[PATCH v3 4/4] riscv: dts: sophgo: add rtc dt node for CV1800

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Add the rtc device tree node to cv1800 SoC.

Signed-off-by: Jingbao Qiu <qiujingbao.dlmu@xxxxxxxxx>
---
 arch/riscv/boot/dts/sophgo/cv1800b.dtsi | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/arch/riscv/boot/dts/sophgo/cv1800b.dtsi b/arch/riscv/boot/dts/sophgo/cv1800b.dtsi
index df40e87ee063..da9c42ef6fd4 100644
--- a/arch/riscv/boot/dts/sophgo/cv1800b.dtsi
+++ b/arch/riscv/boot/dts/sophgo/cv1800b.dtsi
@@ -114,6 +114,17 @@ plic: interrupt-controller@70000000 {
 			riscv,ndev = <101>;
 		};
 
+		syscon@5025000 {
+			compatible = "sophgo,cv1800b-subsys", "syscon", "simple-mfd";
+			reg = <0x05025000 0x2000>;
+
+			rtc {
+				compatible = "sophgo,cv1800b-rtc";
+				interrupts = <17 IRQ_TYPE_LEVEL_HIGH>;
+				clocks = <&clk CLK_RTC_25M>;
+			};
+		};
+
 		clint: timer@74000000 {
 			compatible = "sophgo,cv1800b-clint", "thead,c900-clint";
 			reg = <0x74000000 0x10000>;
-- 
2.25.1





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