Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / Documentation / devicetree / bindings / clock / arm-integrator.txt

diff --git a/kernel/Documentation/devicetree/bindings/clock/arm-integrator.txt b/kernel/Documentation/devicetree/bindings/clock/arm-integrator.txt
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+++ b/kernel/Documentation/devicetree/bindings/clock/arm-integrator.txt
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+Clock bindings for ARM Integrator and Versatile Core Module clocks
+
+Auxiliary Oscillator Clock
+
+This is a configurable clock fed from a 24 MHz chrystal,
+used for generating e.g. video clocks. It is located on the
+core module and there is only one of these.
+
+This clock node *must* be a subnode of the core module, since
+it obtains the base address for it's address range from its
+parent node.
+
+
+Required properties:
+- compatible: must be "arm,integrator-cm-auxosc" or "arm,versatile-cm-auxosc"
+- #clock-cells: must be <0>
+
+Optional properties:
+- clocks: parent clock(s)
+
+Example:
+
+core-module@10000000 {
+       xtal24mhz: xtal24mhz@24M {
+               #clock-cells = <0>;
+               compatible = "fixed-clock";
+               clock-frequency = <24000000>;
+       };
+       auxosc: cm_aux_osc@25M {
+               #clock-cells = <0>;
+               compatible = "arm,integrator-cm-auxosc";
+               clocks = <&xtal24mhz>;
+       };
+};