[rtems commit] bsps/arm: Fix Cortex-A9 MPCore nanoseconds handler

Sebastian Huber sebh at rtems.org
Thu Feb 13 08:58:16 UTC 2014


Module:    rtems
Branch:    master
Commit:    382ea27b6a9b2952c541ec7f600517181a4431e2
Changeset: http://git.rtems.org/rtems/commit/?id=382ea27b6a9b2952c541ec7f600517181a4431e2

Author:    Sebastian Huber <sebastian.huber at embedded-brains.de>
Date:      Thu Feb 13 10:04:05 2014 +0100

bsps/arm: Fix Cortex-A9 MPCore nanoseconds handler

---

 .../libbsp/arm/shared/arm-a9mpcore-clock-config.c  |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/c/src/lib/libbsp/arm/shared/arm-a9mpcore-clock-config.c b/c/src/lib/libbsp/arm/shared/arm-a9mpcore-clock-config.c
index 6f9990c..375b392 100644
--- a/c/src/lib/libbsp/arm/shared/arm-a9mpcore-clock-config.c
+++ b/c/src/lib/libbsp/arm/shared/arm-a9mpcore-clock-config.c
@@ -129,7 +129,7 @@ static uint32_t a9mpcore_clock_nanoseconds_since_last_tick(void)
     n = gt->cmpvallower - i;
   }
 
-  return (uint32_t) (((c - n - i) * k) >> 32);
+  return (uint32_t) (((c - n + i) * k) >> 32);
 }
 
 #define Clock_driver_support_at_tick() \




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