2015-07-09 07:38:07 +08:00
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/*
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* File : startup.c
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* This file is part of RT-Thread RTOS
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* COPYRIGHT (C) 2006-2012, RT-Thread Develop Team
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rt-thread.org/license/LICENSE
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*
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* Change Logs:
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* Date Author Notes
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* 2010-06-25 Bernard first version
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* 2011-08-08 lgnq modified for Loongson LS1B
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* 2015-07-06 chinesebear modified for Loongson LS1C
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*/
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#include <rthw.h>
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#include <rtthread.h>
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#include "board.h"
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#define A_K0BASE 0x80000000
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/**
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* @addtogroup Loongson LS1B
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*/
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/*@{*/
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extern unsigned char __bss_end;
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extern int rt_application_init(void);
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extern void tlb_refill_exception(void);
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extern void general_exception(void);
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extern void irq_exception(void);
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2016-06-15 23:09:56 +08:00
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extern void rt_hw_cache_init(void);
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extern void invalidate_writeback_dcache_all(void);
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extern void invalidate_icache_all(void);
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2015-07-09 07:38:07 +08:00
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/**
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* This function will startup RT-Thread RTOS.
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*/
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void rtthread_startup(void)
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{
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/* disable interrupt first */
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rt_hw_interrupt_disable();
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/* init cache */
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rt_hw_cache_init();
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/* init hardware interrupt */
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rt_hw_interrupt_init();
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/* copy vector */
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rt_memcpy((void *)A_K0BASE, tlb_refill_exception, 0x20);
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rt_memcpy((void *)(A_K0BASE + 0x180), general_exception, 0x20);
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rt_memcpy((void *)(A_K0BASE + 0x200), irq_exception, 0x20);
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2016-06-15 23:09:56 +08:00
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invalidate_writeback_dcache_all();
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invalidate_icache_all();
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2015-07-09 07:38:07 +08:00
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/* init board */
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rt_hw_board_init();
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/* show version */
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rt_show_version();
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#ifdef RT_USING_HEAP
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rt_system_heap_init((void*)&__bss_end, (void*)RT_HW_HEAP_END);
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#endif
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/* init scheduler system */
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rt_system_scheduler_init();
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/* initialize timer */
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rt_system_timer_init();
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/* initialize timer thread */
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rt_system_timer_thread_init();
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/* init idle thread */
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rt_thread_idle_init();
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/* init application */
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rt_application_init();
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/* start scheduler */
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rt_system_scheduler_start();
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/* never reach here */
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return;
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}
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/*@}*/
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