1 /*
2  * Copyright (c) 2006-2022, RT-Thread Development Team
3  *
4  * SPDX-License-Identifier: Apache-2.0
5  *
6  * Change Logs:
7  * Date           Author       Notes
8  * 2022-12-08     WangShun     the first version
9  * 2022-12-13     WangShun     put the rt_system_heap_init in head
10  */
11 
12 #include <stdint.h>
13 #include <rthw.h>
14 #include <rtthread.h>
15 #include "udma_uart_driver.h"
16 #include "hal_udma_ctrl_reg_defs.h"
17 #include "hal_udma_uart_reg_defs.h"
18 #include "core-v-mcu-config.h"
19 #include "drv_usart.h"
20 #include "string.h"
21 
22 extern void rt_systick_config(void);
23 
24 #if defined(RT_USING_USER_MAIN) && defined(RT_USING_HEAP)
25 #define RT_HEAP_SIZE (64*1024)
26 static rt_uint8_t rt_heap[RT_HEAP_SIZE];
rt_heap_begin_get(void)27 void *rt_heap_begin_get(void)
28 {
29     return rt_heap;
30 }
rt_heap_end_get(void)31 void *rt_heap_end_get(void)
32 {
33     return rt_heap + RT_HEAP_SIZE;
34 }
35 #endif
36 
rt_hw_board_init()37 void rt_hw_board_init()
38 {
39     /*Initialize heap first, or system_ Semaphore in init cannot be created*/
40 #if defined(RT_USING_USER_MAIN) && defined(RT_USING_HEAP)
41     rt_system_heap_init(rt_heap_begin_get(), rt_heap_end_get());
42 #endif
43     /* System Clock Update */
44     extern void system_init(void);
45     system_init();
46     /* System Tick Configuration */
47     rt_systick_config();
48 
49     volatile uint32_t mtvec = 0;
50     __asm volatile( "csrr %0, mtvec" : "=r"( mtvec ) );
51     __asm volatile( "csrs mie, %0" :: "r"(0x880) );
52 
53     /* USART driver initialization is open by default */
54 #ifdef RT_USING_SERIAL
55     rt_hw_usart_init();
56 #endif
57 #ifdef RT_USING_CONSOLE
58     rt_console_set_device(RT_CONSOLE_DEVICE_NAME);
59 #endif
60     /* Call components board initial (use INIT_BOARD_EXPORT()) */
61 #ifdef RT_USING_COMPONENTS_INIT
62     rt_components_board_init();
63 #endif
64 }
65