Blackfin char driver for Blackfin on-chip OTP memory (v3)

initial char driver for otp memory
(only read supported atm ... needs real examples/docs for write support)

v2-v3:
 - fixup __initdata with __initconst, as we are heading for 2.6.26

Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Acked-by: Jiri Slaby <jirislaby@gmail.com>

1 files changed, 28 insertions, 0 deletions

diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index a87b89db08e9..2906ee7bd298 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -481,6 +481,34 @@ config BRIQ_PANEL
 
           It's safe to say N here.
 
+config BFIN_OTP
+        tristate "Blackfin On-Chip OTP Memory Support"
+        depends on BLACKFIN && (BF52x || BF54x)
+        default y
+        help
+          If you say Y here, you will get support for a character device
+          interface into the One Time Programmable memory pages that are
+          stored on the Blackfin processor.  This will not get you access
+          to the secure memory pages however.  You will need to write your
+          own secure code and reader for that.
+
+          To compile this driver as a module, choose M here: the module
+          will be called bfin-otp.
+
+          If unsure, it is safe to say Y.
+
+config BFIN_OTP_WRITE_ENABLE
+        bool "Enable writing support of OTP pages"
+        depends on BFIN_OTP
+        default n
+        help
+          If you say Y here, you will enable support for writing of the
+          OTP pages.  This is dangerous by nature as you can only program
+          the pages once, so only enable this option when you actually
+          need it so as to not inadvertently clobber data.
+
+          If unsure, say N.
+
 config PRINTER
         tristate "Parallel printer support"
         depends on PARPORT