1 files changed, 57 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/net/micrel.txt b/Documentation/devicetree/bindings/net/micrel.txt
new file mode 100644
index 000000000..a407dd1b4
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/micrel.txt
@@ -0,0 +1,57 @@
+Micrel PHY properties.
+
+These properties cover the base properties Micrel PHYs.
+
+Optional properties:
+
+ - micrel,led-mode : LED mode value to set for PHYs with configurable LEDs.
+
+	Configure the LED mode with single value. The list of PHYs and the
+	bits that are currently supported:
+
+	KSZ8001: register 0x1e, bits 15..14
+	KSZ8041: register 0x1e, bits 15..14
+	KSZ8021: register 0x1f, bits 5..4
+	KSZ8031: register 0x1f, bits 5..4
+	KSZ8051: register 0x1f, bits 5..4
+	KSZ8081: register 0x1f, bits 5..4
+	KSZ8091: register 0x1f, bits 5..4
+	LAN8814: register EP5.0, bit 6
+
+	See the respective PHY datasheet for the mode values.
+
+ - micrel,rmii-reference-clock-select-25-mhz: RMII Reference Clock Select
+						bit selects 25 MHz mode
+
+	Setting the RMII Reference Clock Select bit enables 25 MHz rather
+	than 50 MHz clock mode.
+
+	Note that this option in only needed for certain PHY revisions with a
+	non-standard, inverted function of this configuration bit.
+	Specifically, a clock reference ("rmii-ref" below) is always needed to
+	actually select a mode.
+
+ - clocks, clock-names: contains clocks according to the common clock bindings.
+
+	supported clocks:
+	- KSZ8021, KSZ8031, KSZ8081, KSZ8091: "rmii-ref": The RMII reference
+	  input clock. Used to determine the XI input clock.
+
+ - micrel,fiber-mode: If present the PHY is configured to operate in fiber mode
+
+	Some PHYs, such as the KSZ8041FTL variant, support fiber mode, enabled
+	by the FXEN boot strapping pin. It can't be determined from the PHY
+	registers whether the PHY is in fiber mode, so this boolean device tree
+	property can be used to describe it.
+
+	In fiber mode, auto-negotiation is disabled and the PHY can only work in
+	100base-fx (full and half duplex) modes.
+
+ - coma-mode-gpios: If present the given gpio will be deasserted when the
+		    PHY is probed.
+
+	Some PHYs have a COMA mode input pin which puts the PHY into
+	isolate and power-down mode. On some boards this input is connected
+	to a GPIO of the SoC.
+
+	Supported on the LAN8814.