83 lines
3.2 KiB
C
83 lines
3.2 KiB
C
/*
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* drivers/block/sun4i_nand/nfd/mbr.h
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*
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* (C) Copyright 2007-2012
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* Allwinner Technology Co., Ltd. <www.allwinnertech.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#ifndef __MBR_H__
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#define __MBR_H__
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#include "types.h"
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#define MBR_MAGIC "softw411"
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#define MBR_VERSION 0x200
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#define nand_part nand_part_a64
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#define checkmbrs checkmbrs_a64
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#define MAX_PART_COUNT 120 //max part count
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#define MBR_COPY_NUM 4 //mbr backup count
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#define MBR_START_ADDRESS (20*1024*1024) //mbr start address
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#define MBR_SIZE (1024*16) //mbr size
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#define MBR_RESERVED (MBR_SIZE - 32 - (MAX_PART_COUNT * 128)) //mbr reserved space
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// extern struct __NandDriverGlobal_t NandDriverInfo;
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// extern struct __NandStorageInfo_t NandStorageInfo;
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#define DiskSize (SECTOR_CNT_OF_SINGLE_PAGE * PAGE_CNT_OF_PHY_BLK * BLOCK_CNT_OF_DIE * \
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DIE_CNT_OF_CHIP * NandStorageInfo.ChipCnt / 1024 * DATA_BLK_CNT_OF_ZONE)
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struct nand_disk{
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unsigned long size;
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unsigned long offset;
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unsigned char type;
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};
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/* part info */
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typedef struct nand_tag_PARTITION{
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unsigned int addrhi; //起始地址, 以扇区为单位
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unsigned int addrlo; //
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unsigned int lenhi; //长度
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unsigned int lenlo; //
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unsigned char classname[16]; //次设备名
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unsigned char name[16]; //主设备名
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unsigned int user_type; //用户类型
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unsigned int keydata; //关键数据，要求量产不丢失
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unsigned int ro; //读写属性
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unsigned char res[68]; //保留数据，匹配分区信息128字节
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}__attribute__ ((packed))PARTITION;
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/* mbr info */
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typedef struct nand_tag_MBR{
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unsigned int crc32; // crc 1k - 4
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unsigned int version; // 版本信息， 0x00000100
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unsigned char magic[8]; //"softw411"
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unsigned int copy; //分数
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unsigned int index; //第几个MBR备份
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unsigned int PartCount; //分区个数
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unsigned int stamp[1]; //对齐
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PARTITION array[MAX_PART_COUNT]; //
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unsigned char res[MBR_RESERVED];
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}__attribute__ ((packed)) MBR;
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int mbr2disks(struct nand_disk* disk_array);
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#endif //__MBR_H__
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