bnx2x: Add Warpcore support for 578xx

Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Vladislav Zolotarov <vladz@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@conan.davemloft.net>
diff --git a/drivers/net/bnx2x/bnx2x_main.c b/drivers/net/bnx2x/bnx2x_main.c
index 6237e4a..0dddba9 100644
--- a/drivers/net/bnx2x/bnx2x_main.c
+++ b/drivers/net/bnx2x/bnx2x_main.c
@@ -8586,7 +8586,10 @@
 				return;
 			}
 			break;
+		case PORT_FEATURE_LINK_SPEED_20G:
+			bp->link_params.req_line_speed[idx] = SPEED_20000;
 
+			break;
 		default:
 			BNX2X_ERR("NVRAM config error. "
 				  "BAD link speed link_config 0x%x\n",