arm64: add better and more generic spin-table support

[u-boot] / doc / device-tree-bindings / net / fsl-tsec-phy.txt

diff --git a/doc/device-tree-bindings/net/fsl-tsec-phy.txt b/doc/device-tree-bindings/net/fsl-tsec-phy.txt
index dbe91aa161bf8b17967f1d5a997d4988daa48ddd..c5bf48c3cb51a4307d506a870e053056bee95778 100644 (file)
--- a/doc/device-tree-bindings/net/fsl-tsec-phy.txt
+++ b/doc/device-tree-bindings/net/fsl-tsec-phy.txt
@@ -41,3 +41,24 @@ Example:
                        reg = <0>;
                };
        };
+
+* TBI Internal MDIO bus
+
+As of this writing, every tsec is associated with an internal TBI PHY.
+This PHY is accessed through the local MDIO bus.  These buses are defined
+similarly to the mdio buses.  The TBI PHYs underneath them are similar to
+normal PHYs, but the reg property is considered instructive, rather than
+descriptive.  The reg property should be chosen so it doesn't interfere
+with other PHYs on the bus.  The TBI PHYs are referred to by a "tbi-handle"
+property under the tsec node, which has a similar meaning of "phy-handle".
+
+Example:
+       ethernet@24000 {
+               phy-handle = <&tbi1>;
+       };
+
+       mdio@24520 {
+               tbi1: tbi-phy@1f {
+                       reg = <0x1f>;
+               };
+       };