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

/*
 * 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