[PATCH v3 0/7] mtd: nand: Abstract away the NAND interface type

Boris Brezillon
2016-11-21T12:45:54Z

Hi,

This series is aiming at providing a generic NAND layer to share code
between different NAND based devices.

We currently have 3 different interfaces to interact with NANDs:
- Raw NANDs
- OneNANDs
- SPI NANDs

Apart from the way these NAND devices are accessed they have a lot
in common, like the way the memory is organized, or their constraints.
This is usually a good sign that some work should be done to factorize
the code.

This work has been started by Peter who wanted to re-use the BBT
code for its SPI-NAND driver. But I think we can push it further
other stuff (the software ECC implementation, or the way offsets are
converted to block/page number).

Peter, can you please review/test this version, and if possible, post
the code you've done to support SPI NANDs.

Thanks,

Boris

Changes since v2:
- fix nand_offs_to_die() (Reported by Peter Pan)
- fix bugs patch 6 (Reported by Peter Pan)
- get rid of the nand_chip->bbt field
- fix a few coding style issues reported by checkpatch

Changes since v1:
- use the 'raw' prefix instead of 'rawnand'
- fix a few coding style issues and typos

Boris Brezillon (7):
mtd: nand: Rename nand.h into rawnand.h
mtd: nand: move raw NAND related code to the raw/ subdir
mtd: nand: add a nand.h file to expose basic NAND stuff
mtd: nand: raw: prefix conflicting names with nandc instead of nand
mtd: nand: raw: create struct rawnand_device
mtd: nand: raw: make BBT code more generic
mtd: nand: move BBT code to drivers/mtd/nand/

Documentation/DocBook/mtdnand.tmpl | 12 +-
MAINTAINERS | 20 +-
arch/arm/mach-davinci/board-da850-evm.c | 2 +-
arch/arm/mach-davinci/board-dm355-evm.c | 2 +-
arch/arm/mach-davinci/board-dm355-leopard.c | 2 +-
arch/arm/mach-davinci/board-dm365-evm.c | 2 +-
arch/arm/mach-davinci/board-dm644x-evm.c | 2 +-
arch/arm/mach-davinci/board-dm646x-evm.c | 2 +-
arch/arm/mach-davinci/board-sffsdr.c | 2 +-
arch/arm/mach-dove/dove-db-setup.c | 2 +-
arch/arm/mach-ep93xx/snappercl15.c | 6 +-
arch/arm/mach-ep93xx/ts72xx.c | 6 +-
arch/arm/mach-imx/mach-qong.c | 4 +-
arch/arm/mach-ixp4xx/ixdp425-setup.c | 4 +-
arch/arm/mach-mmp/aspenite.c | 2 +-
arch/arm/mach-omap1/board-fsample.c | 2 +-
arch/arm/mach-omap1/board-h2.c | 2 +-
arch/arm/mach-omap1/board-h3.c | 2 +-
arch/arm/mach-omap1/board-nand.c | 4 +-
arch/arm/mach-omap1/board-perseus2.c | 2 +-
arch/arm/mach-omap2/gpmc-nand.c | 2 +-
arch/arm/mach-orion5x/db88f5281-setup.c | 2 +-
arch/arm/mach-orion5x/kurobox_pro-setup.c | 2 +-
arch/arm/mach-orion5x/ts209-setup.c | 2 +-
arch/arm/mach-orion5x/ts78xx-setup.c | 8 +-
arch/arm/mach-pxa/balloon3.c | 4 +-
arch/arm/mach-pxa/em-x270.c | 4 +-
arch/arm/mach-pxa/eseries.c | 2 +-
arch/arm/mach-pxa/palmtx.c | 4 +-
arch/arm/mach-pxa/tosa.c | 2 +-
arch/arm/mach-s3c24xx/common-smdk.c | 2 +-
arch/arm/mach-s3c24xx/mach-anubis.c | 2 +-
arch/arm/mach-s3c24xx/mach-at2440evb.c | 2 +-
arch/arm/mach-s3c24xx/mach-bast.c | 2 +-
arch/arm/mach-s3c24xx/mach-gta02.c | 2 +-
arch/arm/mach-s3c24xx/mach-jive.c | 2 +-
arch/arm/mach-s3c24xx/mach-mini2440.c | 2 +-
arch/arm/mach-s3c24xx/mach-osiris.c | 2 +-
arch/arm/mach-s3c24xx/mach-qt2410.c | 2 +-
arch/arm/mach-s3c24xx/mach-rx3715.c | 2 +-
arch/arm/mach-s3c24xx/mach-vstms.c | 2 +-
arch/blackfin/mach-bf537/boards/dnp5370.c | 2 +-
arch/blackfin/mach-bf537/boards/stamp.c | 4 +-
arch/blackfin/mach-bf561/boards/acvilon.c | 4 +-
arch/cris/arch-v32/drivers/mach-a3/nandflash.c | 6 +-
arch/cris/arch-v32/drivers/mach-fs/nandflash.c | 6 +-
arch/mips/alchemy/devboards/db1200.c | 4 +-
arch/mips/alchemy/devboards/db1300.c | 4 +-
arch/mips/alchemy/devboards/db1550.c | 4 +-
arch/mips/include/asm/mach-jz4740/jz4740_nand.h | 2 +-
arch/mips/jz4740/board-qi_lb60.c | 2 +-
arch/mips/netlogic/xlr/platform-flash.c | 2 +-
arch/mips/pnx833x/common/platform.c | 4 +-
arch/mips/rb532/devices.c | 4 +-
arch/sh/boards/mach-migor/setup.c | 4 +-
drivers/mtd/inftlcore.c | 2 +-
drivers/mtd/nand/Kconfig | 575 +-------
drivers/mtd/nand/Makefile | 65 +-
drivers/mtd/nand/{nand_bbt.c => bbt.c} | 675 +++++----
drivers/mtd/nand/raw/Kconfig | 576 ++++++++
drivers/mtd/nand/raw/Makefile | 64 +
drivers/mtd/nand/{ => raw}/ams-delta.c | 10 +-
drivers/mtd/nand/{ => raw}/atmel_nand.c | 62 +-
drivers/mtd/nand/{ => raw}/atmel_nand_ecc.h | 0
drivers/mtd/nand/{ => raw}/atmel_nand_nfc.h | 0
drivers/mtd/nand/{ => raw}/au1550nd.c | 28 +-
drivers/mtd/nand/{ => raw}/bcm47xxnflash/Makefile | 0
.../nand/{ => raw}/bcm47xxnflash/bcm47xxnflash.h | 2 +-
drivers/mtd/nand/{ => raw}/bcm47xxnflash/main.c | 4 +-
.../mtd/nand/{ => raw}/bcm47xxnflash/ops_bcm4706.c | 18 +-
drivers/mtd/nand/{ => raw}/bf5xx_nand.c | 34 +-
drivers/mtd/nand/{ => raw}/brcmnand/Makefile | 0
.../mtd/nand/{ => raw}/brcmnand/bcm63138_nand.c | 0
drivers/mtd/nand/{ => raw}/brcmnand/bcm6368_nand.c | 0
drivers/mtd/nand/{ => raw}/brcmnand/brcmnand.c | 34 +-
drivers/mtd/nand/{ => raw}/brcmnand/brcmnand.h | 0
drivers/mtd/nand/{ => raw}/brcmnand/brcmstb_nand.c | 0
drivers/mtd/nand/{ => raw}/brcmnand/iproc_nand.c | 0
drivers/mtd/nand/{ => raw}/cafe_nand.c | 26 +-
drivers/mtd/nand/{ => raw}/cmx270_nand.c | 14 +-
drivers/mtd/nand/{ => raw}/cs553x_nand.c | 22 +-
drivers/mtd/nand/{ => raw}/davinci_nand.c | 16 +-
drivers/mtd/nand/{ => raw}/denali.c | 12 +-
drivers/mtd/nand/{ => raw}/denali.h | 2 +-
drivers/mtd/nand/{ => raw}/denali_dt.c | 0
drivers/mtd/nand/{ => raw}/denali_pci.c | 0
drivers/mtd/nand/{ => raw}/diskonchip.c | 70 +-
drivers/mtd/nand/{ => raw}/docg4.c | 45 +-
drivers/mtd/nand/{ => raw}/fsl_elbc_nand.c | 28 +-
drivers/mtd/nand/{ => raw}/fsl_ifc_nand.c | 30 +-
drivers/mtd/nand/{ => raw}/fsl_upm.c | 14 +-
drivers/mtd/nand/{ => raw}/fsmc_nand.c | 26 +-
drivers/mtd/nand/{ => raw}/gpio.c | 8 +-
drivers/mtd/nand/{ => raw}/gpmi-nand/Makefile | 0
drivers/mtd/nand/{ => raw}/gpmi-nand/bch-regs.h | 0
drivers/mtd/nand/{ => raw}/gpmi-nand/gpmi-lib.c | 2 +-
drivers/mtd/nand/{ => raw}/gpmi-nand/gpmi-nand.c | 38 +-
drivers/mtd/nand/{ => raw}/gpmi-nand/gpmi-nand.h | 2 +-
drivers/mtd/nand/{ => raw}/gpmi-nand/gpmi-regs.h | 0
drivers/mtd/nand/{ => raw}/hisi504_nand.c | 26 +-
drivers/mtd/nand/{ => raw}/jz4740_nand.c | 14 +-
drivers/mtd/nand/{ => raw}/jz4780_bch.c | 0
drivers/mtd/nand/{ => raw}/jz4780_bch.h | 0
drivers/mtd/nand/{ => raw}/jz4780_nand.c | 10 +-
drivers/mtd/nand/{ => raw}/lpc32xx_mlc.c | 18 +-
drivers/mtd/nand/{ => raw}/lpc32xx_slc.c | 22 +-
drivers/mtd/nand/{ => raw}/mpc5121_nfc.c | 28 +-
drivers/mtd/nand/{ => raw}/mtk_ecc.c | 0
drivers/mtd/nand/{ => raw}/mtk_ecc.h | 0
drivers/mtd/nand/{ => raw}/mtk_nand.c | 40 +-
drivers/mtd/nand/{ => raw}/mxc_nand.c | 54 +-
drivers/mtd/nand/{ => raw}/nand_base.c | 246 +++-
drivers/mtd/nand/{ => raw}/nand_bch.c | 8 +-
drivers/mtd/nand/{ => raw}/nand_ecc.c | 6 +-
drivers/mtd/nand/{ => raw}/nand_ids.c | 2 +-
drivers/mtd/nand/{ => raw}/nand_timings.c | 2 +-
drivers/mtd/nand/{ => raw}/nandsim.c | 24 +-
drivers/mtd/nand/{ => raw}/ndfc.c | 20 +-
drivers/mtd/nand/{ => raw}/nuc900_nand.c | 10 +-
drivers/mtd/nand/{ => raw}/omap2.c | 22 +-
drivers/mtd/nand/{ => raw}/omap_elm.c | 0
drivers/mtd/nand/{ => raw}/orion_nand.c | 8 +-
drivers/mtd/nand/{ => raw}/oxnas_nand.c | 14 +-
drivers/mtd/nand/{ => raw}/pasemi_nand.c | 12 +-
drivers/mtd/nand/{ => raw}/plat_nand.c | 6 +-
drivers/mtd/nand/{ => raw}/pxa3xx_nand.c | 38 +-
drivers/mtd/nand/{ => raw}/qcom_nandc.c | 30 +-
drivers/mtd/nand/{ => raw}/r852.c | 8 +-
drivers/mtd/nand/{ => raw}/r852.h | 2 +-
drivers/mtd/nand/{ => raw}/s3c2410.c | 18 +-
drivers/mtd/nand/{ => raw}/sh_flctl.c | 12 +-
drivers/mtd/nand/{ => raw}/sharpsl.c | 10 +-
drivers/mtd/nand/{ => raw}/sm_common.c | 4 +-
drivers/mtd/nand/{ => raw}/sm_common.h | 0
drivers/mtd/nand/{ => raw}/socrates_nand.c | 14 +-
drivers/mtd/nand/{ => raw}/sunxi_nand.c | 60 +-
drivers/mtd/nand/{ => raw}/tango_nand.c | 32 +-
drivers/mtd/nand/{ => raw}/tmio_nand.c | 10 +-
drivers/mtd/nand/{ => raw}/txx9ndfmc.c | 16 +-
drivers/mtd/nand/{ => raw}/vf610_nfc.c | 6 +-
drivers/mtd/nand/{ => raw}/xway_nand.c | 12 +-
drivers/mtd/nftlcore.c | 2 +-
drivers/mtd/nftlmount.c | 2 +-
drivers/mtd/sm_ftl.c | 2 +-
drivers/mtd/ssfdc.c | 2 +-
drivers/mtd/tests/nandbiterrs.c | 2 +-
drivers/staging/mt29f_spinand/mt29f_spinand.c | 8 +-
fs/jffs2/wbuf.c | 2 +-
include/linux/mtd/nand-gpio.h | 2 +-
include/linux/mtd/nand.h | 1463 +++++---------------
include/linux/mtd/rawnand.h | 1229 ++++++++++++++++
include/linux/mtd/sh_flctl.h | 4 +-
include/linux/mtd/sharpsl.h | 2 +-
include/linux/platform_data/atmel.h | 2 +-
include/linux/platform_data/mtd-davinci.h | 2 +-
155 files changed, 3442 insertions(+), 2838 deletions(-)
rename drivers/mtd/nand/{nand_bbt.c => bbt.c} (70%)
create mode 100644 drivers/mtd/nand/raw/Kconfig
create mode 100644 drivers/mtd/nand/raw/Makefile
rename drivers/mtd/nand/{ => raw}/ams-delta.c (97%)
rename drivers/mtd/nand/{ => raw}/atmel_nand.c (97%)
rename drivers/mtd/nand/{ => raw}/atmel_nand_ecc.h (100%)
rename drivers/mtd/nand/{ => raw}/atmel_nand_nfc.h (100%)
rename drivers/mtd/nand/{ => raw}/au1550nd.c (95%)
rename drivers/mtd/nand/{ => raw}/bcm47xxnflash/Makefile (100%)
rename drivers/mtd/nand/{ => raw}/bcm47xxnflash/bcm47xxnflash.h (92%)
rename drivers/mtd/nand/{ => raw}/bcm47xxnflash/main.c (95%)
rename drivers/mtd/nand/{ => raw}/bcm47xxnflash/ops_bcm4706.c (96%)
rename drivers/mtd/nand/{ => raw}/bf5xx_nand.c (95%)
rename drivers/mtd/nand/{ => raw}/brcmnand/Makefile (100%)
rename drivers/mtd/nand/{ => raw}/brcmnand/bcm63138_nand.c (100%)
rename drivers/mtd/nand/{ => raw}/brcmnand/bcm6368_nand.c (100%)
rename drivers/mtd/nand/{ => raw}/brcmnand/brcmnand.c (98%)
rename drivers/mtd/nand/{ => raw}/brcmnand/brcmnand.h (100%)
rename drivers/mtd/nand/{ => raw}/brcmnand/brcmstb_nand.c (100%)
rename drivers/mtd/nand/{ => raw}/brcmnand/iproc_nand.c (100%)
rename drivers/mtd/nand/{ => raw}/cafe_nand.c (97%)
rename drivers/mtd/nand/{ => raw}/cmx270_nand.c (94%)
rename drivers/mtd/nand/{ => raw}/cs553x_nand.c (95%)
rename drivers/mtd/nand/{ => raw}/davinci_nand.c (98%)
rename drivers/mtd/nand/{ => raw}/denali.c (99%)
rename drivers/mtd/nand/{ => raw}/denali.h (99%)
rename drivers/mtd/nand/{ => raw}/denali_dt.c (100%)
rename drivers/mtd/nand/{ => raw}/denali_pci.c (100%)
rename drivers/mtd/nand/{ => raw}/diskonchip.c (96%)
rename drivers/mtd/nand/{ => raw}/docg4.c (97%)
rename drivers/mtd/nand/{ => raw}/fsl_elbc_nand.c (97%)
rename drivers/mtd/nand/{ => raw}/fsl_ifc_nand.c (97%)
rename drivers/mtd/nand/{ => raw}/fsl_upm.c (96%)
rename drivers/mtd/nand/{ => raw}/fsmc_nand.c (97%)
rename drivers/mtd/nand/{ => raw}/gpio.c (97%)
rename drivers/mtd/nand/{ => raw}/gpmi-nand/Makefile (100%)
rename drivers/mtd/nand/{ => raw}/gpmi-nand/bch-regs.h (100%)
rename drivers/mtd/nand/{ => raw}/gpmi-nand/gpmi-lib.c (99%)
rename drivers/mtd/nand/{ => raw}/gpmi-nand/gpmi-nand.c (98%)
rename drivers/mtd/nand/{ => raw}/gpmi-nand/gpmi-nand.h (99%)
rename drivers/mtd/nand/{ => raw}/gpmi-nand/gpmi-regs.h (100%)
rename drivers/mtd/nand/{ => raw}/hisi504_nand.c (97%)
rename drivers/mtd/nand/{ => raw}/jz4740_nand.c (97%)
rename drivers/mtd/nand/{ => raw}/jz4780_bch.c (100%)
rename drivers/mtd/nand/{ => raw}/jz4780_bch.h (100%)
rename drivers/mtd/nand/{ => raw}/jz4780_nand.c (97%)
rename drivers/mtd/nand/{ => raw}/lpc32xx_mlc.c (98%)
rename drivers/mtd/nand/{ => raw}/lpc32xx_slc.c (98%)
rename drivers/mtd/nand/{ => raw}/mpc5121_nfc.c (97%)
rename drivers/mtd/nand/{ => raw}/mtk_ecc.c (100%)
rename drivers/mtd/nand/{ => raw}/mtk_ecc.h (100%)
rename drivers/mtd/nand/{ => raw}/mtk_nand.c (97%)
rename drivers/mtd/nand/{ => raw}/mxc_nand.c (97%)
rename drivers/mtd/nand/{ => raw}/nand_base.c (95%)
rename drivers/mtd/nand/{ => raw}/nand_bch.c (97%)
rename drivers/mtd/nand/{ => raw}/nand_ecc.c (99%)
rename drivers/mtd/nand/{ => raw}/nand_ids.c (99%)
rename drivers/mtd/nand/{ => raw}/nand_timings.c (99%)
rename drivers/mtd/nand/{ => raw}/nandsim.c (99%)
rename drivers/mtd/nand/{ => raw}/ndfc.c (93%)
rename drivers/mtd/nand/{ => raw}/nuc900_nand.c (96%)
rename drivers/mtd/nand/{ => raw}/omap2.c (99%)
rename drivers/mtd/nand/{ => raw}/omap_elm.c (100%)
rename drivers/mtd/nand/{ => raw}/orion_nand.c (97%)
rename drivers/mtd/nand/{ => raw}/oxnas_nand.c (94%)
rename drivers/mtd/nand/{ => raw}/pasemi_nand.c (95%)
rename drivers/mtd/nand/{ => raw}/plat_nand.c (96%)
rename drivers/mtd/nand/{ => raw}/pxa3xx_nand.c (98%)
rename drivers/mtd/nand/{ => raw}/qcom_nandc.c (98%)
rename drivers/mtd/nand/{ => raw}/r852.c (99%)
rename drivers/mtd/nand/{ => raw}/r852.h (99%)
rename drivers/mtd/nand/{ => raw}/s3c2410.c (98%)
rename drivers/mtd/nand/{ => raw}/sh_flctl.c (99%)
rename drivers/mtd/nand/{ => raw}/sharpsl.c (96%)
rename drivers/mtd/nand/{ => raw}/sm_common.c (98%)
rename drivers/mtd/nand/{ => raw}/sm_common.h (100%)
rename drivers/mtd/nand/{ => raw}/socrates_nand.c (94%)
rename drivers/mtd/nand/{ => raw}/sunxi_nand.c (97%)
rename drivers/mtd/nand/{ => raw}/tango_nand.c (95%)
rename drivers/mtd/nand/{ => raw}/tmio_nand.c (98%)
rename drivers/mtd/nand/{ => raw}/txx9ndfmc.c (97%)
rename drivers/mtd/nand/{ => raw}/vf610_nfc.c (99%)
rename drivers/mtd/nand/{ => raw}/xway_nand.c (96%)
create mode 100644 include/linux/mtd/rawnand.h

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2.7.4