x1000: disable CPU idle stats by default

There's no point including this in normal builds: the stats are not
used for anything, they are not really of interest to anyone except
developers, and add a small overhead to the kernel tick.

Change-Id: I1b4f67cc62d11d634a8cec279dca513dd10eea96

1 files changed, 2 insertions, 0 deletions

diff --git a/firmware/target/mips/ingenic_x1000/system-x1000.c b/firmware/target/mips/ingenic_x1000/system-x1000.c
index d841a274ed..33d8db7222 100644
--- a/firmware/target/mips/ingenic_x1000/system-x1000.c
+++ b/firmware/target/mips/ingenic_x1000/system-x1000.c
@@ -35,10 +35,12 @@
 #include "x1000/msc.h"
 #include "x1000/aic.h"
 
+#ifdef X1000_CPUIDLE_STATS
 int __cpu_idle_avg = 0;
 int __cpu_idle_cur = 0;
 uint32_t __cpu_idle_ticks = 0;
 uint32_t __cpu_idle_reftick = 0;
+#endif
 
 /* Prepare the CPU to process interrupts, but don't enable them yet */
 static void system_init_irq(void)