94 lines
2.3 KiB
C
94 lines
2.3 KiB
C
/*
|
|
* Copyright (c) 2006-2020, RT-Thread Development Team
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*
|
|
* Change Logs:
|
|
* Date Author Notes
|
|
* 2020-04-16 bigmagic first version
|
|
*/
|
|
|
|
#include <rthw.h>
|
|
#include <rtthread.h>
|
|
|
|
#include "board.h"
|
|
#include "drv_uart.h"
|
|
|
|
#include "cp15.h"
|
|
#include "mmu.h"
|
|
|
|
static rt_uint64_t timerStep;
|
|
|
|
int rt_hw_get_gtimer_frq(void);
|
|
void rt_hw_set_gtimer_val(rt_uint64_t value);
|
|
int rt_hw_get_gtimer_val(void);
|
|
int rt_hw_get_cntpct_val(void);
|
|
void rt_hw_gtimer_enable(void);
|
|
|
|
void core0_timer_enable_interrupt_controller(void)
|
|
{
|
|
CORE0_TIMER_IRQ_CTRL |= NON_SECURE_TIMER_IRQ;
|
|
}
|
|
|
|
void rt_hw_timer_isr(int vector, void *parameter)
|
|
{
|
|
rt_hw_set_gtimer_val(timerStep);
|
|
rt_tick_increase();
|
|
}
|
|
|
|
void rt_hw_timer_init(void)
|
|
{
|
|
rt_hw_interrupt_install(TIMER_IRQ, rt_hw_timer_isr, RT_NULL, "tick");
|
|
rt_hw_interrupt_umask(TIMER_IRQ);
|
|
__ISB();
|
|
timerStep = rt_hw_get_gtimer_frq();
|
|
__DSB();
|
|
timerStep /= RT_TICK_PER_SECOND;
|
|
|
|
rt_hw_gtimer_enable();
|
|
rt_hw_set_gtimer_val(timerStep);
|
|
core0_timer_enable_interrupt_controller();
|
|
}
|
|
|
|
void idle_wfi(void)
|
|
{
|
|
asm volatile ("wfi");
|
|
}
|
|
|
|
/**
|
|
* Initialize the Hardware related stuffs. Called from rtthread_startup()
|
|
* after interrupt disabled.
|
|
*/
|
|
void rt_hw_board_init(void)
|
|
{
|
|
mmu_init();
|
|
armv8_map(0, 0, 0x6400000, MEM_ATTR_MEMORY);
|
|
armv8_map(0xFE200000, 0xFE200000, 0x200000, MEM_ATTR_IO);//uart gpio
|
|
armv8_map(0xFF800000, 0xFF800000, 0x200000, MEM_ATTR_IO);//gic timer
|
|
mmu_enable();
|
|
|
|
/* initialize hardware interrupt */
|
|
rt_hw_interrupt_init(); // in libcpu/interrupt.c. Set some data structures, no operation on device
|
|
rt_hw_vector_init(); // in libcpu/interrupt.c. == rt_cpu_vector_set_base((rt_ubase_t)&system_vectors);
|
|
|
|
/* initialize uart */
|
|
rt_hw_uart_init(); // driver/drv_uart.c
|
|
#ifdef RT_USING_CONSOLE
|
|
/* set console device */
|
|
rt_console_set_device(RT_CONSOLE_DEVICE_NAME);
|
|
#endif /* RT_USING_CONSOLE */
|
|
|
|
#ifdef RT_USING_HEAP
|
|
/* initialize memory system */
|
|
rt_kprintf("heap: 0x%08x - 0x%08x\n", RT_HW_HEAP_BEGIN, RT_HW_HEAP_END);
|
|
rt_system_heap_init(RT_HW_HEAP_BEGIN, RT_HW_HEAP_END);
|
|
#endif
|
|
/* initialize timer for os tick */
|
|
rt_hw_timer_init();
|
|
rt_thread_idle_sethook(idle_wfi);
|
|
|
|
#ifdef RT_USING_COMPONENTS_INIT
|
|
rt_components_board_init();
|
|
#endif
|
|
}
|