--- a/drivers/net/ethernet/broadcom/b44.c
+++ b/drivers/net/ethernet/broadcom/b44.c
@@ -410,10 +410,41 @@ static void b44_wap54g10_workaround(stru
 error:
 	pr_warning("PHY: cannot reset MII transceiver isolate bit\n");
 }
+
+static inline int startswith (const char *source, const char *cmp) 
+{ 
+       return !strncmp(source,cmp,strlen(cmp)); 
+}
+
+static inline void b44_bcm47xx_workarounds(struct b44 *bp)
+{
+	char buf[20];
+	/* Toshiba WRC-1000, Siemens SE505 v1, Askey RT-210W, RT-220W */
+	if (nvram_getenv("boardnum", buf, sizeof(buf)) > 0)
+		return;
+	if (simple_strtoul(buf, NULL, 0) == 100) {
+		bp->phy_addr = B44_PHY_ADDR_NO_PHY;
+	} else {
+		/* WL-HDD */
+		struct ssb_device *sdev = bp->sdev;
+		if (nvram_getenv("hardware_version", buf, sizeof(buf)) > 0)
+			return;
+		if (startswith(buf, "WL300-")) {
+			if (sdev->bus->sprom.et0phyaddr == 0 &&
+			    sdev->bus->sprom.et1phyaddr == 1)
+				bp->phy_addr = B44_PHY_ADDR_NO_PHY;
+		}
+	}
+	return;
+}
 #else
 static inline void b44_wap54g10_workaround(struct b44 *bp)
 {
 }
+
+static inline void b44_bcm47xx_workarounds(struct b44 *bp)
+{
+}
 #endif
 
 static int b44_setup_phy(struct b44 *bp)
@@ -422,6 +453,7 @@ static int b44_setup_phy(struct b44 *bp)
 	int err;
 
 	b44_wap54g10_workaround(bp);
+	b44_bcm47xx_workarounds(bp);
 
 	if (bp->phy_addr == B44_PHY_ADDR_NO_PHY)
 		return 0;
@@ -2088,6 +2120,8 @@ static int __devinit b44_get_invariants(
 	 * valid PHY address. */
 	bp->phy_addr &= 0x1F;
 
+	b44_bcm47xx_workarounds(bp);
+
 	memcpy(bp->dev->dev_addr, addr, 6);
 
 	if (!is_valid_ether_addr(&bp->dev->dev_addr[0])){
