[BNX2]: Add PHY_DIS_EARLY_DAC workaround.

5709 Ax and Bx chips all need this workaround.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c
index da767d3..a4f3832 100644
--- a/drivers/net/bnx2.c
+++ b/drivers/net/bnx2.c
@@ -6685,8 +6685,9 @@
 	} else if (CHIP_NUM(bp) == CHIP_NUM_5706 ||
 		   CHIP_NUM(bp) == CHIP_NUM_5708)
 		bp->phy_flags |= PHY_CRC_FIX_FLAG;
-	else if (CHIP_ID(bp) == CHIP_ID_5709_A0 ||
-		 CHIP_ID(bp) == CHIP_ID_5709_A1)
+	else if (CHIP_NUM(bp) == CHIP_NUM_5709 &&
+		 (CHIP_REV(bp) == CHIP_REV_Ax ||
+		  CHIP_REV(bp) == CHIP_REV_Bx))
 		bp->phy_flags |= PHY_DIS_EARLY_DAC_FLAG;
 
 	if ((CHIP_ID(bp) == CHIP_ID_5708_A0) ||