The info structure for out of band data was copied into
the mtd structure. Make it a pointer and remove the ability
to set it from userspace. The position of ecc bytes is
defined by the hardware and should not be changed by software.
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

The platform structure was lacking an oobinfo field.
The NDFC driver had some remains from another tree.
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>

Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>

Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>

Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>

A data node might not be in the fraglist; it could be f->metadata.
Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>

We have a type pointer. Make use of it instead of the error prone nand_ids[i]
reference.

The NAND driver used to set default name settings from the chip ID
string for the device. The feature got lost during the rework. Add it back.
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

nCE setting can be done when the first command is issued to the device.
We keep the deselect functionality as it makes sense to deassert nCE
when the device becomes idle.
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>

This allows us to drop another pointer from the struct jffs2_raw_node_ref,
shrinking it to 8 bytes on 32-bit machines (if the TEST_TOTLEN) paranoia
check is turned off, which will be committed soon).
Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>

Modularize the write function and reorganaize the internal buffer
management. Remove obsolete chip options and fixup all affected
users.
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

PCI is faked on these devices by SMM traps. Don't depend on that --
check for the chipset directly instead.
Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>

Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>

Bad tglx. No biscuit.
Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>

Removing readv from struct mtd_info broke block2mtd. Remove the
reference and the useless default implementation.
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

Split the core of the read function out and implement
seperate handling functions for software and hardware
ECC.
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

Add read/write function pointers to struct nand_ecc_ctrl to
prepare the modulaization of nand_read/write functions. The
current implementation handles every type of ecc mode
software/hardware and all kinds of strange ecc placement
schemes in one switch/if construct. Thats too complex to
maintain and too inflexible to expand. Modularization will
also shorten the code pathes of the read/write functions.
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

FLASH - especially NAND FLASH - will become less reliable
and bit flips more likely. Add an ECC statistics struct
to struct mtd_info to keep track of this.
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

Cleanup the code in the oob related functions and
make use of the new NO_READRDY flag.
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

The nand driver has a superflous read ready / command
delay in the read functions. This was added to handle
chips which have an automatic read forward. Newer
chips do not have this functionality anymore. Add this
option to avoid the delay / I/O operation. Mark all
large page chips with the new option flag.
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

The lock simplifying patch did not move the lock and waitqueue
initialization into the controller allocation patch.
This reinitializes waitqueue and spinlocks also for driver
supplied controller stuctures. Move it into the allocation path.
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

Print wasted_size in scanned eraseblocks, print range correctly for
summary dirent and inode entries.
Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>

Preallocation of refs is shortly going to be a per-eraseblock thing,
rather than per-filesystem. Add the required argument to the function.
Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>

Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>

... to jffs2_free_jeb_node_refs() since that's what it does.
Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>

One more place where we were changing the accounting info without
actually allocating a ref for the lost space...
Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>

The cmd_ctrl rework lacks some state transition flags.
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

Cleanup the functions which are not going to change in the
next steps.
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

Random unthinking 'cleanup' caused debug messages like this:
   Obsoleting node at 0x0006daf4 of len 0x3a4: <7>Dirtying

If messages are continuation of an existing line, they don't need
to be prefixed with KERN_DEBUG.

THINK. Or you will be replaced by a small shell script.
Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>

Another part of the preparation for switching to an array...
Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>

As the first step towards eliminating the ref->next_phys member and saving
memory by using an _array_ of struct jffs2_raw_node_ref per eraseblock,
stop the write functions from allocating their own refs; have them just
_reserve_ the appropriate number instead. Then jffs2_link_node_ref() can
just fill them in.

Use a linked list of pre-allocated refs in the superblock, for now. Once
we switch to an array, it'll just be a case of extending that array.
Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>

Move the define out of the middle of the code and add an
appropriate comment.
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

The previous change of the command / hardware control allows to
remove the write_byte/word functions completely, as their only
user were nand_command and nand_command_lp.
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

The hwcontrol function enforced a step by step state machine
for any kind of hardware chip access. Let the hardware driver
know which control bits are set and inform it about a change
of the control lines. Let the hardware driver write out the
command and address bytes directly. This gives a peformance
advantage for address bus controlled chips and simplifies the
quirks in the hardware drivers.
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

The previous _ecc removal / cleanup broke (i)nftl module usage.
Export the missing symbol.
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

Both drivers can not be fixed and compiled due to missing header files.
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

MTD clients are agnostic of FLASH which needs ECC suppport.
Remove the functions and fixup the callers.
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

These functions were never implemented and added only bloat to
partition and concat code.
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>