mtd: sync bbm.h with Linux Kernel
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Sascha Hauer
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8dbf2821e9
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bdfd6a629c
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@ -4,16 +4,33 @@
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* NAND family Bad Block Management (BBM) header file
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* - Bad Block Table (BBT) implementation
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*
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* Copyright (c) 2005 Samsung Electronics
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* Copyright © 2005 Samsung Electronics
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* Kyungmin Park <kyungmin.park@samsung.com>
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*
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* Copyright (c) 2000-2005
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* Copyright © 2000-2005
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* Thomas Gleixner <tglx@linuxtronix.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#ifndef __LINUX_MTD_BBM_H
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#define __LINUX_MTD_BBM_H
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/* The maximum number of NAND chips in an array */
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#define NAND_MAX_CHIPS 8
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/**
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* struct nand_bbt_descr - bad block table descriptor
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* @options: options for this descriptor
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@ -38,15 +55,15 @@
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* of the first block.
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*/
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struct nand_bbt_descr {
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int options;
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int pages[NAND_MAX_CHIPS];
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int offs;
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int veroffs;
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uint8_t version[NAND_MAX_CHIPS];
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int len;
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int maxblocks;
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int reserved_block_code;
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uint8_t *pattern;
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int options;
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int pages[NAND_MAX_CHIPS];
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int offs;
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int veroffs;
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uint8_t version[NAND_MAX_CHIPS];
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int len;
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int maxblocks;
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int reserved_block_code;
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uint8_t *pattern;
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};
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/* Options for the bad block table descriptors */
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@ -58,27 +75,32 @@ struct nand_bbt_descr {
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#define NAND_BBT_4BIT 0x00000004
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#define NAND_BBT_8BIT 0x00000008
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/* The bad block table is in the last good block of the device */
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#define NAND_BBT_LASTBLOCK 0x00000010
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#define NAND_BBT_LASTBLOCK 0x00000010
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/* The bbt is at the given page, else we must scan for the bbt */
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#define NAND_BBT_ABSPAGE 0x00000020
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/* The bbt is at the given page, else we must scan for the bbt */
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#define NAND_BBT_SEARCH 0x00000040
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/* bbt is stored per chip on multichip devices */
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#define NAND_BBT_PERCHIP 0x00000080
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/* bbt has a version counter at offset veroffs */
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#define NAND_BBT_VERSION 0x00000100
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/* Create a bbt if none axists */
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/* Create a bbt if none exists */
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#define NAND_BBT_CREATE 0x00000200
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/*
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* Create an empty BBT with no vendor information. Vendor's information may be
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* unavailable, for example, if the NAND controller has a different data and OOB
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* layout or if this information is already purged. Must be used in conjunction
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* with NAND_BBT_CREATE.
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*/
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#define NAND_BBT_CREATE_EMPTY 0x00000400
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/* Search good / bad pattern through all pages of a block */
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#define NAND_BBT_SCANALLPAGES 0x00000400
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#define NAND_BBT_SCANALLPAGES 0x00000800
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/* Scan block empty during good / bad block scan */
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#define NAND_BBT_SCANEMPTY 0x00000800
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#define NAND_BBT_SCANEMPTY 0x00001000
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/* Write bbt if neccecary */
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#define NAND_BBT_WRITE 0x00001000
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#define NAND_BBT_WRITE 0x00002000
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/* Read and write back block contents when writing bbt */
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#define NAND_BBT_SAVECONTENT 0x00002000
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#define NAND_BBT_SAVECONTENT 0x00004000
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/* Search good / bad pattern on the first and the second page */
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#define NAND_BBT_SCAN2NDPAGE 0x00004000
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#define NAND_BBT_SCAN2NDPAGE 0x00008000
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/* Search good / bad pattern on the last page of the eraseblock */
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#define NAND_BBT_SCANLASTPAGE 0x00010000
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@ -86,9 +108,26 @@ struct nand_bbt_descr {
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* Use a flash based bad block table. By default, OOB identifier is saved in
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* OOB area. This option is passed to the default bad block table function.
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*/
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#define NAND_BBT_USE_FLASH 0x00020000
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#define NAND_BBT_USE_FLASH 0x00020000
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/*
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* Do not store flash based bad block table marker in the OOB area; store it
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* in-band.
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*/
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#define NAND_BBT_NO_OOB 0x00040000
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/*
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* Do not write new bad block markers to OOB; useful, e.g., when ECC covers
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* entire spare area. Must be used with NAND_BBT_USE_FLASH.
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*/
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#define NAND_BBT_NO_OOB_BBM 0x00080000
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/*
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* Flag set by nand_create_default_bbt_descr(), marking that the nand_bbt_descr
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* was allocated dynamicaly and must be freed in nand_release(). Has no meaning
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* in nand_chip.bbt_options.
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*/
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#define NAND_BBT_DYNAMICSTRUCT 0x80000000
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/* The maximum number of blocks to scan for a bbt */
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#define NAND_BBT_SCAN_MAXBLOCKS 4
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#endif /* __LINUX_MTD_BBM_H */
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#endif /* __LINUX_MTD_BBM_H */
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