diff options
Diffstat (limited to 'firmware/target')
| -rw-r--r-- | firmware/target/arm/tcc780x/system-tcc780x.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/firmware/target/arm/tcc780x/system-tcc780x.c b/firmware/target/arm/tcc780x/system-tcc780x.c index f6392b023a..c109b8ddda 100644 --- a/firmware/target/arm/tcc780x/system-tcc780x.c +++ b/firmware/target/arm/tcc780x/system-tcc780x.c @@ -291,11 +291,11 @@ int system_memory_guard(int newmode) #ifdef HAVE_ADJUSTABLE_CPU_FREQ -/* Note: This is not currently enabled because switching seems to - cause an occasional freeze. To be investigated. */ - void set_cpu_frequency(long frequency) { + if (cpu_frequency == frequency) + return; + /* CPU/COP frequencies can be scaled between Fbus (min) and Fsys (max). Fbus should not be set below ~32Mhz with LCD enabled or the display will be garbled. */ @@ -327,6 +327,7 @@ void set_cpu_frequency(long frequency) asm volatile ( "nop \n\t" "nop \n\t" + "nop \n\t" ); cpu_frequency = frequency; |