/* * YAFFS: Yet another Flash File System . A NAND-flash specific file system. * * Copyright (C) 2002-2007 Aleph One Ltd. * for Toby Churchill Ltd and Brightstar Engineering * * Created by Martin Fouts <Martin.Fouts@palmsource.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License version 2.1 as * published by the Free Software Foundation. * * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. */ #ifndef __YAFFS_CONFIG_H__ #define __YAFFS_CONFIG_H__ #ifdef YAFFS_OUT_OF_TREE /* DO NOT UNSET THESE THREE. YAFFS2 will not compile if you do. */ #define CONFIG_YAFFS_FS #define CONFIG_YAFFS_YAFFS1 #define CONFIG_YAFFS_YAFFS2 /* These options are independent of each other. Select those that matter. */ /* Default: Not selected */ /* Meaning: Yaffs does its own ECC, rather than using MTD ECC */ //#define CONFIG_YAFFS_DOES_ECC /* Default: Not selected */ /* Meaning: ECC byte order is 'wrong'. Only meaningful if */ /* CONFIG_YAFFS_DOES_ECC is set */ //#define CONFIG_YAFFS_ECC_WRONG_ORDER /* Default: Selected */ /* Meaning: Disables testing whether chunks are erased before writing to them*/ #define CONFIG_YAFFS_DISABLE_CHUNK_ERASED_CHECK /* Default: Selected */ /* Meaning: Cache short names, taking more RAM, but faster look-ups */ #define CONFIG_YAFFS_SHORT_NAMES_IN_RAM /* Default: 10 */ /* Meaning: set the count of blocks to reserve for checkpointing */ #define CONFIG_YAFFS_CHECKPOINT_RESERVED_BLOCKS 10 /* Older-style on-NAND data format has a "pageStatus" byte to record chunk/page state. This byte is zeroed when the page is discarded. Choose this option if you have existing on-NAND data in this format that you need to continue to support. New data written also uses the older-style format. Note: Use of this option generally requires that MTD's oob layout be adjusted to use the older-style format. See notes on tags formats and MTD versions. */ /* Default: Not selected */ /* Meaning: Use older-style on-NAND data format with pageStatus byte */ #define CONFIG_YAFFS_9BYTE_TAGS #endif /* YAFFS_OUT_OF_TREE */ #endif /* __YAFFS_CONFIG_H__ */