Add partition definitions for the new Sharp Zaurus models Spitz (SL-C3000),
Akita (SL-C1000) and Borzoi (SL-C3100)
Signed-off-by: NRichard Purdie <rpurdie@rpsys.net>
Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

This patch adds a new kernel debug feature: CONFIG_DETECT_SOFTLOCKUP.

When enabled then per-CPU watchdog threads are started, which try to run
once per second.  If they get delayed for more than 10 seconds then a
callback from the timer interrupt detects this condition and prints out a
warning message and a stack dump (once per lockup incident).  The feature
is otherwise non-intrusive, it doesnt try to unlock the box in any way, it
only gets the debug info out, automatically, and on all CPUs affected by
the lockup.
Signed-off-by: NIngo Molnar <mingo@elte.hu>
Signed-off-by: NNishanth Aravamudan <nacc@us.ibm.com>
Signed-Off-By: NMatthias Urlichs <smurf@smurf.noris.de>
Signed-off-by: NRichard Purdie <rpurdie@rpsys.net>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

The previous change to read a single byte from oob breaks the
bad block scan on 16 bit devices, when the byte is on an odd
address. Read the complete oob for now.
Remove the unused arguments from check_short_pattern()
Move the wait for ready function so it is only executed when
consecutive reads happen.
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

Fix OOPs if there was no platform set information passed
Signed-off-by: NBen Dooks <ben@simtec.co.uk>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

The drivers are unmaintained since long and reference include files
which are not available in the kernel. Original author is not longer
responsible and no new maintainer showed up within 3 month.
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

From: Domenico DI TULLIO <domenico.di-tullio@st.com>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

Fix error in timing generation, Tacls is only in the range 0..3

Add proper support for the s3c2440 NAND controller, which has now
been tested on several s3c2440 implementations.
Signed-off-by: NBen Dooks <ben@simtec.co.uk>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

Make the bad block table search functional again
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

The code was wrong in several aspects. The locking order was
inconsistent, the device aquire code did not reset a variable
after a wakeup and the wakeup handling was not working for
applications where multiple chips are sharing a single
hardware controller.
When a hardware controller is available the locking is now
reduced to the hardware controller lock and the waitqueue is
moved to the hardware controller structure in order to avoid
a wake_up_all().

The problem was pointed out by Ben Dooks, who also found the
missing variable reset as main cause for his deadlock problem.
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

Signed-off-by: NNicolas S. Dade <daden@symbol.com>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

Reverting the change from 1.136 to 1.137 (back to static allocation of ecc
arrays) due to stack corruption and ecc errors.
Signed-off-by: NJarkko Lavinen <jarkko.lavinen@nokia.com>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

Add helpful comment about oobfree so I can't claim two years from 
now that I don't remember what I was thinking.
Signed-off-by: NDan Brown <dan_brown@ieee.org>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

Signed-off-by: NDan Brown <dan_brown@ieee.org>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

Try not to break existing jffs2 installs, instead break oobfree into 
two out-of-order pieces.
Signed-off-by: NDan Brown <dan_brown@ieee.org>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

Signed-off-by: NDan Brown <dan_brown@ieee.org>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

I really hope this doesn't break something.
Signed-off-by: NDan Brown <dan_brown@ieee.org>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

Version 1.137 broke nand_read_ecc clients who pass NULL oobsel.  Fixed.
Signed-off-by: NDan Brown <dan_brown@ieee.org>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

Use oobfree to calculate the number of oob bytes available for fs usage
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

Add a new module param, show_firmware_partition.
Signed-off-by: NDan Brown <dan_brown@ieee.org>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

Signed-off-by: NArtem B. Bityuckiy <dedekind@infradead.org>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

Use the new NAND_SKIP_BBT option instead of defining a fake scan_bbt
handler.
Signed-off-by: NArtem B. Bityuckiy <dedekind@infradead.org>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

Updated with tglx's suggestion to simply the command invocation by
simply changing the address of the IO write area
Signed-off-by: NBen Dooks <ben@simtec.co.uk>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

Signed-off-by: NBen Dooks <ben@simtec.co.uk>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

Replace msleep by cond_resched. On machines with HZ=100 (e.g. ARM)
msleep slows down the operation by factor 10
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

Check timeout while we wait for the command to finish. No worry about a
false result. This prevents deadlocking when detecting an unknown number
of chips and is useful for removable media too.
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

Do not use the ready function here, as it might hang for ever. 
The result will show, whether the chip is there or not
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

Fix sparse errors due to lack of address-space markers
Updated header comments
Small re-format of initialiser
Signed-off-by: NBen Dooks <ben@simtec.co.uk>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

Scan 1st and 2nd pages of SP devices for BB marker by default.
Fix more then one page scanning in create_bbt.c.
Signed-off-by: NArtem B. Bityuckiy <dedekind@infradead.org>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

Move manufacturer ID search to display correct ID in case of buswidth
mismatch.
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

When scanning NAND for bad blocks, don't read the whole page, read
only needed OOB bytes instead. Also check the return code of the
nand_read_raw() function. Correctly free the this->bbt array in
case of failure. Tested with Large page NAND.

Fix debugging message.
Signed-off-by: NArtem B. Bityuckiy <dedekind@infradead.org>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

Small bugfix. Sometimes it may be handy not to have bbt.
So, this->bbt might be NULL.
Signed-off-by: NArtem B. Bityuckiy <dedekind@infradead.org>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

Make NFTL devices work on big endian machines.
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

Remove commented ugliness
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

Using the CONFIG_ options from KConfig seems to work better :8
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

Added routine to perform extra error status checks on erase and write
failures to determine if errors are correctable.
Added option to prevent JFFS2 from using virtual erase blocks.
Performed minor cleanup on whitespace and comments.
Signed-off-by: NDavid A. Marlin <dmarlin@redhat.com>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>