X-Git-Url: http://www.aleph1.co.uk/gitweb/?p=yaffs2.git;a=blobdiff_plain;f=Kconfig;h=73e37a09e613bb5f68e68a16728991f595fc7bc1;hp=65958cfedb6f0474083a6bb1a34ed9f26788050e;hb=394fcf7b50181f9f4bde6748f1870de94c9e0732;hpb=c898fad8c0b581688b4ebd9d7952c909379d6df7

diff --git a/Kconfig b/Kconfig
index 65958cf..73e37a0 100644
--- a/Kconfig
+++ b/Kconfig
@@ -4,6 +4,9 @@
 
 config YAFFS_FS
 	tristate "YAFFS2 file system support"
+	default n
+	select YAFFS_YAFFS1
+	select YAFFS_YAFFS2
 	help
 	  YAFFS2, or Yet Another Flash Filing System, is a filing system
 	  optimised for NAND Flash chips.
@@ -19,38 +22,65 @@ config YAFFS_FS
 config YAFFS_YAFFS1
 	bool "512 byte / page devices"
 	depends on YAFFS_FS
+	default y
 	help
 	  Enable YAFFS1 support -- yaffs for 512 byte / page devices
 
 	  If unsure, say Y.
 
+config YAFFS_DOES_ECC
+	bool "Lets Yaffs do its own ECC"
+	depends on YAFFS_FS && YAFFS_YAFFS1
+	default n
+	help
+	  This enables Yaffs to use its own ECC functions instead of using
+	  the ones from the generic MTD-NAND driver.
+
+	  If unsure, say N.
+
+config YAFFS_ECC_WRONG_ORDER
+	bool "Use the same ecc byte order as Steven Hill's nand_ecc.c"
+	depends on YAFFS_FS && YAFFS_DOES_ECC
+	default n
+	help
+	  This makes yaffs_ecc.c use the same ecc byte order as
+	  Steven Hill's nand_ecc.c. If not set, then you get the
+	  same ecc byte order as SmartMedia.
+
+	  If unsure, say N.
+
 config YAFFS_YAFFS2
 	bool "2048 byte (or larger) / page devices"
 	depends on YAFFS_FS
+	default y
 	help
 	  Enable YAFFS2 support -- yaffs for >= 2048 byte / page larger devices
 
 	  If unsure, say Y.
 
-config YAFFS_USE_NANDECC
-	bool "Use ECC functions of the generic MTD-NAND driver"
-	depends on YAFFS_FS
+config YAFFS_AUTO_YAFFS2
+	bool "Autoselect yaffs2 format"
+	depends on YAFFS_YAFFS2
 	default y
 	help
-	  This enables the ECC functions of the generic MTD-NAND driver.
-	  This will not work if you are using the old mtd.
-
-	  NB Use NAND ECC does not work at present with yaffsram.
+	  Without this, you need to explicitely use yaffs2 as the file
+	  system type. With this, you can say "yaffs" and yaffs or yaffs2
+          will be used depending on the device page size.
 
 	  If unsure, say Y.
 
-config YAFFS_ECC_WRONG_ORDER
-	bool "Use the same ecc byte order as Steven Hill's nand_ecc.c"
-	depends on YAFFS_FS && !YAFFS_USE_NANDECC
+config YAFFS_DISABLE_WIDE_TNODES
+	bool "Turn off wide tnodes"
+	depends on YAFFS_FS
+	default n
 	help
-	  This makes yaffs_ecc.c use the same ecc byte order as
-	  Steven Hill's nand_ecc.c. If not set, then you get the
-	  same ecc byte order as SmartMedia.
+	  Wide tnodes are only used for large NAND arrays (>=32MB for
+	  512-byte page devices and >=128MB for 2k page devices). They use 
+	  slightly more RAM but are faster since they eliminate chunk group
+	  searching.
+
+	  Setting this to 'y' will force tnode width to 16 bits and make
+	  large arrays slower.
 
 	  If unsure, say N.