openwrt/target/linux/bcm47xx/patches-5.15/210-b44_phy_fix.patch

--- a/drivers/net/ethernet/broadcom/b44.c
+++ b/drivers/net/ethernet/broadcom/b44.c
@@ -430,10 +430,34 @@ static void b44_wap54g10_workaround(stru
 error:
 	pr_warn("PHY: cannot reset MII transceiver isolate bit\n");
 }
+
+static void b44_bcm47xx_workarounds(struct b44 *bp)
+{
+	char buf[20];
+	struct ssb_device *sdev = bp->sdev;
+
+	/* Toshiba WRC-1000, Siemens SE505 v1, Askey RT-210W, RT-220W */
+	if (sdev->bus->sprom.board_num == 100) {
+		bp->phy_addr = B44_PHY_ADDR_NO_LOCAL_PHY;
+	} else {
+		/* WL-HDD */
+		if (bcm47xx_nvram_getenv("hardware_version", buf, sizeof(buf)) >= 0 &&
+		    !strncmp(buf, "WL300-", strlen("WL300-"))) {
+			if (sdev->bus->sprom.et0phyaddr == 0 &&
+			    sdev->bus->sprom.et1phyaddr == 1)
+				bp->phy_addr = B44_PHY_ADDR_NO_LOCAL_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)
@@ -442,6 +466,7 @@ static int b44_setup_phy(struct b44 *bp)
 	int err;
 
 	b44_wap54g10_workaround(bp);
+	b44_bcm47xx_workarounds(bp);
 
 	if (bp->flags & B44_FLAG_EXTERNAL_PHY)
 		return 0;
@@ -2175,6 +2200,8 @@ static int b44_get_invariants(struct b44
 	 * valid PHY address. */
 	bp->phy_addr &= 0x1F;
 
+	b44_bcm47xx_workarounds(bp);
+
 	memcpy(bp->dev->dev_addr, addr, ETH_ALEN);
 
 	if (!is_valid_ether_addr(&bp->dev->dev_addr[0])){