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authorDavid Brownell <dbrownell@users.sourceforge.net>2008-07-30 12:35:05 -0700
committerDavid Woodhouse <David.Woodhouse@intel.com>2008-08-01 21:47:47 +0100
commit34a82443b79dcda4304b229d555586296da40c16 (patch)
treee375cf274b6c2eb1f41c81db3a864facfb7cce46 /drivers/mtd/chips
parent623fa579e61f250c1913c70257ef3a753820bb68 (diff)
[MTD] dataflash OTP support
Now that we can tell when we have one of the newer DataFlash chips, optionally expose the 128 bytes of OTP memory they provide. Tested on at45db642 revision B and D chips. Switch mtdchar over to a generic HAVE_MTD_OTP flag instead of adding another #ifdef for each type of chip whose driver has OTP support. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: Bryan Wu <cooloney@kernel.org> Cc: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/mtd/chips')
-rw-r--r--drivers/mtd/chips/Kconfig1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/mtd/chips/Kconfig b/drivers/mtd/chips/Kconfig
index 479d32b57a1e..4c35e5d77f95 100644
--- a/drivers/mtd/chips/Kconfig
+++ b/drivers/mtd/chips/Kconfig
@@ -154,6 +154,7 @@ config MTD_CFI_I8
config MTD_OTP
bool "Protection Registers aka one-time programmable (OTP) bits"
depends on MTD_CFI_ADV_OPTIONS
+ select HAVE_MTD_OTP
default n
help
This enables support for reading, writing and locking so called