191 lines
4.0 KiB
C
Executable File
191 lines
4.0 KiB
C
Executable File
/*
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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, 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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* 2011-01-13 weety first version
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*/
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#include <rthw.h>
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#include <rtthread.h>
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#include <at91sam926x.h>
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#ifdef RT_USING_FINSH
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#include <finsh.h>
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#endif
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#ifdef RT_USING_DEVICE
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#include <serial.h>
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#endif
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extern void rt_hw_interrupt_init(void);
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extern void rt_hw_board_init(void);
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extern void rt_serial_init(void);
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extern void rt_system_timer_init(void);
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extern void rt_system_scheduler_init(void);
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extern void rt_thread_idle_init(void);
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extern void mmu_invalidate_icache();
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extern void rt_hw_cpu_icache_enable(void);
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extern void rt_show_version(void);
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extern void rt_system_heap_init(void*, void*);
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extern void rt_hw_finsh_init(void);
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extern void rt_application_init(void);
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extern struct serial_device uart0;
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extern struct rt_device uart0_device;
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/**
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* @addtogroup at91sam9260
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*/
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/*@{*/
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#if defined(__CC_ARM)
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extern int Image$$ER_ZI$$ZI$$Base;
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extern int Image$$ER_ZI$$ZI$$Length;
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extern int Image$$ER_ZI$$ZI$$Limit;
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#elif (defined (__GNUC__))
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rt_uint8_t _irq_stack_start[1024];
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rt_uint8_t _fiq_stack_start[1024];
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rt_uint8_t _undefined_stack_start[512];
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rt_uint8_t _abort_stack_start[512];
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rt_uint8_t _svc_stack_start[4096] SECTION(".nobss");
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extern unsigned char __bss_start;
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extern unsigned char __bss_end;
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#endif
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#ifdef RT_USING_FINSH
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extern void finsh_system_init(void);
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#endif
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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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/* enable cpu cache */
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rt_hw_cpu_icache_disable();
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mmu_invalidate_icache();
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rt_hw_cpu_icache_enable();
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/* initialize hardware interrupt */
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rt_hw_interrupt_init();
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/* initialize 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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/* initialize tick */
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rt_system_tick_init();
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/* initialize kernel object */
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rt_system_object_init();
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/* initialize timer system */
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rt_system_timer_init();
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/* initialize heap memory system */
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#ifdef __CC_ARM
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rt_system_heap_init((void*)&Image$$ER_ZI$$ZI$$Limit, (void*)0x24000000);
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#else
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rt_system_heap_init((void*)&__bss_end, (void*)0x23f00000);
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#endif
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#ifdef RT_USING_MODULE
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/* initialize module system*/
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rt_system_module_init();
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#endif
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/* initialize scheduler system */
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rt_system_scheduler_init();
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#ifdef RT_USING_DEVICE
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#ifdef RT_USING_DBGU
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/* register dbgu */
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rt_hw_serial_register(&uart0_device, "uart0",
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RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_STREAM | RT_DEVICE_FLAG_INT_RX,
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&uart0);
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#endif
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#ifdef RT_USING_UART0
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/* register uart0 */
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rt_hw_serial_register(&uart1_device, "uart1",
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RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_STREAM | RT_DEVICE_FLAG_INT_RX,
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&uart1);
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#endif
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#ifdef RT_USING_UART1
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/* register uart1 */
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rt_hw_serial_register(&uart2_device, "uart2",
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RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_STREAM | RT_DEVICE_FLAG_INT_RX,
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&uart2);
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#endif
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#ifdef RT_USING_UART2
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/* register uart2 */
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rt_hw_serial_register(&uart3_device, "uart3",
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RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_STREAM | RT_DEVICE_FLAG_INT_RX,
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&uart3);
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#endif
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#ifdef RT_USING_UART3
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/* register uart3 */
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rt_hw_serial_register(&uart4_device, "uart4",
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RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_STREAM | RT_DEVICE_FLAG_INT_RX,
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&uart4);
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#endif
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#ifdef RT_USING_DFS
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//rt_hw_sdcard_init();
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#endif
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/*init all registed devices */
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rt_device_init_all();
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#endif
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/* initialize application */
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rt_application_init();
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#ifdef RT_USING_FINSH
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/* initialize finsh */
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finsh_system_init();
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#ifdef RT_USING_DEVICE
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#ifdef RT_USING_DBGU
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finsh_set_device("uart0");
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#endif
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#endif
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#endif
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/* initialize system timer thread */
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rt_system_timer_thread_init();
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/* initialize idle thread */
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rt_thread_idle_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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int main(void)
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{
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/* startup RT-Thread RTOS */
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rtthread_startup();
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return 0;
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}
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/*@}*/
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