2007-11-06 17:17:50 +01:00
|
|
|
/****************************************************************************
|
2008-09-30 14:26:12 +02:00
|
|
|
* arch/arm/src/common/up_initialize.c
|
2007-04-28 21:39:18 +02:00
|
|
|
*
|
2009-04-11 00:07:20 +02:00
|
|
|
* Copyright (C) 2007-2009 Gregory Nutt. All rights reserved.
|
2007-04-28 21:39:18 +02:00
|
|
|
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
|
|
|
*
|
|
|
|
* Redistribution and use in source and binary forms, with or without
|
|
|
|
* modification, are permitted provided that the following conditions
|
|
|
|
* are met:
|
|
|
|
*
|
|
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
|
|
* notice, this list of conditions and the following disclaimer.
|
|
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
|
|
* notice, this list of conditions and the following disclaimer in
|
|
|
|
* the documentation and/or other materials provided with the
|
|
|
|
* distribution.
|
2008-09-30 14:26:12 +02:00
|
|
|
* 3. Neither the name NuttX nor the names of its contributors may be
|
2007-04-28 21:39:18 +02:00
|
|
|
* used to endorse or promote products derived from this software
|
|
|
|
* without specific prior written permission.
|
|
|
|
*
|
|
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
|
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
|
|
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
|
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
|
|
|
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
|
|
|
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
|
|
|
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
*
|
2007-11-06 17:17:50 +01:00
|
|
|
****************************************************************************/
|
2007-04-28 21:39:18 +02:00
|
|
|
|
2007-11-06 17:17:50 +01:00
|
|
|
/****************************************************************************
|
2007-04-28 21:39:18 +02:00
|
|
|
* Included Files
|
2007-11-06 17:17:50 +01:00
|
|
|
****************************************************************************/
|
2007-04-28 21:39:18 +02:00
|
|
|
|
|
|
|
#include <nuttx/config.h>
|
2008-09-30 14:26:12 +02:00
|
|
|
|
2007-04-28 21:39:18 +02:00
|
|
|
#include <debug.h>
|
2008-09-30 14:26:12 +02:00
|
|
|
|
2007-04-28 21:39:18 +02:00
|
|
|
#include <nuttx/arch.h>
|
|
|
|
#include <nuttx/fs.h>
|
2009-12-28 01:49:32 +01:00
|
|
|
#include <arch/board/board.h>
|
2008-09-30 14:26:12 +02:00
|
|
|
|
2007-04-28 21:39:18 +02:00
|
|
|
#include "up_arch.h"
|
|
|
|
#include "up_internal.h"
|
|
|
|
|
2007-11-06 17:17:50 +01:00
|
|
|
/****************************************************************************
|
2009-12-16 21:05:51 +01:00
|
|
|
* Pre-processor Definitions
|
2007-11-06 17:17:50 +01:00
|
|
|
****************************************************************************/
|
|
|
|
|
|
|
|
/****************************************************************************
|
2007-04-28 21:39:18 +02:00
|
|
|
* Private Types
|
2007-11-06 17:17:50 +01:00
|
|
|
****************************************************************************/
|
2007-04-28 21:39:18 +02:00
|
|
|
|
2007-11-06 17:17:50 +01:00
|
|
|
/****************************************************************************
|
|
|
|
* Private Functions
|
|
|
|
****************************************************************************/
|
2007-04-28 21:39:18 +02:00
|
|
|
|
2007-11-06 17:17:50 +01:00
|
|
|
/****************************************************************************
|
|
|
|
* 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.
|
|
|
|
*
|
|
|
|
****************************************************************************/
|
2007-04-28 21:39:18 +02:00
|
|
|
|
2009-05-19 01:01:30 +02:00
|
|
|
#if defined(CONFIG_ARCH_CALIBRATION) && defined(CONFIG_DEBUG)
|
2007-11-06 17:17:50 +01:00
|
|
|
static void up_calibratedelay(void)
|
|
|
|
{
|
|
|
|
int i;
|
2009-05-19 01:01:30 +02:00
|
|
|
lldbg("Beginning 100s delay\n");
|
2007-11-06 17:17:50 +01:00
|
|
|
for (i = 0; i < 100; i++)
|
|
|
|
{
|
|
|
|
up_mdelay(1000);
|
|
|
|
}
|
2009-05-19 01:01:30 +02:00
|
|
|
lldbg("End 100s delay\n");
|
2007-11-06 17:17:50 +01:00
|
|
|
}
|
|
|
|
#else
|
|
|
|
# define up_calibratedelay()
|
|
|
|
#endif
|
|
|
|
|
|
|
|
/****************************************************************************
|
|
|
|
* Public Functions
|
|
|
|
****************************************************************************/
|
|
|
|
|
|
|
|
/****************************************************************************
|
2007-04-28 21:39:18 +02:00
|
|
|
* Name: up_initialize
|
|
|
|
*
|
|
|
|
* Description:
|
2007-11-06 17:17:50 +01:00
|
|
|
* 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.
|
2007-04-28 21:39:18 +02:00
|
|
|
*
|
2007-11-06 17:17:50 +01:00
|
|
|
* 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.
|
2007-04-28 21:39:18 +02:00
|
|
|
*
|
2007-11-06 17:17:50 +01:00
|
|
|
****************************************************************************/
|
2007-04-28 21:39:18 +02:00
|
|
|
|
|
|
|
void up_initialize(void)
|
|
|
|
{
|
|
|
|
/* Initialize global variables */
|
|
|
|
|
|
|
|
current_regs = NULL;
|
|
|
|
|
2007-11-06 17:17:50 +01:00
|
|
|
/* Calibrate the timing loop */
|
|
|
|
|
|
|
|
up_calibratedelay();
|
|
|
|
|
2009-04-11 00:07:20 +02:00
|
|
|
/* Add any extra memory fragments to the memory manager */
|
|
|
|
|
|
|
|
up_addregion();
|
|
|
|
|
2007-04-28 21:39:18 +02:00
|
|
|
/* Initialize the interrupt subsystem */
|
|
|
|
|
|
|
|
up_irqinitialize();
|
|
|
|
|
2009-11-26 01:18:22 +01:00
|
|
|
/* Initialize the DMA subsystem if the weak function stm32_dmainitialize has been
|
|
|
|
* brought into the build
|
|
|
|
*/
|
|
|
|
|
|
|
|
#ifdef CONFIG_ARCH_DMA
|
|
|
|
#ifdef CONFIG_HAVE_WEAKFUNCTIONS
|
|
|
|
if (up_dmainitialize)
|
|
|
|
#endif
|
|
|
|
{
|
|
|
|
up_dmainitialize();
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
2007-04-28 21:39:18 +02:00
|
|
|
/* Initialize the system timer interrupt */
|
|
|
|
|
|
|
|
#if !defined(CONFIG_SUPPRESS_INTERRUPTS) && !defined(CONFIG_SUPPRESS_TIMER_INTS)
|
|
|
|
up_timerinit();
|
|
|
|
#endif
|
|
|
|
|
|
|
|
/* Register devices */
|
|
|
|
|
2007-11-20 21:32:33 +01:00
|
|
|
#if CONFIG_NFILE_DESCRIPTORS > 0
|
2007-04-28 21:39:18 +02:00
|
|
|
devnull_register(); /* Standard /dev/null */
|
2007-11-20 21:32:33 +01:00
|
|
|
#endif
|
2007-04-28 21:39:18 +02:00
|
|
|
|
|
|
|
/* Initialize the serial device driver */
|
|
|
|
|
2008-09-18 16:48:26 +02:00
|
|
|
#ifdef CONFIG_USE_SERIALDRIVER
|
2007-04-28 21:39:18 +02:00
|
|
|
up_serialinit();
|
2008-09-18 16:48:26 +02:00
|
|
|
#elif defined(CONFIG_DEV_LOWCONSOLE)
|
|
|
|
lowconsole_init();
|
|
|
|
#endif
|
2007-11-02 21:20:34 +01:00
|
|
|
|
|
|
|
/* Initialize the netwok */
|
|
|
|
|
|
|
|
up_netinitialize();
|
2008-09-30 14:26:12 +02:00
|
|
|
|
|
|
|
/* Initializ USB */
|
|
|
|
|
|
|
|
up_usbinitialize();
|
|
|
|
|
2007-04-28 21:39:18 +02:00
|
|
|
up_ledon(LED_IRQSENABLED);
|
|
|
|
}
|