Changeset 65f868c in rtems for bsps/powerpc/psim

Timestamp:

May 23, 2018, 12:17:25 PM (3 years ago)

Author:

Sebastian Huber <sebastian.huber@…>

Branches:

5, master

Children:

762fa62

Parents:

4c7b18e3

git-author:

Sebastian Huber <sebastian.huber@…> (05/23/18 12:17:25)

git-committer:

Sebastian Huber <sebastian.huber@…> (06/15/18 11:02:44)

Message:

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.

File:

• bsps/powerpc/psim/start/bspstart.c (modified) (2 diffs)

bsps/powerpc/psim/start/bspstart.c

@@ -61 +61 @@
 extern unsigned long __rtems_end[];
 
+uint32_t _CPU_Counter_frequency(void)
+{
+  return bsp_clicks_per_usec * 1000000;
+}
+
 /*
  *  bsp_start
@@ -82 +87 @@
   bsp_clicks_per_usec      = BSP_bus_frequency;
   BSP_time_base_divisor    = 1;
-  rtems_counter_initialize_converter(bsp_clicks_per_usec * 1000000);
 
   /*