X-Git-Url: http://www.aleph1.co.uk/gitweb/?p=yaffs2.git;a=blobdiff_plain;f=moduleconfig.h;h=99c9f6a66ef3e4e2b475e82941a0e1ff3e942d52;hp=b51a150108811c611f11b3fd6976ca963897ba11;hb=1ffa02489a63129109b66774681c94fe0a8a946a;hpb=6f1de4473200f31d1ca1cf4672baf7afcdec2db0 diff --git a/moduleconfig.h b/moduleconfig.h index b51a150..99c9f6a 100644 --- a/moduleconfig.h +++ b/moduleconfig.h @@ -1,10 +1,10 @@ /* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. + * 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 + * Created by Martin Fouts * * 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 @@ -27,12 +27,16 @@ /* Default: Not selected */ /* Meaning: Yaffs does its own ECC, rather than using MTD ECC */ -//#define CONFIG_YAFFS_DOES_ECC +/* #define CONFIG_YAFFS_DOES_ECC */ + +/* Default: Selected */ +/* Meaning: Yaffs does its own ECC on tags for packed tags rather than use mtd */ +#define CONFIG_YAFFS_DOES_TAGS_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 +/* #define CONFIG_YAFFS_ECC_WRONG_ORDER */ /* Default: Selected */ /* Meaning: Disables testing whether chunks are erased before writing to them*/ @@ -44,7 +48,21 @@ /* Default: 10 */ /* Meaning: set the count of blocks to reserve for checkpointing */ -#define YAFFS_CHECKPOINT_RESERVED_BLOCKS 10 +#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 in yaffs_mtdif1.c. +*/ +/* Default: Not selected */ +/* Meaning: Use older-style on-NAND data format with pageStatus byte */ +/* #define CONFIG_YAFFS_9BYTE_TAGS */ #endif /* YAFFS_OUT_OF_TREE */