[U-Boot,v2,00/21] SPI-NAND support

During the last months, Boris Brezillon shared his work to support
serial flashes within Linux. First, he delivered (and merged) a new
layer called spi-mem. He also initiated in Linux MTD subsystem the move
of all 'raw' NAND related code to a raw/ subdirectory, adding at the
same time a NAND core that would be shared with all NAND devices. Then,
he contributed a generic SPI-NAND driver, making use of this NAND core,
as well as some vendor code to drive a few chips.

On top of this work, I added an 'mtd' U-Boot command to handle all sort
of MTD devices. This should become the default command instead of having
one per flash flavor ('sf', 'nand', 'spi-nand' ?).

The series has been tested on an Ocelot board PCB123 (VSC7514),
featuring a Macronix SPI NAND chip.

TL;DR: the series contains:
- A few patches from Linux to resynchronize some areas of the MTD layer.
- Various fixes and re-organization of the MTD subsystem.
- The introduction of the SPI-mem interface.
- The addition of the generic SPI-NAND driver (and its bindings).
- Several SPI NAND chip drivers (Macronix, Micron, Winbond).
- A new 'mtd' command.

Any comments on the code, the organization and the respect of U-Boot
driver model will be welcome.

Thanks,
Miquèl

Changes since v1:
-----------------
* Fixed the nand_memorg structure of the MX35LF2GE4AB chip.
* Added Reviewed-by tags from Jagan.
* Backported and squashed two patches fixing things in the SPI NAND core
  received on the Linux ML.
* Backported more changes in mtdcore.c from Linux.
* Added a patch to add a fallback on mtd->_read/_write() in mtdcore.c
  when mtd->_read/write_oob() is not supported.
* Removed the DT changes, useless as the DTs are not available in
  mainline yet.
* Addressed Boris/Stefan comments on the 'mtd' command.
* Added support for multi-pages OOB read/write.


Boris Brezillon (7):
  mtd: Fallback to ->_read/write_oob() when ->_read/write() is missing
  mtd: Add sanity checks in mtd_write/read_oob()
  mtd: nand: Add core infrastructure to deal with NAND devices
  mtd: nand: Pass mode information to nand_page_io_req
  spi: Extend the core to ease integration of SPI memory controllers
  mtd: spinand: Add initial support for the MX35LF1GE4AB chip
  dt-bindings: Add bindings for SPI NAND devices

Brian Norris (1):
  mtd: add get/set of_node/flash_node helpers

Ezequiel Garcia (1):
  mtd: Uninline mtd_write_oob and move it to mtdcore.c

Frieder Schrempf (1):
  mtd: spinand: Add initial support for Winbond W25M02GV

Miquel Raynal (9):
  mtd: Fallback to ->_read/write() when ->_read/write_oob() is missing
  mtd: fix build issue with includes
  mtd: move definitions to enlarge their range
  mtd: move all flash categories inside MTD submenu
  mtd: move NAND fiels into a raw/ subdirectory
  mtd: rename nand into rawnand in Kconfig prompt
  mtd: spinand: Add initial support for the MX35LF2GE4AB chip
  mtd: uclass: add probe function
  cmd: mtd: add 'mtd' command

Peter Pan (2):
  mtd: nand: Add core infrastructure to support SPI NANDs
  mtd: spinand: Add initial support for Micron MT29F2G01ABAGD

 cmd/Kconfig                                   |    5 +
 cmd/Makefile                                  |    1 +
 cmd/mtd.c                                     |  287 ++++++
 doc/device-tree-bindings/mtd/spi-nand.txt     |   27 +
 drivers/mtd/Kconfig                           |    4 +-
 drivers/mtd/Makefile                          |    4 +-
 drivers/mtd/mtd-uclass.c                      |    9 +
 drivers/mtd/mtdcore.c                         |  106 ++-
 drivers/mtd/mtdcore.h                         |    6 -
 drivers/mtd/mtdpart.c                         |    6 +-
 drivers/mtd/nand/Kconfig                      |  241 +----
 drivers/mtd/nand/Makefile                     |   81 +-
 drivers/mtd/nand/bbt.c                        |  132 +++
 drivers/mtd/nand/core.c                       |  243 +++++
 drivers/mtd/nand/raw/Kconfig                  |  239 +++++
 drivers/mtd/nand/raw/Makefile                 |   78 ++
 drivers/mtd/nand/{ => raw}/am335x_spl_bch.c   |    0
 drivers/mtd/nand/{ => raw}/arasan_nfc.c       |    0
 drivers/mtd/nand/{ => raw}/atmel_nand.c       |    0
 drivers/mtd/nand/{ => raw}/atmel_nand_ecc.h   |    0
 drivers/mtd/nand/{ => raw}/davinci_nand.c     |    0
 drivers/mtd/nand/{ => raw}/denali.c           |    0
 drivers/mtd/nand/{ => raw}/denali.h           |    0
 drivers/mtd/nand/{ => raw}/denali_dt.c        |    0
 drivers/mtd/nand/{ => raw}/denali_spl.c       |    0
 drivers/mtd/nand/{ => raw}/fsl_elbc_nand.c    |    0
 drivers/mtd/nand/{ => raw}/fsl_elbc_spl.c     |    0
 drivers/mtd/nand/{ => raw}/fsl_ifc_nand.c     |    0
 drivers/mtd/nand/{ => raw}/fsl_ifc_spl.c      |    0
 drivers/mtd/nand/{ => raw}/fsl_upm.c          |    0
 drivers/mtd/nand/{ => raw}/fsmc_nand.c        |    0
 drivers/mtd/nand/{ => raw}/kb9202_nand.c      |    0
 drivers/mtd/nand/{ => raw}/kirkwood_nand.c    |    0
 drivers/mtd/nand/{ => raw}/kmeter1_nand.c     |    0
 drivers/mtd/nand/{ => raw}/lpc32xx_nand_mlc.c |    0
 drivers/mtd/nand/{ => raw}/lpc32xx_nand_slc.c |    0
 drivers/mtd/nand/{ => raw}/mxc_nand.c         |    0
 drivers/mtd/nand/{ => raw}/mxc_nand.h         |    0
 drivers/mtd/nand/{ => raw}/mxc_nand_spl.c     |    0
 drivers/mtd/nand/{ => raw}/mxs_nand.c         |    0
 drivers/mtd/nand/{ => raw}/mxs_nand_spl.c     |    0
 drivers/mtd/nand/{ => raw}/nand.c             |    0
 drivers/mtd/nand/{ => raw}/nand_base.c        |   56 --
 drivers/mtd/nand/{ => raw}/nand_bbt.c         |    0
 drivers/mtd/nand/{ => raw}/nand_bch.c         |    0
 drivers/mtd/nand/{ => raw}/nand_ecc.c         |    0
 drivers/mtd/nand/{ => raw}/nand_ids.c         |    0
 drivers/mtd/nand/{ => raw}/nand_plat.c        |    0
 drivers/mtd/nand/{ => raw}/nand_spl_load.c    |    0
 drivers/mtd/nand/{ => raw}/nand_spl_loaders.c |    0
 drivers/mtd/nand/{ => raw}/nand_spl_simple.c  |    0
 drivers/mtd/nand/{ => raw}/nand_timings.c     |    0
 drivers/mtd/nand/{ => raw}/nand_util.c        |    0
 drivers/mtd/nand/{ => raw}/ndfc.c             |    0
 drivers/mtd/nand/{ => raw}/omap_elm.c         |    0
 drivers/mtd/nand/{ => raw}/omap_gpmc.c        |    0
 drivers/mtd/nand/{ => raw}/pxa3xx_nand.c      |    0
 drivers/mtd/nand/{ => raw}/pxa3xx_nand.h      |    0
 drivers/mtd/nand/{ => raw}/sunxi_nand.c       |    0
 drivers/mtd/nand/{ => raw}/sunxi_nand_spl.c   |    0
 drivers/mtd/nand/{ => raw}/tegra_nand.c       |    0
 drivers/mtd/nand/{ => raw}/tegra_nand.h       |    0
 drivers/mtd/nand/{ => raw}/vf610_nfc.c        |    0
 drivers/mtd/nand/{ => raw}/zynq_nand.c        |    0
 drivers/mtd/nand/spi/Kconfig                  |    7 +
 drivers/mtd/nand/spi/Makefile                 |    4 +
 drivers/mtd/nand/spi/core.c                   | 1254 +++++++++++++++++++++++++
 drivers/mtd/nand/spi/macronix.c               |  146 +++
 drivers/mtd/nand/spi/micron.c                 |  135 +++
 drivers/mtd/nand/spi/winbond.c                |  143 +++
 drivers/mtd/onenand/onenand_base.c            |   60 --
 drivers/spi/Kconfig                           |    7 +
 drivers/spi/Makefile                          |    1 +
 drivers/spi/spi-mem.c                         |  500 ++++++++++
 include/linux/mtd/mtd.h                       |   33 +-
 include/linux/mtd/nand.h                      |  734 +++++++++++++++
 include/linux/mtd/spinand.h                   |  432 +++++++++
 include/spi-mem.h                             |  258 +++++
 include/spi.h                                 |   11 +
 79 files changed, 4795 insertions(+), 455 deletions(-)
 create mode 100644 cmd/mtd.c
 create mode 100644 doc/device-tree-bindings/mtd/spi-nand.txt
 create mode 100644 drivers/mtd/nand/bbt.c
 create mode 100644 drivers/mtd/nand/core.c
 create mode 100644 drivers/mtd/nand/raw/Kconfig
 create mode 100644 drivers/mtd/nand/raw/Makefile
 rename drivers/mtd/nand/{ => raw}/am335x_spl_bch.c (100%)
 rename drivers/mtd/nand/{ => raw}/arasan_nfc.c (100%)
 rename drivers/mtd/nand/{ => raw}/atmel_nand.c (100%)
 rename drivers/mtd/nand/{ => raw}/atmel_nand_ecc.h (100%)
 rename drivers/mtd/nand/{ => raw}/davinci_nand.c (100%)
 rename drivers/mtd/nand/{ => raw}/denali.c (100%)
 rename drivers/mtd/nand/{ => raw}/denali.h (100%)
 rename drivers/mtd/nand/{ => raw}/denali_dt.c (100%)
 rename drivers/mtd/nand/{ => raw}/denali_spl.c (100%)
 rename drivers/mtd/nand/{ => raw}/fsl_elbc_nand.c (100%)
 rename drivers/mtd/nand/{ => raw}/fsl_elbc_spl.c (100%)
 rename drivers/mtd/nand/{ => raw}/fsl_ifc_nand.c (100%)
 rename drivers/mtd/nand/{ => raw}/fsl_ifc_spl.c (100%)
 rename drivers/mtd/nand/{ => raw}/fsl_upm.c (100%)
 rename drivers/mtd/nand/{ => raw}/fsmc_nand.c (100%)
 rename drivers/mtd/nand/{ => raw}/kb9202_nand.c (100%)
 rename drivers/mtd/nand/{ => raw}/kirkwood_nand.c (100%)
 rename drivers/mtd/nand/{ => raw}/kmeter1_nand.c (100%)
 rename drivers/mtd/nand/{ => raw}/lpc32xx_nand_mlc.c (100%)
 rename drivers/mtd/nand/{ => raw}/lpc32xx_nand_slc.c (100%)
 rename drivers/mtd/nand/{ => raw}/mxc_nand.c (100%)
 rename drivers/mtd/nand/{ => raw}/mxc_nand.h (100%)
 rename drivers/mtd/nand/{ => raw}/mxc_nand_spl.c (100%)
 rename drivers/mtd/nand/{ => raw}/mxs_nand.c (100%)
 rename drivers/mtd/nand/{ => raw}/mxs_nand_spl.c (100%)
 rename drivers/mtd/nand/{ => raw}/nand.c (100%)
 rename drivers/mtd/nand/{ => raw}/nand_base.c (98%)
 rename drivers/mtd/nand/{ => raw}/nand_bbt.c (100%)
 rename drivers/mtd/nand/{ => raw}/nand_bch.c (100%)
 rename drivers/mtd/nand/{ => raw}/nand_ecc.c (100%)
 rename drivers/mtd/nand/{ => raw}/nand_ids.c (100%)
 rename drivers/mtd/nand/{ => raw}/nand_plat.c (100%)
 rename drivers/mtd/nand/{ => raw}/nand_spl_load.c (100%)
 rename drivers/mtd/nand/{ => raw}/nand_spl_loaders.c (100%)
 rename drivers/mtd/nand/{ => raw}/nand_spl_simple.c (100%)
 rename drivers/mtd/nand/{ => raw}/nand_timings.c (100%)
 rename drivers/mtd/nand/{ => raw}/nand_util.c (100%)
 rename drivers/mtd/nand/{ => raw}/ndfc.c (100%)
 rename drivers/mtd/nand/{ => raw}/omap_elm.c (100%)
 rename drivers/mtd/nand/{ => raw}/omap_gpmc.c (100%)
 rename drivers/mtd/nand/{ => raw}/pxa3xx_nand.c (100%)
 rename drivers/mtd/nand/{ => raw}/pxa3xx_nand.h (100%)
 rename drivers/mtd/nand/{ => raw}/sunxi_nand.c (100%)
 rename drivers/mtd/nand/{ => raw}/sunxi_nand_spl.c (100%)
 rename drivers/mtd/nand/{ => raw}/tegra_nand.c (100%)
 rename drivers/mtd/nand/{ => raw}/tegra_nand.h (100%)
 rename drivers/mtd/nand/{ => raw}/vf610_nfc.c (100%)
 rename drivers/mtd/nand/{ => raw}/zynq_nand.c (100%)
 create mode 100644 drivers/mtd/nand/spi/Kconfig
 create mode 100644 drivers/mtd/nand/spi/Makefile
 create mode 100644 drivers/mtd/nand/spi/core.c
 create mode 100644 drivers/mtd/nand/spi/macronix.c
 create mode 100644 drivers/mtd/nand/spi/micron.c
 create mode 100644 drivers/mtd/nand/spi/winbond.c
 create mode 100644 drivers/spi/spi-mem.c
 create mode 100644 include/linux/mtd/nand.h
 create mode 100644 include/linux/mtd/spinand.h
 create mode 100644 include/spi-mem.h