ED_HPP
-		if (sc->vendor == ED_VENDOR_HP) 
-			ed_hpp_set_physical_link(sc);
-#endif
 		ED_UNLOCK(sc);
 		break;
 
diff --git a/sys/dev/ed/if_ed_3c503.c b/sys/dev/ed/if_ed_3c503.c
index c0fcd67f44b..55b7046a84f 100644
--- a/sys/dev/ed/if_ed_3c503.c
+++ b/sys/dev/ed/if_ed_3c503.c
@@ -60,6 +60,8 @@ __FBSDID("$FreeBSD$");
 #include <dev/ed/if_edreg.h>
 #include <dev/ed/if_edvar.h>
 
+static void ed_3c503_mediachg(struct ed_softc *sc);
+
 /*
  * Probe and vendor-specific initialization routine for 3Com 3c503 boards
  */
@@ -335,7 +337,25 @@ ed_probe_3Com(device_t dev, int port_rid, int flags)
 	ed_asic_outb(sc, ED_3COM_VPTR1, 0xff);
 	ed_asic_outb(sc, ED_3COM_VPTR0, 0x00);
 
-	return (ed_clear_memory(dev));
+	error = ed_clear_memory(dev);
+	if (error == 0)
+		sc->sc_mediachg = ed_3c503_mediachg;
+	return (error);
+}
+
+static void
+ed_3c503_mediachg(struct ed_softc *sc)
+{
+	struct ifnet *ifp = sc->ifp;
+
+	/*
+	 * If this is a 3Com board, the tranceiver must be software enabled
+	 * (there is no settable hardware default).
+	 */
+	if (ifp->if_flags & IFF_LINK2)
+		ed_asic_outb(sc, ED_3COM_CR, 0);
+	else
+		ed_asic_outb(sc, ED_3COM_CR, ED_3COM_CR_XSEL);
 }
 
 #endif /* ED_3C503 */
diff --git a/sys/dev/ed/if_ed_hpp.c b/sys/dev/ed/if_ed_hpp.c
index 2dac21d26f2..c54170502cb 100644
--- a/sys/dev/ed/if_ed_hpp.c
+++ b/sys/dev/ed/if_ed_hpp.c
@@ -62,6 +62,7 @@ __FBSDID("$FreeBSD$");
 
 static void	ed_hpp_writemem(struct ed_softc *, uint8_t *, uint16_t,
 		    uint16_t);
+static void	ed_hpp_set_physical_link(struct ed_softc *sc);
 
 /*
  * Interrupt conversion table for the HP PC LAN+
@@ -355,6 +356,7 @@ ed_probe_HP_pclanp(device_t dev, int port_rid, int flags)
 			return (ENXIO);
 	}
 
+	sc->sc_mediachg = ed_hpp_set_physical_link;
 	return (0);
 }
 
@@ -362,7 +364,7 @@ ed_probe_HP_pclanp(device_t dev, int port_rid, int flags)
  * HP PC Lan+ : Set the physical link to use AUI or TP/TL.
  */
 
-void
+static void
 ed_hpp_set_physical_link(struct ed_softc *sc)
 {
 	struct ifnet *ifp = sc->ifp;
diff --git a/sys/dev/ed/if_edvar.h b/sys/dev/ed/if_edvar.h
index 7f8f0868f40..66ca79b7dc5 100644
--- a/sys/dev/ed/if_edvar.h
+++ b/sys/dev/ed/if_edvar.h
@@ -220,7 +220,6 @@ void	ed_pio_writemem(struct ed_softc *, uint8_t *, uint16_t, uint16_t);
 
 /* The following is unsatisfying XXX */
 #ifdef ED_HPP
-void	ed_hpp_set_physical_link(struct ed_softc *);
 void	ed_hpp_readmem(struct ed_softc *, bus_size_t, uint8_t *, uint16_t);
 u_short	ed_hpp_write_mbufs(struct ed_softc *, struct mbuf *, int);
 #endif