diff --git a/dts/riscv/sensry/ganymed-sy1xx.dtsi b/dts/riscv/sensry/ganymed-sy1xx.dtsi
index ad2df617b28..5e652c56a15 100644
--- a/dts/riscv/sensry/ganymed-sy1xx.dtsi
+++ b/dts/riscv/sensry/ganymed-sy1xx.dtsi
@@ -38,18 +38,18 @@
 
 	soc {
 		#address-cells = <1>;
-		#size-cells = <0>;
+		#size-cells = <1>;
 
 		event0: interrupt-controller@1000 {
 			compatible = "sensry,sy1xx-event-unit";
-			reg = <0x1000>;
+			reg = <0x1000 0x40>;
 			interrupt-controller;
 			#interrupt-cells = <1>;
 		};
 
 		systick: timer@1a10b040 {
 			compatible = "sensry,sy1xx-sys-timer";
-			reg = <0x1a10b040>;
+			reg = <0x1a10b040 0x04>;
 			interrupt-parent = <&event0>;
 			interrupts = <10 0>;
 			ticks_us = <1000>;
@@ -57,7 +57,7 @@
 
 		timer1: timer@1a10b044 {
 			compatible = "sensry,sy1xx-sys-timer";
-			reg = <0x1a10b044>;
+			reg = <0x1a10b044 0x04>;
 			interrupt-parent = <&event0>;
 			interrupts = <11 0>;
 			ticks_us = <1000>;
@@ -65,7 +65,7 @@
 
 		uart0: uart@1a102000 {
 			compatible = "sensry,sy1xx-uart";
-			reg = <0x1a102000>;
+			reg = <0x1a102000 0x80>;
 			instance = <0>;
 			current-speed = <1000000>;
 			status = "okay";
@@ -73,7 +73,7 @@
 
 		uart1: uart@1a102080 {
 			compatible = "sensry,sy1xx-uart";
-			reg = <0x1a102080>;
+			reg = <0x1a102080 0x80>;
 			instance = <1>;
 			current-speed = <1000000>;
 			status = "okay";
@@ -81,11 +81,17 @@
 
 		uart2: uart@1a102100 {
 			compatible = "sensry,sy1xx-uart";
-			reg = <0x1a102100>;
+			reg = <0x1a102100 0x80>;
 			instance = <2>;
 			current-speed = <1000000>;
 			status = "okay";
 		};
 
+		pinctrl: pinctrl@1a104000 {
+			compatible = "sensry,sy1xx-pinctrl";
+			reg = <0x1a104000 0x1000>;
+			status = "okay";
+		};
+
 	};
 };