diff --git a/Documentation/devicetree/bindings/misc/phytium,snoop-ctrl.yaml b/Documentation/devicetree/bindings/misc/phytium,snoop-ctrl.yaml
new file mode 100644
index 0000000000000..05b8353f7e9f6
--- /dev/null
+++ b/Documentation/devicetree/bindings/misc/phytium,snoop-ctrl.yaml
@@ -0,0 +1,43 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/misc/phytium,snoop-ctrl.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Phytium BMC Snoop Controller
+
+maintainers:
+  - Lan Hengyu <lanhengyu1395@phytium.com.cn>
+
+description:
+        The snoop controller allows the BMC to listen on and record the data
+        bytes written by the Host to the target I/O ports.
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - phytium,snoop-ctrl
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  snoop-ports:
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+    description: Ports to snoop
+
+required:
+  - compatible
+  - interrupts
+  - snoop-ports
+
+examples:
+  - |
+      snoop: snoop@28010000 {
+          compatible = "phytium,snoop-ctrl", "syscon";
+          reg = <0x0 0x28010000 0x0 0x1000>;
+          interrupts = <GIC_SPI 144 IRQ_TYPE_LEVEL_HIGH>;
+          snoop-ports = <0x80 0x81>;
+      };
diff --git a/arch/arm64/boot/dts/phytium/pe220x.dtsi b/arch/arm64/boot/dts/phytium/pe220x.dtsi
index 732e4ad04084c..7bed7227c952f 100644
--- a/arch/arm64/boot/dts/phytium/pe220x.dtsi
+++ b/arch/arm64/boot/dts/phytium/pe220x.dtsi
@@ -251,6 +251,14 @@
 			status = "disabled";
 		};
 
+		snoop: snoop@28010000 {
+			compatible = "phytium,snoop-ctrl", "syscon";
+			reg = <0x0 0x28010000 0x0 0x1000>;
+			interrupts = <GIC_SPI 88 IRQ_TYPE_LEVEL_HIGH>;
+			snoop-ports = <0x80 0x81>;
+			status = "disabled";
+		};
+
 		lpc: lpc@28010000 {
 			compatible = "simple-mfd", "syscon";
 			reg = <0x0 0x28010000 0x0 0x1000>;