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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/rtc/loongson,rtc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Loongson Real-Time Clock
+
+description:
+ The Loongson family chips use an on-chip counter 0 (Time Of Year
+ counter) as the RTC.
+
+maintainers:
+ - Binbin Zhou <zhoubinbin@loongson.cn>
+
+allOf:
+ - $ref: rtc.yaml#
+
+properties:
+ compatible:
+ oneOf:
+ - enum:
+ - loongson,ls1b-rtc
+ - loongson,ls1c-rtc
+ - loongson,ls7a-rtc
+ - loongson,ls2k1000-rtc
+ - items:
+ - enum:
+ - loongson,ls2k2000-rtc
+ - loongson,ls2k0500-rtc
+ - const: loongson,ls7a-rtc
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ rtc@1fe27800 {
+ compatible = "loongson,ls2k1000-rtc";
+ reg = <0x1fe27800 0x100>;
+
+ interrupt-parent = <&liointc1>;
+ interrupts = <8 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+...