diff --git a/ports/silabs/circuitpython_efr32.slcp b/ports/silabs/circuitpython_efr32.slcp
index d645f2b1ed..17c8118501 100644
--- a/ports/silabs/circuitpython_efr32.slcp
+++ b/ports/silabs/circuitpython_efr32.slcp
@@ -19,6 +19,7 @@ sdk_extension:
 - id: cp_efr32
   version: 1.0.0
 component:
+- {id: device_init_dpll}
 - {id: bluetooth_feature_nvm}
 - {id: bluetooth_feature_gatt_server}
 - {id: bluetooth_feature_sm}
diff --git a/ports/silabs/common-hal/microcontroller/Processor.c b/ports/silabs/common-hal/microcontroller/Processor.c
index 841f3ba35f..12cf5ca809 100644
--- a/ports/silabs/common-hal/microcontroller/Processor.c
+++ b/ports/silabs/common-hal/microcontroller/Processor.c
@@ -50,7 +50,7 @@ float common_hal_mcu_processor_get_voltage(void) {
 }
 
 uint32_t common_hal_mcu_processor_get_frequency(void) {
-    return CMU_ClockFreqGet(cmuClock_HCLK);
+    return CMU_ClockFreqGet(cmuClock_SYSCLK);
 }
 
 void common_hal_mcu_processor_get_uid(uint8_t raw_id[]) {