[TG3]: add 5780 basic support

Add 5780 PCI IDs, chip IDs, and other basic support.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 9a28b31..9e13377 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -2098,6 +2098,8 @@
 #define PCI_DEVICE_ID_TIGON3_5721	0x1659
 #define PCI_DEVICE_ID_TIGON3_5705M	0x165d
 #define PCI_DEVICE_ID_TIGON3_5705M_2	0x165e
+#define PCI_DEVICE_ID_TIGON3_5780	0x166a
+#define PCI_DEVICE_ID_TIGON3_5780S	0x166b
 #define PCI_DEVICE_ID_TIGON3_5705F	0x166e
 #define PCI_DEVICE_ID_TIGON3_5750	0x1676
 #define PCI_DEVICE_ID_TIGON3_5751	0x1677