133 lines
4.4 KiB
C
Executable File
133 lines
4.4 KiB
C
Executable File
#ifndef __BMT_H__
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#define __BMT_H__
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#if defined(TCSUPPORT_CPU_EN7512)||defined(TCSUPPORT_CPU_EN7521)
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#include <spi_nand_flash.h>
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#include <asm/tc3162.h>
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#define bool u8
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#define true 1
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#define false 0
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#else
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#if defined(TCSUPPORT_CPU_MT7510)||defined(TCSUPPORT_CPU_MT7520)
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#include <asm/tc3162.h>
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#include <mt7510_nandflash.h>
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#else
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#include "nandflash.h"
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#define bool u8
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#define true 1
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#define false 0
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#endif
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#endif
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#define MAX_RAW_BAD_BLOCK_SIZE (1000)
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#define BBT_SIGNATURE_OFFSET (0)
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#define BBT_VERSION 1
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#define BAD_BLOCK_RAW (0)
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#define BMT_BADBLOCK_GENERATE_LATER (1)
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#if defined(TCSUPPORT_CPU_EN7512)||defined(TCSUPPORT_CPU_EN7521)
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#define MAX_BMT_SIZE (500)
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#define BMT_SIZE_FOR_RESERVE_AREA (0x80)
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#else
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#define MAX_BMT_SIZE (0x100) //(500)
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#endif
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#define BMT_VERSION (1) // initial version
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#define MAIN_SIGNATURE_OFFSET (0)
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#define OOB_INDEX_OFFSET (2)
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#define OOB_INDEX_SIZE (2)
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#ifdef TCSUPPORT_NAND_BMT
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//#define TCSUPPORT_NAND_COPY_BOB
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#endif
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#if 0
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#define MSG(args...) prom_printf(args)
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#else
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#define MSG(args...) do{}while(0)
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#endif
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typedef struct _bmt_entry_
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{
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u16 bad_index; // bad block index
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u16 mapped_index; // mapping block index in the replace pool
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} bmt_entry;
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typedef enum
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{
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UPDATE_ERASE_FAIL,
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UPDATE_WRITE_FAIL,
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UPDATE_UNMAPPED_BLOCK,
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UPDATE_REASON_COUNT,
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} update_reason_t;
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typedef struct {
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bmt_entry table[MAX_BMT_SIZE];
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u8 version;
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u8 mapped_count; // mapped block count in pool
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u8 bad_count; // bad block count in pool. Not used in V1
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}bmt_struct;
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typedef struct {
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u16 badblock_table[MAX_RAW_BAD_BLOCK_SIZE]; //store bad block raw
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u8 version;
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u8 badblock_count;
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u8 reserved[2];
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}init_bbt_struct;
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/***************************************************************
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* *
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* Interface BMT need to use *
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* *
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***************************************************************/
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#if defined(TCSUPPORT_CPU_EN7512)||defined(TCSUPPORT_CPU_EN7521)
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extern int en7512_nand_exec_read_page();
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extern int en7512_nand_check_block_bad();
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extern int en7512_nand_erase();
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extern int en7512_nand_mark_badblock();
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extern int en7512_nand_exec_write_page();
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#else
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#if defined(TCSUPPORT_CPU_MT7510)||defined(TCSUPPORT_CPU_MT7520)
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extern int mt6573_nand_exec_read_page(struct mt6573_nand_host_hw *hw, u32 u4RowAddr, u32 u4PageSize, u8* pPageBuf, u8* pFDMBuf);
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extern int mt6573_nand_block_bad_hw(flashdev_info* flashdev, loff_t ofs, unsigned long bmt_block);
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extern int mt6573_nand_erase_hw( int page);
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extern int mt6573_nand_block_markbad_hw(flashdev_info* flashdev, loff_t offset, unsigned long bmt_block);
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extern int mt6573_nand_exec_write_page(struct mt6573_nand_host_hw *hw, u32 u4RowAddr, u32 u4PageSize, u8* pPageBuf, u8* pFDMBuf);
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#else
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extern int mt6573_nand_exec_read_page(struct ra_nand_chip *ra, int page, u32 page_size, u8 *dat, u8 *oob);
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extern int mt6573_nand_block_bad_hw(struct ra_nand_chip *ra, unsigned long ofs, unsigned long bmt_block);
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extern int mt6573_nand_erase_hw(struct ra_nand_chip *ra, unsigned long page);
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extern int mt6573_nand_block_markbad_hw(struct ra_nand_chip *ra, unsigned long ofs, unsigned long bmt_block);
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extern int mt6573_nand_exec_write_page(struct ra_nand_chip *ra, int page, u32 page_size, u8 *dat, u8 *oob);
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#endif
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#endif
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/********************************************
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* *
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* Interface for preloader/uboot/kernel *
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* *
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********************************************/
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extern void set_bad_index_to_oob(u8 *oob, u16 index);
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extern bmt_struct *init_bmt(struct ra_nand_chip *ra, int size);
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extern init_bbt_struct* start_init_bbt(void);
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extern int write_bbt_or_bmt_to_flash(void);
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extern int create_badblock_table_by_bbt(void);
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extern bool update_bmt(u32 offset, update_reason_t reason, u8 *dat, u8 *oob);
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extern int get_mapping_block_index_by_bmt(int index);
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extern int get_mapping_block_index_by_bbt(int index);
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extern int get_mapping_block_index(int index, u16 *phy_block_bbt);
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extern int block_is_in_bmt_region(int index);
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#endif
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#ifdef TCSUPPORT_NAND_COPY_BOB
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extern int CopyFlashData(void);
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extern int check_BMT_reservearea_empty_or_not(unsigned long index);
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#endif
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