map_word_ff() was setting the mapword to ~0UL regardless of the
buswidth of the mapped flash chip. The read_map functions are
buswidth aware and therefor the map_word_equal function failed.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Do not call wait_for_completion, when the gc task is not there.
Prevent an oops when the gc thread was not started.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Check for errors besides infinite loops when writing and erasing.
Signed-off-by: Eric W. Biederman <ebiederman@lnxi.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This reworks the XIP locking to make sure no lock primitive is ever
called from XIP disabled paths even if in theory they should not
cause any reschedule. Relying on the current spinlock implementation
is rather fragile and not especially clean from an abstraction pov.
The recent RT work makes it even more obvious.
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
First kill GC thread, then start clearing the internal structures
Signed-off-by: Artem B. Bityuckiy <dedekind@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Fix the bug that caouses problems when compiling for NOR.
We read a newly erased block so we don't need to check ECC.
Define jffs2_is_writebuffered as zero if there is no wbuf.
Signed-off-by: Artem B. Bityuckiy <dedekind@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
- Lindent
- Removal of slram/phram functionality
- Removal of most #ifdefs
Signed-off-by: Joern Engel <joern@wohnheim.fh-wedel.de>
Signed-off-by: Thomas 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: Jarkko Lavinen <jarkko.lavinen@nokia.com>
Signed-off-by: Thomas 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: Dan Brown <dan_brown@ieee.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Try not to break existing jffs2 installs, instead break oobfree into
two out-of-order pieces.
Signed-off-by: Dan Brown <dan_brown@ieee.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Version 1.137 broke nand_read_ecc clients who pass NULL oobsel. Fixed.
Signed-off-by: Dan Brown <dan_brown@ieee.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
to make sure the flash is in array mode whenever we're about to
reboot. This is especially useful to allow "soft" reboot to work
which consists of branching back into the bootloader.
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Skip jiffy delay after each block lock/unlock for Intel CFI flash
with the "Instant Individual Block Locking" feature bit set.
Signed-off-by: Todd Poynor <tpoynor@mvista.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Make sure the erase_pending_wbuf_list's blocks are taken into account
when picking the block to GC.
Signed-off-by: Artem B. Bityuckiy <dedekind@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Use the new NAND_SKIP_BBT option instead of defining a fake scan_bbt
handler.
Signed-off-by: Artem B. Bityuckiy <dedekind@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Setting the slowport to 8-bit mode is something that ought to be
done in the IXP2000 generic code, not in the MTD map driver. See
the description for ARM patch 2493/1 for an explanation.
http://www.arm.linux.org.uk/developer/patches/viewpatch.php?id=2493/1
Now that 2493/1 has been accepted and will be upstream soon, this
doesn't need to be done in the map driver anymore.
Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
