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diff --git a/dts/Bindings/ipmi/aspeed-kcs-bmc.txt b/dts/Bindings/ipmi/aspeed-kcs-bmc.txt
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+* Aspeed KCS (Keyboard Controller Style) IPMI interface
+
+The Aspeed SOCs (AST2400 and AST2500) are commonly used as BMCs
+(Baseboard Management Controllers) and the KCS interface can be
+used to perform in-band IPMI communication with their host.
+
+Required properties:
+- compatible : should be one of
+    "aspeed,ast2400-kcs-bmc"
+    "aspeed,ast2500-kcs-bmc"
+- interrupts : interrupt generated by the controller
+- kcs_chan : The LPC channel number in the controller
+- kcs_addr : The host CPU IO map address
+
+
+Example:
+
+    kcs3: kcs3@0 {
+        compatible = "aspeed,ast2500-kcs-bmc";
+        reg = <0x0 0x80>;
+        interrupts = <8>;
+        kcs_chan = <3>;
+        kcs_addr = <0xCA2>;
+        status = "okay";
+    };