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/*
* Copyright (c) 2011-2024, Shanghai Real-Thread Electronic Technology Co.,Ltd
*
* Change Logs:
* Date Author Notes
* 2022-08-29 RT-Thread first version
*/
#include <rthw.h>
#include <rtthread.h>
int rt_hw_cpu_id(void)
{
int cpu_id;
__asm volatile (
"mrc p15, 0, %0, c0, c0, 5"
:"=r"(cpu_id)
);
cpu_id &= 0xf;
return cpu_id;
}
/**
* @addtogroup ARM CPU
*/
/*@{*/
/** shutdown CPU */
void rt_hw_cpu_shutdown()
{
rt_uint32_t level;
rt_kprintf("shutdown...\n");
level = rt_hw_interrupt_disable();
while (level)
{
RT_ASSERT(0);
}
}
/*@}*/
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