rt-thread-official/bsp/qemu-riscv-virt64/driver/board.c

71 lines
1.4 KiB
C

/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2021-01-30 lizhirui first version
*/
#include <rthw.h>
#include <rtthread.h>
#include <rtdevice.h>
#include "board.h"
#include "tick.h"
#include "drv_uart.h"
#include "encoding.h"
#include "stack.h"
#include "sbi.h"
#include "riscv.h"
#include "stack.h"
#include "riscv_io.h"
#include "plic.h"
#include "interrupt.h"
void primary_cpu_entry(void)
{
extern void entry(void);
/* disable global interrupt */
rt_memset(&__bss_start, 0x0, (rt_uint8_t*)&__bss_end - (rt_uint8_t*)&__bss_start);
rt_hw_interrupt_disable();
entry();
}
void rt_hw_board_init(void)
{
/* initalize interrupt */
rt_hw_interrupt_init();
/* initialize hardware interrupt */
rt_hw_uart_init();
#ifdef RT_USING_HEAP
/* initialize memory system */
rt_system_heap_init(RT_HW_HEAP_BEGIN, RT_HW_HEAP_END);
#endif
#if defined(RT_USING_CONSOLE) && defined(RT_USING_DEVICE)
/* set console device */
rt_console_set_device("uart");
#endif
rt_hw_tick_init();
rt_kprintf("heap: [0x%08x - 0x%08x]\n", (rt_ubase_t) RT_HW_HEAP_BEGIN, (rt_ubase_t) RT_HW_HEAP_END);
#ifdef RT_USING_COMPONENTS_INIT
rt_components_board_init();
#endif
}
void rt_hw_cpu_reset(void)
{
sbi_shutdown();
while(1);
}
MSH_CMD_EXPORT_ALIAS(rt_hw_cpu_reset, reboot, reset machine);