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Diffstat (limited to 'bsps/arm/shared/cpucounter/cpucounter-armv7m.c')
-rw-r--r--bsps/arm/shared/cpucounter/cpucounter-armv7m.c23
1 files changed, 12 insertions, 11 deletions
diff --git a/bsps/arm/shared/cpucounter/cpucounter-armv7m.c b/bsps/arm/shared/cpucounter/cpucounter-armv7m.c
index 7d2581879f..b7593602ed 100644
--- a/bsps/arm/shared/cpucounter/cpucounter-armv7m.c
+++ b/bsps/arm/shared/cpucounter/cpucounter-armv7m.c
@@ -19,6 +19,16 @@
#include <bsp.h>
#include <bsp/fatal.h>
+uint32_t _CPU_Counter_frequency(void)
+{
+#ifdef BSP_ARMV7M_SYSTICK_FREQUENCY
+ return = BSP_ARMV7M_SYSTICK_FREQUENCY;
+#else
+ volatile ARMV7M_Systick *systick = _ARMV7M_Systick;
+ return ARMV7M_SYSTICK_CALIB_TENMS_GET(systick->calib) * 100;
+#endif
+}
+
CPU_Counter_ticks _CPU_Counter_read(void)
{
volatile ARMV7M_DWT *dwt = _ARMV7M_DWT;
@@ -32,22 +42,13 @@ static void armv7m_cpu_counter_initialize(void)
cyccnt_enabled = _ARMV7M_DWT_Enable_CYCCNT();
- if (cyccnt_enabled) {
- #ifdef BSP_ARMV7M_SYSTICK_FREQUENCY
- uint64_t freq = BSP_ARMV7M_SYSTICK_FREQUENCY;
- #else
- volatile ARMV7M_Systick *systick = _ARMV7M_Systick;
- uint64_t freq = ARMV7M_SYSTICK_CALIB_TENMS_GET(systick->calib) * 100ULL;
- #endif
-
- rtems_counter_initialize_converter(freq);
- } else {
+ if (!cyccnt_enabled) {
bsp_fatal(BSP_ARM_ARMV7M_CPU_COUNTER_INIT);
}
}
RTEMS_SYSINIT_ITEM(
armv7m_cpu_counter_initialize,
- RTEMS_SYSINIT_BSP_START,
+ RTEMS_SYSINIT_CPU_COUNTER,
RTEMS_SYSINIT_ORDER_FIRST
);