boards: nordic: nrf54lm20pdk: set 128 MHz clock frequency

Mirlenko · hermabe · commit ea4c6658b745 · 2025-05-07T09:27:35.000+02:00
MPSL works only on 128 MHz. Running on any other
frequency may brick the 54L device due to the PLL trimming assuming
128 MHz CPU clock.

Signed-off-by: Aleksandr Mirlenko &lt;aleksandr.mirlenko@nordicsemi.no&gt;
diff --git a/boards/nordic/nrf54lm20pdk/nrf54lm20a_cpuapp_common.dtsi b/boards/nordic/nrf54lm20pdk/nrf54lm20a_cpuapp_common.dtsi
@@ -28,8 +28,7 @@
 };
 
 &hfpll {
-	/* For now use 64 MHz clock for CPU and fast peripherals. */
-	clock-frequency = <DT_FREQ_M(64)>;
+	clock-frequency = <DT_FREQ_M(128)>;
 };
 
 &lfxo {
