igb: Add support for i354 devices

This patch adds base support for new i354 devices.  Loopback test is
unsupported for this release.

Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
diff --git a/drivers/net/ethernet/intel/igb/igb_ptp.c b/drivers/net/ethernet/intel/igb/igb_ptp.c
index 9f7da26..7e8c477 100644
--- a/drivers/net/ethernet/intel/igb/igb_ptp.c
+++ b/drivers/net/ethernet/intel/igb/igb_ptp.c
@@ -171,6 +171,7 @@
 	switch (adapter->hw.mac.type) {
 	case e1000_82576:
 	case e1000_82580:
+	case e1000_i354:
 	case e1000_i350:
 		spin_lock_irqsave(&adapter->tmreg_lock, flags);
 
@@ -735,6 +736,7 @@
 		wr32(E1000_TIMINCA, INCPERIOD_82576 | INCVALUE_82576);
 		break;
 	case e1000_82580:
+	case e1000_i354:
 	case e1000_i350:
 		snprintf(adapter->ptp_caps.name, 16, "%pm", netdev->dev_addr);
 		adapter->ptp_caps.owner = THIS_MODULE;
@@ -823,6 +825,7 @@
 	switch (adapter->hw.mac.type) {
 	case e1000_82576:
 	case e1000_82580:
+	case e1000_i354:
 	case e1000_i350:
 		cancel_delayed_work_sync(&adapter->ptp_overflow_work);
 		break;
@@ -867,6 +870,7 @@
 		wr32(E1000_TIMINCA, INCPERIOD_82576 | INCVALUE_82576);
 		break;
 	case e1000_82580:
+	case e1000_i354:
 	case e1000_i350:
 	case e1000_i210:
 	case e1000_i211: