diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index d205013..6315564 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -8560,6 +8560,16 @@
 
 		case NIC_SRAM_DATA_CFG_LED_MODE_MAC:
 			tp->led_ctrl = LED_CTRL_MODE_MAC;
+
+			/* Default to PHY_1_MODE if 0 (MAC_MODE) is
+			 * read on some older 5700/5701 bootcode.
+			 */
+			if (GET_ASIC_REV(tp->pci_chip_rev_id) ==
+			    ASIC_REV_5700 ||
+			    GET_ASIC_REV(tp->pci_chip_rev_id) ==
+			    ASIC_REV_5701)
+				tp->led_ctrl = LED_CTRL_MODE_PHY_1;
+
 			break;
 
 		case SHASTA_EXT_LED_SHARED: