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authorJoern Engel <joern@wh.fh-wedel.de>2006-05-22 23:18:29 +0200
committerJoern Engel <joern@wh.fh-wedel.de>2006-05-22 23:18:29 +0200
commit5fa433942ba4e399f7e28764c9db4ade89e91d40 (patch)
tree29a2691729645bf27fd2d7d8d61a5c720c6569c1 /include/mtd/mtd-abi.h
parent[MTD] Merge STMicro NOR_ECC code with Intel Sibley code (diff)
downloadlinux-dev-5fa433942ba4e399f7e28764c9db4ade89e91d40.tar.xz
linux-dev-5fa433942ba4e399f7e28764c9db4ade89e91d40.zip
[MTD] Introduce MTD_BIT_WRITEABLE
o Add a flag MTD_BIT_WRITEABLE for devices that allow single bits to be cleared. o Replace MTD_PROGRAM_REGIONS with a cleared MTD_BIT_WRITEABLE flag for STMicro and Intel Sibley flashes with internal ECC. Those flashes disallow clearing of single bits, unlike regular NOR flashes, so the new flag models their behaviour better. o Remove MTD_ECC. After the STMicro/Sibley merge, this flag is only set and never checked. Signed-off-by: Joern Engel <joern@wh.fh-wedel.de>
Diffstat (limited to 'include/mtd/mtd-abi.h')
-rw-r--r--include/mtd/mtd-abi.h7
1 files changed, 3 insertions, 4 deletions
diff --git a/include/mtd/mtd-abi.h b/include/mtd/mtd-abi.h
index 520a3b483100..1e09e4c8f485 100644
--- a/include/mtd/mtd-abi.h
+++ b/include/mtd/mtd-abi.h
@@ -30,14 +30,13 @@ struct mtd_oob_buf {
#define MTD_NANDFLASH 4
#define MTD_DATAFLASH 6
-#define MTD_ECC 128 // Device capable of automatic ECC
-#define MTD_PROGRAM_REGIONS 512 // Configurable Programming Regions
#define MTD_WRITEABLE 0x400 /* Device is writeable */
+#define MTD_BIT_WRITEABLE 0x800 /* Single bits can be flipped */
// Some common devices / combinations of capabilities
#define MTD_CAP_ROM 0
-#define MTD_CAP_RAM (MTD_WRITEABLE)
-#define MTD_CAP_NORFLASH (MTD_WRITEABLE)
+#define MTD_CAP_RAM (MTD_WRITEABLE | MTD_BIT_WRITEABLE)
+#define MTD_CAP_NORFLASH (MTD_WRITEABLE | MTD_BIT_WRITEABLE)
#define MTD_CAP_NANDFLASH (MTD_WRITEABLE)