i2c: i2c-ocores: DT bindings and minor fixes.

[linux-2.6-microblaze.git] / Documentation / devicetree / bindings / i2c / i2c-ocores.txt

diff --git a/Documentation/devicetree/bindings/i2c/i2c-ocores.txt b/Documentation/devicetree/bindings/i2c/i2c-ocores.txt
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+Device tree configuration for i2c-ocores
+
+Required properties:
+- compatible      : "opencores,i2c-ocores"
+- reg             : bus address start and address range size of device
+- interrupts      : interrupt number
+- regstep         : size of device registers in bytes
+- clock-frequency : frequency of bus clock in Hz
+- #address-cells  : should be <1>
+- #size-cells     : should be <0>
+
+Example:
+
+       i2c0: ocores@a0000000 {
+               #address-cells = <1>;
+               #size-cells = <0>;
+               compatible = "opencores,i2c-ocores";
+               reg = <0xa0000000 0x8>;
+               interrupts = <10>;
+               regstep = <1>;
+               clock-frequency = <20000000>;
+
+               dummy@60 {
+                       compatible = "dummy";
+                       reg = <0x60>;
+               };
+       };