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+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/soc/qcom/qcom,smem.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Qualcomm Shared Memory Manager binding
+
+maintainers:
+ - Andy Gross <agross@kernel.org>
+ - Bjorn Andersson <bjorn.andersson@linaro.org>
+
+description: |
+ This binding describes the Qualcomm Shared Memory Manager, used to share data
+ between various subsystems and OSes in Qualcomm platforms.
+
+properties:
+ compatible:
+ const: qcom,smem
+
+ memory-region:
+ maxItems: 1
+ description: handle to memory reservation for main SMEM memory region.
+
+ hwlocks:
+ maxItems: 1
+
+ qcom,rpm-msg-ram:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: handle to RPM message memory resource
+
+required:
+ - compatible
+ - memory-region
+ - hwlocks
+
+additionalProperties: false
+
+examples:
+ - |
+ reserved-memory {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ smem_region: smem@fa00000 {
+ reg = <0xfa00000 0x200000>;
+ no-map;
+ };
+ };
+
+ smem {
+ compatible = "qcom,smem";
+
+ memory-region = <&smem_region>;
+ qcom,rpm-msg-ram = <&rpm_msg_ram>;
+
+ hwlocks = <&tcsr_mutex 3>;
+ };
+
+ soc {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ rpm_msg_ram: sram@fc428000 {
+ compatible = "qcom,rpm-msg-ram";
+ reg = <0xfc428000 0x4000>;
+ };
+ };
+
+...