diff --git a/boards/wch/ch32v303vct6_evt/ch32v303vct6_evt.dts b/boards/wch/ch32v303vct6_evt/ch32v303vct6_evt.dts
index 39c1bbf1c73..37e3a893e94 100644
--- a/boards/wch/ch32v303vct6_evt/ch32v303vct6_evt.dts
+++ b/boards/wch/ch32v303vct6_evt/ch32v303vct6_evt.dts
@@ -5,7 +5,7 @@
 
 /dts-v1/;
 
-#include <wch/ch32v303/ch32v303.dtsi>
+#include <wch/ch32v303/ch32v303vct.dtsi>
 #include <zephyr/dt-bindings/gpio/gpio.h>
 #include <zephyr/dt-bindings/input/input-event-codes.h>
 #include "ch32v303vct6_evt-pinctrl.dtsi"
diff --git a/dts/riscv/wch/ch32v303/ch32v303cbt.dtsi b/dts/riscv/wch/ch32v303/ch32v303cbt.dtsi
new file mode 100644
index 00000000000..52bab0e7630
--- /dev/null
+++ b/dts/riscv/wch/ch32v303/ch32v303cbt.dtsi
@@ -0,0 +1,19 @@
+/*
+ * Copyright (c) 2025 Bootlin
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <wch/ch32v303/ch32v303.dtsi>
+
+&gpioc {
+	gpio-reserved-ranges = <0 13>;
+};
+
+&gpiod {
+	gpio-reserved-ranges = <2 14>;
+};
+
+&gpioe {
+	gpio-reserved-ranges = <0 16>;
+};
diff --git a/dts/riscv/wch/ch32v303/ch32v303rbt.dtsi b/dts/riscv/wch/ch32v303/ch32v303rbt.dtsi
new file mode 100644
index 00000000000..0afd98693b8
--- /dev/null
+++ b/dts/riscv/wch/ch32v303/ch32v303rbt.dtsi
@@ -0,0 +1,15 @@
+/*
+ * Copyright (c) 2025 Bootlin
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <wch/ch32v303/ch32v303.dtsi>
+
+&gpiod {
+	gpio-reserved-ranges = <3 13>;
+};
+
+&gpioe {
+	gpio-reserved-ranges = <0 16>;
+};
diff --git a/dts/riscv/wch/ch32v303/ch32v303rct.dtsi b/dts/riscv/wch/ch32v303/ch32v303rct.dtsi
new file mode 100644
index 00000000000..0afd98693b8
--- /dev/null
+++ b/dts/riscv/wch/ch32v303/ch32v303rct.dtsi
@@ -0,0 +1,15 @@
+/*
+ * Copyright (c) 2025 Bootlin
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <wch/ch32v303/ch32v303.dtsi>
+
+&gpiod {
+	gpio-reserved-ranges = <3 13>;
+};
+
+&gpioe {
+	gpio-reserved-ranges = <0 16>;
+};
diff --git a/dts/riscv/wch/ch32v303/ch32v303vct.dtsi b/dts/riscv/wch/ch32v303/ch32v303vct.dtsi
new file mode 100644
index 00000000000..5159178ad82
--- /dev/null
+++ b/dts/riscv/wch/ch32v303/ch32v303vct.dtsi
@@ -0,0 +1,11 @@
+/*
+ * Copyright (c) 2025 Bootlin
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <wch/ch32v303/ch32v303.dtsi>
+
+&gpioc {
+	gpio-reserved-ranges = <0 3>, <14 2>;
+};