[PATCH 3/3] riscv: dts: sophgo: add rtc dt node for CV1800B

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Add the rtc device tree node to CV1800B SoC.

Signed-off-by: Jingbao Qiu <qiujingbao.dlmu@xxxxxxxxx>
---
 arch/riscv/boot/dts/sophgo/cv1800b.dtsi | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/riscv/boot/dts/sophgo/cv1800b.dtsi b/arch/riscv/boot/dts/sophgo/cv1800b.dtsi
index df40e87ee063..89411c75b89a 100644
--- a/arch/riscv/boot/dts/sophgo/cv1800b.dtsi
+++ b/arch/riscv/boot/dts/sophgo/cv1800b.dtsi
@@ -119,5 +119,13 @@ clint: timer@74000000 {
 			reg = <0x74000000 0x10000>;
 			interrupts-extended = <&cpu0_intc 3>, <&cpu0_intc 7>;
 		};
+
+		rtc: rtc-controller@05026000 {
+			compatible = "sophgo,cv800b-rtc";
+			reg = <0x05026000 0x1000>;
+			interrupts = <17 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-parent = <&plic>;
+			clocks = <&osc>;
+		};
 	};
 };
-- 
2.25.1





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