diff --git a/boards/st/stm32mp257f_dk/stm32mp257f_dk_stm32mp257fxx_m33.dts b/boards/st/stm32mp257f_dk/stm32mp257f_dk_stm32mp257fxx_m33.dts
index 66e2e34eb4d..c36d3b443a3 100644
--- a/boards/st/stm32mp257f_dk/stm32mp257f_dk_stm32mp257fxx_m33.dts
+++ b/boards/st/stm32mp257f_dk/stm32mp257f_dk_stm32mp257fxx_m33.dts
@@ -45,6 +45,15 @@
 	};
 };
 
+&clk_hsi {
+	status = "okay";
+};
+
+&clk_hse {
+	clock-frequency = <DT_FREQ_M(40)>;
+	status = "okay";
+};
+
 &rcc {
 	clock-frequency = <DT_FREQ_M(400)>;
 };
diff --git a/boards/st/stm32mp257f_ev1/stm32mp257f_ev1_stm32mp257fxx_m33.dts b/boards/st/stm32mp257f_ev1/stm32mp257f_ev1_stm32mp257fxx_m33.dts
index c9a3cdd4f79..a4303592abc 100644
--- a/boards/st/stm32mp257f_ev1/stm32mp257f_ev1_stm32mp257fxx_m33.dts
+++ b/boards/st/stm32mp257f_ev1/stm32mp257f_ev1_stm32mp257fxx_m33.dts
@@ -45,6 +45,15 @@
 	};
 };
 
+&clk_hsi {
+	status = "okay";
+};
+
+&clk_hse {
+	clock-frequency = <DT_FREQ_M(40)>;
+	status = "okay";
+};
+
 &rcc {
 	clock-frequency = <DT_FREQ_M(400)>;
 };