1 /*
2  * Copyright (c) 2006-2020, RT-Thread Development Team
3  *
4  * SPDX-License-Identifier: Apache-2.0
5  *
6  * Change Logs:
7  * Date           Author         Notes
8  * 2020-04-16     bigmagic       first version
9  */
10 
11 #ifndef BOARD_H__
12 #define BOARD_H__
13 
14 #include <stdint.h>
15 #include "raspi4.h"
16 #include "mmu.h"
17 #include "ioremap.h"
18 
19 extern int __bss_end;
20 #define HEAP_BEGIN      ((void*)&__bss_end)
21 
22 #ifdef RT_USING_SMART
23 #define HEAP_END        ((size_t)KERNEL_VADDR_START + 32 * 1024 * 1024)
24 #define PAGE_START      HEAP_END
25 #define PAGE_END        ((size_t)KERNEL_VADDR_START + 128 * 1024 * 1024)
26 #else
27 #define KERNEL_VADDR_START 0x0
28 
29 #define HEAP_END        (KERNEL_VADDR_START + 32 * 1024 * 1024)
30 #define PAGE_START      HEAP_END
31 #define PAGE_END        ((size_t)PAGE_START + 128 * 1024 * 1024)
32 #endif
33 
34 void rt_hw_board_init(void);
35 
36 #endif
37