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>
There's some problem with write oob in serveral platform.
So we write oob with oobsize aligned (16bytes) instead of 3 bytes (from {2,
3})
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Some free byte positions at onenand_oob_64 were wrong. This was also
reported by Christian Lehne. 3 byte slots are at 2+16*i and 2 byte
slots at 14+16*i.
Signed-off-by: Jarkko Lavinen <jarkko.lavinen@nokia.com>
This (and the three subsequent patches) is working well on OMAP H4 with
2.6.15-rc4 kernel and passes the LTP fs test.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
drivers/mtd/onenand/onenand_base.c: In function `onenand_wait':
drivers/mtd/onenand/onenand_base.c:293: error: `jiffies' undeclared (first use in this function)
drivers/mtd/onenand/onenand_base.c:293: error: (Each undeclared identifier is reported only once
drivers/mtd/onenand/onenand_base.c:293: error: for each function it appears in.)
drivers/mtd/onenand/onenand_base.c:293: error: implicit declaration of function `msecs_to_jiffies'
drivers/mtd/onenand/onenand_base.c:294: error: implicit declaration of function `time_before'
drivers/mtd/onenand/onenand_base.c:301: error: implicit declaration of function `cond_resched'
drivers/mtd/onenand/onenand_base.c: In function `onenand_get_device':
drivers/mtd/onenand/onenand_base.c:522: error: implicit declaration of function `set_current_state'
drivers/mtd/onenand/onenand_base.c:522: error: `TASK_UNINTERRUPTIBLE' undeclared (first use in this function)
drivers/mtd/onenand/onenand_base.c:525: error: implicit declaration of function `schedule'
drivers/mtd/onenand/onenand_base.c: In function `onenand_release_device':
drivers/mtd/onenand/onenand_base.c:545: error: `TASK_UNINTERRUPTIBLE' undeclared (first use in this function)
drivers/mtd/onenand/onenand_base.c:545: error: `TASK_INTERRUPTIBLE' undeclared (first use in this function)
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Add density mask for better support of DDP chips.
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Add OneNAND Sync. Burst Read support
Tested with OMAP platform
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
OneNAND is a new flash technology from Samsung with integrated SRAM
buffers and logic interface.
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Kyungmin Park