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-rw-r--r--Documentation/devicetree/bindings/net/ethernet.txt39
1 files changed, 32 insertions, 7 deletions
diff --git a/Documentation/devicetree/bindings/net/ethernet.txt b/Documentation/devicetree/bindings/net/ethernet.txt
index 5d88f37480b6..7da86f22a13b 100644
--- a/Documentation/devicetree/bindings/net/ethernet.txt
+++ b/Documentation/devicetree/bindings/net/ethernet.txt
@@ -8,14 +8,39 @@ The following properties are common to the Ethernet controllers:
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;
+ the maximum frame size (there's contradiction in the Devicetree
+ Specification).
+- phy-mode: string, operation mode of the PHY interface. This is now a de-facto
+ standard property; supported values are:
+ * "internal"
+ * "mii"
+ * "gmii"
+ * "sgmii"
+ * "qsgmii"
+ * "tbi"
+ * "rev-mii"
+ * "rmii"
+ * "rgmii" (RX and TX delays are added by the MAC when required)
+ * "rgmii-id" (RGMII with internal RX and TX delays provided by the PHY, the
+ MAC should not add the RX or TX delays in this case)
+ * "rgmii-rxid" (RGMII with internal RX delay provided by the PHY, the MAC
+ should not add an RX delay in this case)
+ * "rgmii-txid" (RGMII with internal TX delay provided by the PHY, the MAC
+ should not add an TX delay in this case)
+ * "rtbi"
+ * "smii"
+ * "xgmii"
+ * "trgmii"
+ * "2000base-x",
+ * "2500base-x",
+ * "rxaui"
+ * "xaui"
+ * "10gbase-kr" (10GBASE-KR, XFI, SFI)
+- phy-connection-type: the same as "phy-mode" property but described in the
+ Devicetree Specification;
- phy-handle: phandle, specifies a reference to a node representing a PHY
- device; this property is described in ePAPR and so preferred;
+ device; this property is described in the Devicetree Specification 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.