Currently, the selection of ECC byte ordering for software hamming is
done at compilation time, which doesn't make sense when ECC byte
calculation is done in hardware and byte ordering is forced by the
hardware engine.
In this case, only the correction is done in software and we want to
force the byte-ordering no matter the value of CONFIG_MTD_NAND_ECC_SMC.

This is typically the case for the FSMC (Smart Media ordering), TMIO and
TXX9NDFMC (regular byte ordering) blocks.

For all other use cases (pure software implementation, SM FTL and
nandecctest), we keep selecting the byte ordering based on the
CONFIG_MTD_NAND_ECC_SMC value. It might not be ideal for SM FTL (I'd
expect Smart Media ordering to be employed by the Smart Media FTL), but
this option doesn't seem to be enabled in the existing _defconfig, so
I can't tell setting sm_order to true is the right choice.

Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>

This moves JEDEC related code to nand_jedec.c and JEDEC related
struct/macros to include/linux/mtd/jedec.h.

Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>

This moves ONFI related code to nand_onfi.c and ONFI related
struct/macros to include/linux/mtd/onfi.h.

Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>

A lot of things defined in rawnand.h should not be exposed to NAND
controller drivers and should only be shared by core files.

Create the drivers/mtd/nand/raw/internals.h header to store such
definitions, and move all private defs to this header.

Also remove EXPORT_SYMBOLS() on functions that are not supposed to be
exposed.

Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>

onfi_get_async_timing_mode() is only used in one place inside
nand_base.c. Let's inline the code and kill the helper.

Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>

platform_nand_xxx definitions are just used by the plat_nand driver.
Let's move those definitions out of the core/driver-agnostic rawnand.h
header.

Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>

Those definitions are not used, let's remove them.

Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>

There's already a forward declaration of nand_chip at the beginning of
the file. Get rid of this one.

Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>

nand_scan[with_ids]() have been moved at the end of the file. We can
now get rid of of the nand_flash_dev forward declaration.

Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>

Move nand_scan[_with_ids]() and nand_wait_ready() at the end of the
file where all function prototype lies. This will also allow us to get
rid of the nand_flash_dev forward declaration.

Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>