add gpio led uart

hc

2024-05-10 748e4f3d702def1a4bff191e0cf93b6a05340f01

 kernel/arch/nds32/boot/dts/ae3xx.dts
..
..
@@ -82,4 +82,9 @@
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 			interrupts = <18>;
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 		};
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 	};
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+
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+	pmu {
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+		compatible = "andestech,nds32v3-pmu";
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+		interrupts= <13>;
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+	};
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 };