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author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2014-02-12 10:31:38 +0100 |
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committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2014-02-14 10:28:29 +0100 |
commit | 24bf11eca11947d961cc9bb5f7d92dabff169e93 (patch) | |
tree | b28f3aa8a21df91e8feaf324613aa76460559837 /c/src/lib/libbsp/powerpc/mpc8260ads/startup/bspstart.c | |
parent | bsps/arm: Fix Cortex-A9 MPCore nanoseconds handler (diff) | |
download | rtems-24bf11eca11947d961cc9bb5f7d92dabff169e93.tar.bz2 |
score: Add CPU counter support
Add a CPU counter interface to allow access to a free-running counter.
It is useful to measure short time intervals. This can be used for
example to enable profiling of critical low-level functions.
Add two busy wait functions rtems_counter_delay_ticks() and
rtems_counter_delay_nanoseconds() implemented via the CPU counter.
Diffstat (limited to '')
-rw-r--r-- | c/src/lib/libbsp/powerpc/mpc8260ads/startup/bspstart.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/powerpc/mpc8260ads/startup/bspstart.c b/c/src/lib/libbsp/powerpc/mpc8260ads/startup/bspstart.c index d736f248ec..ef18cee7fd 100644 --- a/c/src/lib/libbsp/powerpc/mpc8260ads/startup/bspstart.c +++ b/c/src/lib/libbsp/powerpc/mpc8260ads/startup/bspstart.c @@ -44,6 +44,7 @@ #include <rtems/powerpc/powerpc.h> #include <rtems/bspIo.h> +#include <rtems/counter.h> #include <bsp/irq.h> #include <libcpu/cpuIdent.h> #include <libcpu/spr.h> @@ -208,6 +209,7 @@ void bsp_start(void) bsp_timer_average_overhead = 3; bsp_timer_least_valid = 3; bsp_clock_speed = 40000000; + rtems_counter_initialize_converter(bsp_clock_speed); #ifdef REV_0_2 /* set up some board specific registers */ |