dts: sunxi: Bring in Ethernet device tree bindings
Since we will use these bindings on sunxi, bring them in from Linux
4.0-rc1.
Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
diff --git a/doc/device-tree-bindings/net/ethernet.txt b/doc/device-tree-bindings/net/ethernet.txt
new file mode 100644
index 0000000..3fc3605
--- /dev/null
+++ b/doc/device-tree-bindings/net/ethernet.txt
@@ -0,0 +1,25 @@
+The following properties are common to the Ethernet controllers:
+
+- local-mac-address: array of 6 bytes, specifies the MAC address that was
+ assigned to the network device;
+- mac-address: array of 6 bytes, specifies the MAC address that was last used by
+ the boot program; should be used in cases where the MAC address assigned to
+ the device by the boot program is different from the "local-mac-address"
+ property;
+- max-speed: number, specifies maximum speed in Mbit/s supported by the device;
+- max-frame-size: number, maximum transfer unit (IEEE defined MTU), rather than
+ the maximum frame size (there's contradiction in ePAPR).
+- phy-mode: string, operation mode of the PHY interface; supported values are
+ "mii", "gmii", "sgmii", "qsgmii", "tbi", "rev-mii", "rmii", "rgmii", "rgmii-id",
+ "rgmii-rxid", "rgmii-txid", "rtbi", "smii", "xgmii"; this is now a de-facto
+ standard property;
+- phy-connection-type: the same as "phy-mode" property but described in ePAPR;
+- phy-handle: phandle, specifies a reference to a node representing a PHY
+ device; this property is described in ePAPR and so preferred;
+- phy: the same as "phy-handle" property, not recommended for new bindings.
+- phy-device: the same as "phy-handle" property, not recommended for new
+ bindings.
+
+Child nodes of the Ethernet controller are typically the individual PHY devices
+connected via the MDIO bus (sometimes the MDIO bus controller is separate).
+They are described in the phy.txt file in this same directory.