95 lines
1.8 KiB
C
95 lines
1.8 KiB
C
|
/*
|
||
|
|
* File : startup.c
|
||
|
|
* This file is part of RT-Thread RTOS
|
||
|
|
* COPYRIGHT (C) 2006-2011, RT-Thread Develop 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
|
||
|
|
* 2010-06-25 Bernard first version
|
||
|
|
* 2011-08-08 lgnq modified for Loongson LS1B
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <rthw.h>
|
||
|
|
#include <rtthread.h>
|
||
|
|
|
||
|
|
#include "board.h"
|
||
|
|
#define A_K0BASE 0x80000000
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @addtogroup Loongson LS1B
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*@{*/
|
||
|
|
extern unsigned char __bss_end;
|
||
|
|
|
||
|
|
extern int rt_application_init(void);
|
||
|
|
|
||
|
|
extern void tlb_refill_exception(void);
|
||
|
|
extern void general_exception(void);
|
||
|
|
extern void irq_exception(void);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* This function will startup RT-Thread RTOS.
|
||
|
|
*/
|
||
|
|
void rtthread_startup(void)
|
||
|
|
{
|
||
|
|
/* disable interrupt first */
|
||
|
|
rt_hw_interrupt_disable();
|
||
|
|
|
||
|
|
/* init cache */
|
||
|
|
rt_hw_cache_init();
|
||
|
|
/* init hardware interrupt */
|
||
|
|
rt_hw_interrupt_init();
|
||
|
|
|
||
|
|
/* copy vector */
|
||
|
|
memcpy((void *)A_K0BASE, tlb_refill_exception, 0x20);
|
||
|
|
memcpy((void *)(A_K0BASE + 0x180), general_exception, 0x20);
|
||
|
|
memcpy((void *)(A_K0BASE + 0x200), irq_exception, 0x20);
|
||
|
|
|
||
|
|
/* init board */
|
||
|
|
rt_hw_board_init();
|
||
|
|
rt_show_version();
|
||
|
|
|
||
|
|
/* init tick */
|
||
|
|
rt_system_tick_init();
|
||
|
|
|
||
|
|
/* init timer system */
|
||
|
|
rt_system_timer_init();
|
||
|
|
|
||
|
|
#ifdef RT_USING_HEAP
|
||
|
|
rt_system_heap_init((void*)&__bss_end, (void*)RT_HW_HEAP_END);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* init scheduler system */
|
||
|
|
rt_system_scheduler_init();
|
||
|
|
|
||
|
|
#ifdef RT_USING_DEVICE
|
||
|
|
/* init all device */
|
||
|
|
rt_device_init_all();
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* init application */
|
||
|
|
rt_application_init();
|
||
|
|
|
||
|
|
#ifdef RT_USING_FINSH
|
||
|
|
/* init finsh */
|
||
|
|
finsh_system_init();
|
||
|
|
finsh_set_device(FINSH_DEVICE_NAME);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* init idle thread */
|
||
|
|
rt_thread_idle_init();
|
||
|
|
|
||
|
|
/* start scheduler */
|
||
|
|
rt_system_scheduler_start();
|
||
|
|
|
||
|
|
/* never reach here */
|
||
|
|
return ;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*@}*/
|