rt-thread/bsp/nios_ii/startup.c

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2013-01-08 22:40:58 +08:00
/*
* File : startup.c
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2006-2011, RT-Thread Development Team
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rt-thread.org/license/LICENSE
*
* Change Logs:
* Date Author Notes
* 2011-02-14 aozima first implementation for Nios II.
* 2011-03-04 aozima add HEAP and finsh support .
*/
#include <rtthread.h>
#include "system.h"
#include "board.h"
/**
* @addtogroup NIOS_II
*/
/*@{*/
extern int rt_application_init(void);
#ifdef RT_USING_FINSH
extern void finsh_system_init(void);
extern void finsh_set_device(const char* device);
#endif
#ifdef RT_USING_HEAP
extern int _alt_partition_sdram_load_addr;
#endif
/**
* This function will startup RT-Thread RTOS.
*/
void rtthread_startup(void)
{
/* init board */
rt_hw_board_init();
/* show version */
rt_show_version();
/* init tick */
rt_system_tick_init();
/* init kernel object */
rt_system_object_init();
/* init timer system */
rt_system_timer_init();
#ifdef RT_USING_HEAP
rt_system_heap_init( &_alt_partition_sdram_load_addr, (void*)(SDRAM_BASE + SDRAM_SPAN) );
#endif
/* init scheduler system */
rt_system_scheduler_init();
/* init application */
rt_application_init();
/* init timer thread */
rt_system_timer_thread_init();
#ifdef RT_USING_FINSH
/* init finsh */
finsh_system_init();
finsh_set_device("uart");
#endif
/* init idle thread */
rt_thread_idle_init();
/* start scheduler */
rt_system_scheduler_start();
/* never reach here */
return ;
}
int main(void)
{
rt_uint32_t UNUSED level;
/* disable interrupt first */
level = rt_hw_interrupt_disable();
/* startup RT-Thread RTOS */
rtthread_startup();
return 0;
}
/*@}*/