On Thu, 28 May 2020 13:31:13 +0200
Miquel Raynal [off-list ref] wrote:

Many OOB layouts and helpers are generic to all NAND chips, they
should not be restricted to be only used by raw NAND controller
drivers. They might later be used by generic ECC engines and SPI-NAND
devices as well so move them into a more generic place.

To avoid moving all the raw NAND core "history" into the generic NAND
layer, we already moved certain bits into legacy helpers in the raw
NAND core to ensure backward compatibility.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
---
 drivers/mtd/nand/Kconfig                      |  11 +
 drivers/mtd/nand/Makefile                     |   1 +
 .../mtd/nand/{raw/nand_bch.c => ecc-sw-bch.c} |   2 +-
 drivers/mtd/nand/ecc.c                        | 299 +++++++++++++++++
 drivers/mtd/nand/raw/Kconfig                  |  11 +-
 drivers/mtd/nand/raw/Makefile                 |   1 -
 drivers/mtd/nand/raw/atmel/nand-controller.c  |   3 +-
 drivers/mtd/nand/raw/denali.c                 |   3 +
 drivers/mtd/nand/raw/nand_base.c              | 313 +-----------------
 drivers/mtd/nand/raw/nand_toshiba.c           |   2 +
 drivers/mtd/nand/raw/nandsim.c                |   2 +-
 drivers/mtd/nand/raw/omap2.c                  |   2 +-
 drivers/mtd/nand/raw/sunxi_nand.c             |   3 +-
 drivers/mtd/nand/raw/tegra_nand.c             |   3 +-
 .../mtd/{nand_bch.h => nand-ecc-sw-bch.h}     |   6 +-
 include/linux/mtd/nand.h                      |  20 ++
 include/linux/mtd/rawnand.h                   |  17 +-
 17 files changed, 364 insertions(+), 335 deletions(-)
 rename drivers/mtd/nand/{raw/nand_bch.c => ecc-sw-bch.c} (99%)
 rename include/linux/mtd/{nand_bch.h => nand-ecc-sw-bch.h} (92%)

I feel like this patch could be split a little.

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