Rolling in Ians and other changes

[yaffs2.git] / Kconfig

diff --git a/Kconfig b/Kconfig
index 6bd1a6b7f5f0bf59a5658e40d7bee1317a65539a..f55b3c5107bf35a9edd4caeb800007e35af75c73 100644 (file)
--- a/Kconfig
+++ b/Kconfig
@@ -31,9 +31,25 @@ config YAFFS_YAFFS1
 
          If unsure, say Y.
 
+config YAFFS_9BYTE_TAGS
+       bool "Use older-style on-NAND data format with pageStatus byte"
+       depends on YAFFS_YAFFS1
+       default n
+       help
+
+         Older-style on-NAND data format has a "pageStatus" byte to record
+         chunk/page state.  This byte is zero when the page is discarded.
+         Choose this option if you have existing on-NAND data using 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.
+
+         If unsure, say N.
+
 config YAFFS_DOES_ECC
        bool "Lets Yaffs do its own ECC"
-       depends on YAFFS_FS && YAFFS_YAFFS1
+       depends on YAFFS_FS && YAFFS_YAFFS1 && !YAFFS_9BYTE_TAGS
        default n
        help
          This enables Yaffs to use its own ECC functions instead of using
@@ -43,7 +59,7 @@ config YAFFS_DOES_ECC
 
 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
+       depends on YAFFS_FS && YAFFS_DOES_ECC && !YAFFS_9BYTE_TAGS
        default n
        help
          This makes yaffs_ecc.c use the same ecc byte order as Steven