109 lines
3.7 KiB
C
109 lines
3.7 KiB
C
/*
|
||
* Copyright : (C) 2022 Phytium Information Technology, Inc.
|
||
* All Rights Reserved.
|
||
*
|
||
* This program is OPEN SOURCE software: you can redistribute it and/or modify it
|
||
* under the terms of the Phytium Public License as published by the Phytium Technology Co.,Ltd,
|
||
* either version 1.0 of the License, or (at your option) any later version.
|
||
*
|
||
* This program is distributed in the hope that it will be useful,but WITHOUT ANY WARRANTY;
|
||
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
||
* See the Phytium Public License for more details.
|
||
*
|
||
*
|
||
* FilePath: fnand_bbm.h
|
||
* Date: 2022-02-10 14:53:42
|
||
* LastEditTime: 2022-02-18 08:56:17
|
||
* Description: This file implements the Bad Block Management (BBM) functionality.
|
||
*
|
||
* Modify History:
|
||
* Ver Who Date Changes
|
||
* ----- ------ -------- --------------------------------------
|
||
* 1.0 huanghe 2022/05/10 first release
|
||
*/
|
||
|
||
|
||
#ifndef FNAND_BBM_H
|
||
#define FNAND_BBM_H
|
||
|
||
#include "ftypes.h"
|
||
#include "fnand.h"
|
||
|
||
|
||
#ifdef __cplusplus
|
||
extern "C"
|
||
{
|
||
#endif
|
||
|
||
/************************** Constant Definitions *****************************/
|
||
/*
|
||
* Block definitions for RAM based Bad Block Table (BBT)
|
||
*/
|
||
#define FNAND_BLOCK_GOOD 0x0 /* Block is good */
|
||
#define FNAND_BLOCK_BAD 0x1 /* Block is bad */
|
||
#define FNAND_BLOCK_RESERVED 0x2 /* Reserved block */
|
||
#define FNAND_BLOCK_FACTORY_BAD 0x3 /* Factory marked bad block */
|
||
|
||
/*
|
||
* Block definitions for FLASH based Bad Block Table (BBT)
|
||
*/
|
||
#define FNAND_FLASH_BLOCK_GOOD 0x3 /* Block is good */
|
||
#define FNAND_FLASH_BLOCK_BAD 0x2 /* Block is bad */
|
||
#define FNAND_FLASH_BLOCK_RESERVED 0x1 /* Reserved block */
|
||
#define FNAND_FLASH_BLOCK_FACTORY_BAD 0x0 /* Factory marked bad block */
|
||
|
||
#define FNAND_BBT_SCAN_2ND_PAGE 0x00000001 /* Scan the \
|
||
second page \
|
||
for bad block \
|
||
information \
|
||
*/
|
||
#define FNAND_BBT_DESC_PAGE_OFFSET 0 /* Page offset of Bad \
|
||
Block Table Desc */
|
||
#define FNAND_BBT_DESC_SIG_OFFSET 8 /* Bad Block Table \
|
||
signature offset */
|
||
#define FNAND_BBT_DESC_VER_OFFSET 12 /* Bad block Table \
|
||
version offset */
|
||
#define FNAND_BBT_DESC_SIG_LEN 4 /* Bad block Table \
|
||
signature length */
|
||
#define FNAND_BBT_DESC_MAX_BLOCKS 4 /* Bad block Table \
|
||
max blocks */
|
||
|
||
#define FNAND_BBT_BLOCK_SHIFT 2 /* Block shift value \
|
||
for a block in BBT */
|
||
#define FNAND_BBT_ENTRY_NUM_BLOCKS 4 /* Num of blocks in \
|
||
one BBT entry */
|
||
#define FNAND_BB_PATTERN_OFFSET_SMALL_PAGE 5 /* Bad block pattern \
|
||
offset in a page */
|
||
#define FNAND_BB_PATTERN_LENGTH_SMALL_PAGE 1 /* Bad block pattern \
|
||
length */
|
||
#define FNAND_BB_PATTERN_OFFSET_LARGE_PAGE 0 /* Bad block pattern \
|
||
offset in a large \
|
||
page */
|
||
#define FNAND_BB_PATTERN_LENGTH_LARGE_PAGE 2 /* Bad block pattern \
|
||
length */
|
||
#define FNAND_BB_PATTERN 0xFF /* Bad block pattern \
|
||
to search in a page \
|
||
*/
|
||
#define FNAND_BLOCK_TYPE_MASK 0x03 /* Block type mask */
|
||
#define FNAND_BLOCK_SHIFT_MASK 0x06 /* Block shift mask \
|
||
for a Bad Block Table \
|
||
entry byte */
|
||
|
||
/**************************** Type Definitions *******************************/
|
||
|
||
/***************** Macros (Inline Functions) Definitions *********************/
|
||
|
||
/****************************************************************************/
|
||
|
||
#define FNAND_BBTBLOCKSHIFT(block) \
|
||
((block * 2) & FNAND_BLOCK_SHIFT_MASK)
|
||
|
||
|
||
|
||
|
||
#ifdef __cplusplus
|
||
}
|
||
#endif
|
||
|
||
#endif
|