rt-thread-official/bsp/qemu-vexpress-a9/drivers/board.h

44 lines
951 B
C

/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2013-07-06 Bernard the first version
*/
#ifndef __BOARD_H__
#define __BOARD_H__
#include <rtconfig.h>
#include <realview.h>
#include "vexpress_a9.h"
#include "mmu.h"
#ifdef RT_USING_LWP
#include "ioremap.h"
#endif
#if defined(__CC_ARM)
extern int Image$$RW_IRAM1$$ZI$$Limit;
#define HEAP_BEGIN ((void*)&Image$$RW_IRAM1$$ZI$$Limit)
#elif defined(__GNUC__)
extern int __bss_end;
#define HEAP_BEGIN ((void*)&__bss_end)
#endif
#ifdef RT_USING_USERSPACE
#define HEAP_END (void*)(KERNEL_VADDR_START + 16 * 1024 * 1024)
#define PAGE_START HEAP_END
#define PAGE_END (void*)(KERNEL_VADDR_START + 128 * 1024 * 1024)
#else
#define HEAP_END (void*)(0x60000000 + 64 * 1024 * 1024)
#endif
void rt_hw_board_init(void);
extern rt_mmu_info mmu_info;
#endif