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Reduce debug output; calibrate DM320 timer

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@372 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2007-11-06 16:17:50 +00:00
parent 37637344e4
commit 9048998778
1 changed files with 60 additions and 26 deletions
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86
arch/arm/src/common/up_initialize.c
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@ -1,4 +1,4 @@
/************************************************************
/****************************************************************************
* common/up_initialize.c
*
* Copyright (C) 2007 Gregory Nutt. All rights reserved.
@ -31,11 +31,11 @@
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
************************************************************/
****************************************************************************/
/************************************************************
/****************************************************************************
* Included Files
************************************************************/
****************************************************************************/
#include <nuttx/config.h>
#include <sys/types.h>
@ -45,37 +45,67 @@
#include "up_arch.h"
#include "up_internal.h"
/************************************************************
/****************************************************************************
* Definitions
****************************************************************************/
/* Define to enable timing loop calibration */
#undef CONFIG_ARM_CALIBRATION
/****************************************************************************
* Private Types
************************************************************/
****************************************************************************/
/************************************************************
* Private Function Prototypes
************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/************************************************************
* Global Functions
************************************************************/
/****************************************************************************
* Name: up_calibratedelay
*
* Description:
* Delay loops are provided for short timing loops. This function, if
* enabled, will just wait for 100 seconds. Using a stopwatch, you can
* can then determine if the timing loops are properly calibrated.
*
****************************************************************************/
/************************************************************
#if defined(CONFIG_ARM_CALIBRATION) & defined(CONFIG_DEBUG)
static void up_calibratedelay(void)
{
int i;
lldbg("Beginning 100s delay\n");
for (i = 0; i < 100; i++)
{
up_mdelay(1000);
}
lldbg("End 100s delay\n");
}
#else
# define up_calibratedelay()
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: up_initialize
*
* Description:
* up_initialize will be called once during OS
* initialization after the basic OS services have been
* initialized. The architecture specific details of
* initializing the OS will be handled here. Such things as
* setting up interrupt service routines, starting the
* clock, and registering device drivers are some of the
* things that are different for each processor and hardware
* platform.
* up_initialize will be called once during OS initialization after the
* basic OS services have been initialized. The architecture specific
* details of initializing the OS will be handled here. Such things as
* setting up interrupt service routines, starting the clock, and
* registering device drivers are some of the things that are different
* for each processor and hardware platform.
*
* up_initialize is called after the OS initialized but
* before the init process has been started and before the
* libraries have been initialized. OS services and driver
* services are available.
* up_initialize is called after the OS initialized but before the user
* initialization logic has been started and before the libraries have
* been initialized. OS services and driver services are available.
*
************************************************************/
****************************************************************************/
void up_initialize(void)
{
@ -83,6 +113,10 @@ void up_initialize(void)
current_regs = NULL;
/* Calibrate the timing loop */
up_calibratedelay();
/* Initialize the interrupt subsystem */
up_irqinitialize();