107 lines
4.0 KiB
C
107 lines
4.0 KiB
C
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/*
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* Copyright : (C) 2022 Phytium Information Technology, Inc.
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* All Rights Reserved.
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*
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* This program is OPEN SOURCE software: you can redistribute it and/or modify it
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* under the terms of the Phytium Public License as published by the Phytium Technology Co.,Ltd,
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* either version 1.0 of 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,but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the Phytium Public License for more details.
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*
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*
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* FilePath: fnand_bbm.h
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* Date: 2022-02-10 14:53:42
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* LastEditTime: 2022-02-18 08:56:17
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* Description: This files is for
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*
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* Modify History:
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* Ver Who Date Changes
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* ----- ------ -------- --------------------------------------
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*/
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#ifndef DRIVERS_NAND_FNAND_BBM_H
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#define DRIVERS_NAND_FNAND_BBM_H
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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#include "ftypes.h"
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#include "fnand.h"
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/************************** Constant Definitions *****************************/
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/*
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* Block definitions for RAM based Bad Block Table (BBT)
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*/
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#define FNAND_BLOCK_GOOD 0x0 /* Block is good */
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#define FNAND_BLOCK_BAD 0x1 /* Block is bad */
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#define FNAND_BLOCK_RESERVED 0x2 /* Reserved block */
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#define FNAND_BLOCK_FACTORY_BAD 0x3 /* Factory marked bad block */
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/*
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* Block definitions for FLASH based Bad Block Table (BBT)
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*/
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#define FNAND_FLASH_BLOCK_GOOD 0x3 /* Block is good */
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#define FNAND_FLASH_BLOCK_BAD 0x2 /* Block is bad */
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#define FNAND_FLASH_BLOCK_RESERVED 0x1 /* Reserved block */
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#define FNAND_FLASH_BLOCK_FACTORY_BAD 0x0 /* Factory marked bad block */
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#define FNAND_BBT_SCAN_2ND_PAGE 0x00000001 /* Scan the \
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second page \
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for bad block \
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information \
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*/
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#define FNAND_BBT_DESC_PAGE_OFFSET 0 /* Page offset of Bad \
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Block Table Desc */
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#define FNAND_BBT_DESC_SIG_OFFSET 8 /* Bad Block Table \
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signature offset */
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#define FNAND_BBT_DESC_VER_OFFSET 12 /* Bad block Table \
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version offset */
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#define FNAND_BBT_DESC_SIG_LEN 4 /* Bad block Table \
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signature length */
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#define FNAND_BBT_DESC_MAX_BLOCKS 4 /* Bad block Table \
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max blocks */
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#define FNAND_BBT_BLOCK_SHIFT 2 /* Block shift value \
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for a block in BBT */
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#define FNAND_BBT_ENTRY_NUM_BLOCKS 4 /* Num of blocks in \
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one BBT entry */
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#define FNAND_BB_PATTERN_OFFSET_SMALL_PAGE 5 /* Bad block pattern \
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offset in a page */
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#define FNAND_BB_PATTERN_LENGTH_SMALL_PAGE 1 /* Bad block pattern \
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length */
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#define FNAND_BB_PATTERN_OFFSET_LARGE_PAGE 0 /* Bad block pattern \
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offset in a large \
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page */
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#define FNAND_BB_PATTERN_LENGTH_LARGE_PAGE 2 /* Bad block pattern \
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length */
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#define FNAND_BB_PATTERN 0xFF /* Bad block pattern \
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to search in a page \
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*/
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#define FNAND_BLOCK_TYPE_MASK 0x03 /* Block type mask */
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#define FNAND_BLOCK_SHIFT_MASK 0x06 /* Block shift mask \
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for a Bad Block Table \
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entry byte */
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/**************************** Type Definitions *******************************/
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/***************** Macros (Inline Functions) Definitions *********************/
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/****************************************************************************/
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#define FNAND_BBTBLOCKSHIFT(block) \
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((block * 2) & FNAND_BLOCK_SHIFT_MASK)
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#ifdef __cplusplus
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}
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#endif
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#endif
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