rt-thread-official/bsp/raspberry-pi/raspi4-64/drivers/board.h

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/*
* Copyright (c) 2006-2020, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2020-04-16 bigmagic first version
*/
#ifndef BOARD_H__
#define BOARD_H__
#include <stdint.h>
#include "raspi4.h"
#include "mmu.h"
#include "ioremap.h"
extern int __bss_end;
#define HEAP_BEGIN ((void*)&__bss_end)
#ifdef RT_USING_SMART
#define HEAP_END ((size_t)KERNEL_VADDR_START + 32 * 1024 * 1024)
#define PAGE_START HEAP_END
#define PAGE_END ((size_t)KERNEL_VADDR_START + 128 * 1024 * 1024)
#else
#define KERNEL_VADDR_START 0x0
#define HEAP_END (KERNEL_VADDR_START + 64 * 1024 * 1024)
#define PAGE_START HEAP_END
#define PAGE_END ((size_t)PAGE_START + 64 * 1024 * 1024)
#endif
void rt_hw_board_init(void);
#endif