Documentation: dtb: Add port-id field for APM X-Gene ethernet

Signed-off-by: Keyur Chudgar <kchudgar@apm.com>
Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/net/apm-xgene-enet.txt b/Documentation/devicetree/bindings/net/apm-xgene-enet.txt
index 6151999c5dca..dc7961b33076 100644
--- a/Documentation/devicetree/bindings/net/apm-xgene-enet.txt
+++ b/Documentation/devicetree/bindings/net/apm-xgene-enet.txt
@@ -15,6 +15,7 @@ Required properties for all the ethernet interfaces:
   - "ring_csr": Descriptor ring control and status register address space
   - "ring_cmd": Descriptor ring command register address space
 - interrupts: Ethernet main interrupt
+- port-id: Port number (0 or 1)
 - clocks: Reference to the clock entry.
 - local-mac-address: MAC address assigned to this device
 - phy-connection-type: Interface type between ethernet device and PHY device
@@ -49,6 +50,7 @@ Example:
                       <0x0 0X10000000 0x0 0X200>;
                 reg-names = "enet_csr", "ring_csr", "ring_cmd";
                 interrupts = <0x0 0x3c 0x4>;
+                port-id = <0>;
                 clocks = <&menetclk 0>;
                 local-mac-address = [00 01 73 00 00 01];
                 phy-connection-type = "rgmii";