/* * Copyright (c) 2006-2021, RT-Thread Development Team * * SPDX-License-Identifier: Apache-2.0 * * Change Logs: * Date Author Notes * 2019-07-23 tyustli first version * */ #include #include #include #include "board.h" #ifdef RT_USING_SERIAL #include #endif /* System Tick Configuration */ static void systick_config(rt_uint32_t ticks) { /* set value */ *(rt_uint64_t *) (TMR_CTRL_ADDR + TMR_MTIMECMP) = ticks; /* enable interrupt */ eclic_irq_enable(CLIC_INT_TMR, 0, 0); /* clear value */ *(rt_uint64_t *) (TMR_CTRL_ADDR + TMR_MTIME) = 0; } /* This is the timer interrupt service routine. */ void eclic_mtip_handler(void) { /* clear value */ *(rt_uint64_t *) (TMR_CTRL_ADDR + TMR_MTIME) = 0; /* enter interrupt */ rt_interrupt_enter(); /* tick increase */ rt_tick_increase(); /* leave interrupt */ rt_interrupt_leave(); } /* fixed misaligned bug for qemu */ void *__wrap_memset(void *s, int c, size_t n) { return rt_memset(s, c, n); } void rt_hw_board_init(void) { extern void riscv_clock_init(void); riscv_clock_init(); systick_config(TMR_FREQ / RT_TICK_PER_SECOND); #ifdef RT_USING_HEAP rt_system_heap_init((void *) HEAP_BEGIN, (void *) HEAP_END); #endif /* USART driver initialization is open by default */ #ifdef RT_USING_SERIAL rt_hw_usart_init(); #endif /* Set the shell console output device */ #if defined(RT_USING_CONSOLE) && defined(RT_USING_DEVICE) rt_console_set_device(RT_CONSOLE_DEVICE_NAME); #endif /* Board underlying hardware initialization */ #ifdef RT_USING_COMPONENTS_INIT rt_components_board_init(); #endif } /******************** end of file *******************/