152 lines
4.8 KiB
C
152 lines
4.8 KiB
C
/****************************************************************************
|
|
* arch/arm/src/common/arm_initialize.c
|
|
*
|
|
* Licensed to the Apache Software Foundation (ASF) under one or more
|
|
* contributor license agreements. See the NOTICE file distributed with
|
|
* this work for additional information regarding copyright ownership. The
|
|
* ASF licenses this file to you under the Apache License, Version 2.0 (the
|
|
* "License"); you may not use this file except in compliance with the
|
|
* License. You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
* License for the specific language governing permissions and limitations
|
|
* under the License.
|
|
*
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/arch.h>
|
|
#include <nuttx/board.h>
|
|
#include <arch/board/board.h>
|
|
|
|
#include "arm_internal.h"
|
|
|
|
/****************************************************************************
|
|
* Public Data
|
|
****************************************************************************/
|
|
|
|
/* g_current_regs[] holds a references to the current interrupt level
|
|
* register storage structure. If is non-NULL only during interrupt
|
|
* processing. Access to g_current_regs[] must be through the macro
|
|
* CURRENT_REGS for portability.
|
|
*/
|
|
|
|
volatile uint32_t *g_current_regs[CONFIG_SMP_NCPUS];
|
|
|
|
/****************************************************************************
|
|
* Private Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: arm_color_intstack
|
|
*
|
|
* Description:
|
|
* Set the interrupt stack to a value so that later we can determine how
|
|
* much stack space was used by interrupt handling logic
|
|
*
|
|
****************************************************************************/
|
|
|
|
#if defined(CONFIG_STACK_COLORATION) && CONFIG_ARCH_INTERRUPTSTACK > 3
|
|
static inline void arm_color_intstack(void)
|
|
{
|
|
#ifdef CONFIG_SMP
|
|
uint32_t *ptr = (uint32_t *)arm_intstack_alloc();
|
|
#else
|
|
uint32_t *ptr = (uint32_t *)g_intstackalloc;
|
|
#endif
|
|
ssize_t size;
|
|
|
|
for (size = ((CONFIG_ARCH_INTERRUPTSTACK & ~3) * CONFIG_SMP_NCPUS);
|
|
size > 0;
|
|
size -= sizeof(uint32_t))
|
|
{
|
|
*ptr++ = INTSTACK_COLOR;
|
|
}
|
|
}
|
|
#else
|
|
# define arm_color_intstack()
|
|
#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 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)
|
|
{
|
|
/* Colorize the interrupt stack */
|
|
|
|
arm_color_intstack();
|
|
|
|
/* Add any extra memory fragments to the memory manager */
|
|
|
|
arm_addregion();
|
|
|
|
#ifdef CONFIG_PM
|
|
/* Initialize the power management subsystem. This MCU-specific function
|
|
* must be called *very* early in the initialization sequence *before* any
|
|
* other device drivers are initialized (since they may attempt to register
|
|
* with the power management subsystem).
|
|
*/
|
|
|
|
arm_pminitialize();
|
|
#endif
|
|
|
|
#ifdef CONFIG_ARCH_DMA
|
|
/* Initialize the DMA subsystem if the weak function arm_dma_initialize has
|
|
* been brought into the build
|
|
*/
|
|
|
|
#ifdef CONFIG_HAVE_WEAKFUNCTIONS
|
|
if (arm_dma_initialize)
|
|
#endif
|
|
{
|
|
arm_dma_initialize();
|
|
}
|
|
#endif
|
|
|
|
/* Initialize the serial device driver */
|
|
|
|
#ifdef USE_SERIALDRIVER
|
|
arm_serialinit();
|
|
#endif
|
|
|
|
/* Initialize the network */
|
|
|
|
arm_netinitialize();
|
|
|
|
#if defined(CONFIG_USBDEV) || defined(CONFIG_USBHOST)
|
|
/* Initialize USB -- device and/or host */
|
|
|
|
arm_usbinitialize();
|
|
#endif
|
|
|
|
/* Initialize the L2 cache if present and selected */
|
|
|
|
arm_l2ccinitialize();
|
|
board_autoled_on(LED_IRQSENABLED);
|
|
}
|