diff --git a/drivers/st/clk/stm32mp1_clk.c b/drivers/st/clk/stm32mp1_clk.c
index 76e6e6f..f3b9f0c 100644
--- a/drivers/st/clk/stm32mp1_clk.c
+++ b/drivers/st/clk/stm32mp1_clk.c
@@ -1912,9 +1912,18 @@
 	}
 }
 
+static void sync_earlyboot_clocks_state(void)
+{
+	if (!stm32mp_is_single_core()) {
+		stm32mp1_clk_enable_secure(RTCAPB);
+	}
+}
+
 int stm32mp1_clk_probe(void)
 {
 	stm32mp1_osc_init();
 
+	sync_earlyboot_clocks_state();
+
 	return 0;
 }