This series comes out of the need to support software BCH ECC for the i.MX
NAND driver, as the ancient i.MX27 hardware only supports 1-bit Hamming
ECC which is not sufficient on more modern NAND chips.
1st of all the NAND layer is updated to Linux-6.9-rc2, because this has
better support for Software ECC. And yes, the update is overdue as our
last update is from Linux-5.9 which is already 4 years old. We take the
opportunity to move the NAND drivers over to drivers/mtd/nand/raw/, the
place where the Kernel NAND drivers live for several years now.
Next thing is to move the i.MX NAND driver over to exec_op which makes
it easier to support software BCH ECC. Before doing this we move over
to the Kernel i.MX NAND driver so that the same patches can be sent for
Kernel inclusion as well.
Finally fixing the driver for using software BCH ECC is only a small
patch.
I've tested the NAND layer update on i.MX6, i.MX27, i.MX25, SoCFPGA
(denali) and one Atmel sama5d4 device. The patch is huge and I am sure
there will be regressions somewhere in it, so I welcome all testing
reports and will happily fix fallout.
Sascha
Sascha Hauer (8):
bch: update from Kernel
mtd: nand: move to drivers/mtd/nand/raw/
mtd: update _lock/_unlock prototype
mtd: nand: update to Linux-6.9-rc2
mtd: nand: replace nand_imx driver with kernel driver
mtd: nand: mxc_nand: separate page read from ecc calc
mtd: nand: mxc_nand: implement exec_op
mtd: nand: mxc_nand: support software ECC
commands/Kconfig | 6 +-
common/imx-bbu-nand-fcb.c | 12 +-
drivers/mtd/Makefile | 2 +-
drivers/mtd/devices/docg3.c | 8 +-
drivers/mtd/mtdconcat.c | 4 +-
drivers/mtd/nand/Kconfig | 184 +-
drivers/mtd/nand/Makefile | 28 +-
drivers/mtd/nand/core.c | 133 +-
drivers/mtd/nand/ecc-sw-bch.c | 406 ++++
drivers/mtd/nand/ecc-sw-hamming.c | 660 +++++++
drivers/mtd/nand/ecc.c | 697 +++++++
drivers/mtd/nand/nand_bch.c | 219 ---
drivers/mtd/nand/nand_imx.c | 1494 --------------
drivers/mtd/nand/raw/Kconfig | 171 ++
drivers/mtd/nand/raw/Makefile | 23 +
drivers/mtd/nand/{ => raw}/atmel/Makefile | 0
.../mtd/nand/{ => raw}/atmel/atmel_nand_ecc.h | 0
drivers/mtd/nand/{ => raw}/atmel/legacy.c | 11 +-
.../nand/{ => raw}/atmel/nand-controller.c | 0
drivers/mtd/nand/{ => raw}/atmel/pmecc.c | 0
drivers/mtd/nand/{ => raw}/atmel/pmecc.h | 0
drivers/mtd/nand/{ => raw}/denali.h | 0
drivers/mtd/nand/{ => raw}/fsl_ifc.h | 0
drivers/mtd/nand/{ => raw}/internals.h | 5 +
drivers/mtd/nand/raw/mxc_nand.c | 1751 +++++++++++++++++
drivers/mtd/nand/{ => raw}/nand_amd.c | 0
drivers/mtd/nand/{ => raw}/nand_base.c | 1635 +++++++++------
drivers/mtd/nand/{ => raw}/nand_bbt.c | 0
drivers/mtd/nand/{ => raw}/nand_denali.c | 3 +-
drivers/mtd/nand/{ => raw}/nand_denali_dt.c | 0
drivers/mtd/nand/{ => raw}/nand_ecc.c | 0
drivers/mtd/nand/{ => raw}/nand_esmt.c | 17 +-
drivers/mtd/nand/{ => raw}/nand_fsl_ifc.c | 8 +-
drivers/mtd/nand/{ => raw}/nand_hynix.c | 59 +-
drivers/mtd/nand/{ => raw}/nand_ids.c | 0
drivers/mtd/nand/{ => raw}/nand_jedec.c | 0
drivers/mtd/nand/{ => raw}/nand_legacy.c | 0
drivers/mtd/nand/{ => raw}/nand_macronix.c | 42 +-
drivers/mtd/nand/{ => raw}/nand_micron.c | 24 +-
drivers/mtd/nand/{ => raw}/nand_mrvl_nfc.c | 10 +-
drivers/mtd/nand/{ => raw}/nand_mxs.c | 2 +-
.../nand/{ => raw}/nand_omap_bch_decoder.c | 0
.../nand/{ => raw}/nand_omap_bch_decoder.h | 0
drivers/mtd/nand/{ => raw}/nand_omap_gpmc.c | 5 +-
drivers/mtd/nand/{ => raw}/nand_onfi.c | 32 +-
drivers/mtd/nand/{ => raw}/nand_orion.c | 3 +-
drivers/mtd/nand/{ => raw}/nand_samsung.c | 22 +-
drivers/mtd/nand/{ => raw}/nand_timings.c | 370 +++-
drivers/mtd/nand/{ => raw}/nand_toshiba.c | 25 +-
drivers/mtd/nand/{ => raw}/nomadik_nand.c | 2 +-
drivers/mtd/nand/{ => raw}/omap_elm.c | 0
drivers/mtd/nand/{ => raw}/stm32_fmc2_nand.c | 2 +-
drivers/mtd/nor/cfi_flash.c | 4 +-
drivers/mtd/partition.c | 4 +-
drivers/mtd/spi-nor/spi-nor.c | 4 +-
drivers/net/e1000/mtd.c | 4 +-
drivers/of/of_mtd.c | 1 -
include/linux/bch.h | 25 +-
include/linux/mtd/mtd.h | 7 +-
include/linux/mtd/nand-ecc-sw-bch.h | 71 +
include/linux/mtd/nand-ecc-sw-hamming.h | 89 +
include/linux/mtd/nand.h | 327 ++-
include/linux/mtd/onfi.h | 42 +-
include/linux/mtd/rawnand.h | 275 ++-
include/nand.h | 2 +-
lib/Kconfig | 1 +
lib/bch.c | 167 +-
67 files changed, 6300 insertions(+), 2798 deletions(-)
create mode 100644 drivers/mtd/nand/ecc-sw-bch.c
create mode 100644 drivers/mtd/nand/ecc-sw-hamming.c
create mode 100644 drivers/mtd/nand/ecc.c
delete mode 100644 drivers/mtd/nand/nand_bch.c
delete mode 100644 drivers/mtd/nand/nand_imx.c
create mode 100644 drivers/mtd/nand/raw/Kconfig
create mode 100644 drivers/mtd/nand/raw/Makefile
rename drivers/mtd/nand/{ => raw}/atmel/Makefile (100%)
rename drivers/mtd/nand/{ => raw}/atmel/atmel_nand_ecc.h (100%)
rename drivers/mtd/nand/{ => raw}/atmel/legacy.c (99%)
rename drivers/mtd/nand/{ => raw}/atmel/nand-controller.c (100%)
rename drivers/mtd/nand/{ => raw}/atmel/pmecc.c (100%)
rename drivers/mtd/nand/{ => raw}/atmel/pmecc.h (100%)
rename drivers/mtd/nand/{ => raw}/denali.h (100%)
rename drivers/mtd/nand/{ => raw}/fsl_ifc.h (100%)
rename drivers/mtd/nand/{ => raw}/internals.h (95%)
create mode 100644 drivers/mtd/nand/raw/mxc_nand.c
rename drivers/mtd/nand/{ => raw}/nand_amd.c (100%)
rename drivers/mtd/nand/{ => raw}/nand_base.c (82%)
rename drivers/mtd/nand/{ => raw}/nand_bbt.c (100%)
rename drivers/mtd/nand/{ => raw}/nand_denali.c (99%)
rename drivers/mtd/nand/{ => raw}/nand_denali_dt.c (100%)
rename drivers/mtd/nand/{ => raw}/nand_ecc.c (100%)
rename drivers/mtd/nand/{ => raw}/nand_esmt.c (76%)
rename drivers/mtd/nand/{ => raw}/nand_fsl_ifc.c (99%)
rename drivers/mtd/nand/{ => raw}/nand_hynix.c (92%)
rename drivers/mtd/nand/{ => raw}/nand_ids.c (100%)
rename drivers/mtd/nand/{ => raw}/nand_jedec.c (100%)
rename drivers/mtd/nand/{ => raw}/nand_legacy.c (100%)
rename drivers/mtd/nand/{ => raw}/nand_macronix.c (88%)
rename drivers/mtd/nand/{ => raw}/nand_micron.c (95%)
rename drivers/mtd/nand/{ => raw}/nand_mrvl_nfc.c (99%)
rename drivers/mtd/nand/{ => raw}/nand_mxs.c (99%)
rename drivers/mtd/nand/{ => raw}/nand_omap_bch_decoder.c (100%)
rename drivers/mtd/nand/{ => raw}/nand_omap_bch_decoder.h (100%)
rename drivers/mtd/nand/{ => raw}/nand_omap_gpmc.c (99%)
rename drivers/mtd/nand/{ => raw}/nand_onfi.c (89%)
rename drivers/mtd/nand/{ => raw}/nand_orion.c (97%)
rename drivers/mtd/nand/{ => raw}/nand_samsung.c (86%)
rename drivers/mtd/nand/{ => raw}/nand_timings.c (52%)
rename drivers/mtd/nand/{ => raw}/nand_toshiba.c (92%)
rename drivers/mtd/nand/{ => raw}/nomadik_nand.c (99%)
rename drivers/mtd/nand/{ => raw}/omap_elm.c (100%)
rename drivers/mtd/nand/{ => raw}/stm32_fmc2_nand.c (99%)
create mode 100644 include/linux/mtd/nand-ecc-sw-bch.h
create mode 100644 include/linux/mtd/nand-ecc-sw-hamming.h
--
2.39.2
