diff --git a/firmware/target/arm/as3525/system-as3525.c b/firmware/target/arm/as3525/system-as3525.c
index 01534ab..17dba4d 100644
--- a/firmware/target/arm/as3525/system-as3525.c
+++ b/firmware/target/arm/as3525/system-as3525.c
@@ -400,6 +400,7 @@ void set_cpu_frequency(long frequency)
  * Disabling MMU or putting the function in uncached memory seems to help? */
 void set_cpu_frequency(long frequency)
 {
+    return;
     int oldstatus = disable_irq_save();
 
     /* We only have 2 settings */