diff --git a/bindings/arm/msm/aop-set-ddr.txt b/bindings/arm/msm/aop-set-ddr.txt
new file mode 100644
index 000000000000..df029d1844ff
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+++ b/bindings/arm/msm/aop-set-ddr.txt
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+AOP set ddr interface:
+-----------------
+
+AOP set ddr is an interface to send data to the Always on
+processor using QMP.
+
+Required properties :
+- compatible : must be "qcom,aop-set-ddr-freq"
+- mboxes : list of QMP mailbox phandle and channel identifier tuples
+- mbox-names : names of the listed mboxes
+
+Example :
+       aop-set-ddr-freq {
+               compatible = "qcom,aop-set-ddr-freq";
+               mboxes = <&qmp_aop 0>;
+               mbox-names = "aop";
+       };