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author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2018-05-23 14:17:25 +0200 |
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committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2018-06-15 13:02:44 +0200 |
commit | 65f868cac6f7fd5c3ad02046574c19f8f4673255 (patch) | |
tree | 15103fb87ed2e7161c17006e2c077f35e3506a95 /bsps/powerpc/gen83xx | |
parent | Add RTEMS_SYSINIT_CPU_COUNTER (diff) | |
download | rtems-65f868cac6f7fd5c3ad02046574c19f8f4673255.tar.bz2 |
Add _CPU_Counter_frequency()
Add rtems_counter_frequency() API function. Use it to initialize the
counter value converter via the new system initialization step
(RTEMS_SYSINIT_CPU_COUNTER). This decouples the counter implementation
and the counter converter. It avoids an unnecessary pull in of the
64-bit integer division from libgcc.
Update #3456.
Diffstat (limited to 'bsps/powerpc/gen83xx')
-rw-r--r-- | bsps/powerpc/gen83xx/start/bspstart.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/bsps/powerpc/gen83xx/start/bspstart.c b/bsps/powerpc/gen83xx/start/bspstart.c index cd729a8e17..4070c56347 100644 --- a/bsps/powerpc/gen83xx/start/bspstart.c +++ b/bsps/powerpc/gen83xx/start/bspstart.c @@ -51,6 +51,11 @@ static int mpc83xx_decrementer_exception_handler( BSP_Exception_frame *frame, un return 0; } +uint32_t _CPU_Counter_frequency(void) +{ + return bsp_time_base_frequency; +} + void bsp_start( void) { rtems_status_code sc = RTEMS_SUCCESSFUL; @@ -92,7 +97,6 @@ void bsp_start( void) #endif /* HAS_UBOOT */ bsp_time_base_frequency = BSP_bus_frequency / 4; bsp_clicks_per_usec = bsp_time_base_frequency / 1000000; - rtems_counter_initialize_converter(bsp_time_base_frequency); /* Initialize some console parameters */ for (i = 0; i < console_device_count; ++i) { |