OneNAND: One-Time Programmable (OTP) support

One Block of the NAND Flash Array memory is reserved as
a One-Time Programmable Block memory area.
Also, 1st Block of NAND Flash Array can be used as OTP.

The OTP block can be read, programmed and locked using the same
operations as any other NAND Flash Array memory block.
OTP block cannot be erased.

OTP block is fully-guaranteed to be a valid block.

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>

1 files changed, 14 insertions, 0 deletions

diff --git a/drivers/mtd/onenand/Kconfig b/drivers/mtd/onenand/Kconfig
index 126ff6bf63d5..5930a03736d7 100644
--- a/drivers/mtd/onenand/Kconfig
+++ b/drivers/mtd/onenand/Kconfig
@@ -29,6 +29,20 @@ config MTD_ONENAND_GENERIC
         help
           Support for OneNAND flash via platform device driver.
 
+config MTD_ONENAND_OTP
+        bool "OneNAND OTP Support"
+        depends on MTD_ONENAND
+        help
+          One Block of the NAND Flash Array memory is reserved as
+          a One-Time Programmable Block memory area.
+          Also, 1st Block of NAND Flash Array can be used as OTP.
+
+          The OTP block can be read, programmed and locked using the same
+          operations as any other NAND Flash Array memory block.
+          OTP block cannot be erased.
+
+          OTP block is fully-guaranteed to be a valid block.
+
 config MTD_ONENAND_SYNC_READ
         bool "OneNAND Sync. Burst Read Support"
         depends on ARCH_OMAP