From 8e2d082b7bb0c2b9d938f7bb32dc9425767b645d Mon Sep 17 00:00:00 2001
From: gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>
Date: Fri, 1 Aug 2008 09:24:16 +0000
Subject: git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@380
 35acf78f-673a-0410-8e92-d51de3d6d3f4

---
 ports/ARMCM3/chcore.c | 4 +++-
 ports/ARMCM3/chcore.h | 1 +
 2 files changed, 4 insertions(+), 1 deletion(-)

(limited to 'ports')

diff --git a/ports/ARMCM3/chcore.c b/ports/ARMCM3/chcore.c
index 199c71fd9..b9c7ce39a 100644
--- a/ports/ARMCM3/chcore.c
+++ b/ports/ARMCM3/chcore.c
@@ -27,7 +27,9 @@ __attribute__((weak))
 void _IdleThread(void *p) {
 
   while (TRUE) {
-//    asm volatile ("wfi");
+#if ENABLE_WFI_IDLE != 0
+    asm volatile ("wfi");
+#endif
   }
 }
 
diff --git a/ports/ARMCM3/chcore.h b/ports/ARMCM3/chcore.h
index 17b9e5b0b..1e451dfc7 100644
--- a/ports/ARMCM3/chcore.h
+++ b/ports/ARMCM3/chcore.h
@@ -29,6 +29,7 @@ typedef void *regarm;
  */
 #define BASEPRI_USER    0       /* User level BASEPRI, 0 = disabled.    */
 #define BASEPRI_KERNEL  0x10    /* BASEPRI level within kernel lock.    */
+#define ENABLE_WFI_IDLE 0       /* Enables the use of the WFI ins.      */
 
 /*
  * Interrupt saved context, empty in this architecture.
-- 
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