[RFCv3 0/3] mtd: Support slc-mode for NTC CHIP

[Chris Morgan]

From: Chris Morgan <macromorgan at hotmail.com>

Add support for slc-mode implemented in Linux for the Toshiba
TC58TEG5DCLTA00 NAND and Hynix H27UCG8T2ETR NAND flash found on the NTC
CHIP. This requires the addition of a paired-pages scheme, a new
parameter for MTD partitions of slc-mode, and setting the correct
paired-pages scheme for the TC58TEG5DCLTA00  and H27UCG8T2ETR flash
chips. I will likely need some help making sure this is consistent with
the quality expected of upstream.

Changes since V2:
 - Copied upstream Linux implementation of mtd_erase to fix an issue
   with creating new ubi partitions.
 - Implemented paired page scheme and added support for Hynix flash
   chip. Based on a cursory reading of the datasheet it appears to use
   the same pairing scheme as the Toshiba chip.

Changes since V1:

 - Updated mtd_read and mtd_write to match upstream Linux.
 - Additional mtd_get_master to match upstream Linux.
 - Removed notes about ubifs not working, because it is now.

Signed-off-by: Chris Morgan <macromorgan at hotmail.com>

Chris Morgan (4):
  mtd: Add support for Linux slc-mode for MLC NAND
  mtd: Add pairing info for Toshiba TC58TEG5DCLTA00 NAND
  mtd: Add pairing info for Hynix H27UCG8T2ETR NAND
  DO NOT UPSTREAM

 arch/arm/dts/sun5i-r8-chip.dts   |  39 +++
 drivers/mtd/mtdcore.c            | 564 ++++++++++++++++++++++++-------
 drivers/mtd/mtdcore.h            |   1 -
 drivers/mtd/mtdpart.c            |   7 +
 drivers/mtd/nand/raw/nand_base.c |  67 ++++
 include/configs/sunxi-common.h   |   2 +
 include/linux/mtd/mtd.h          | 190 ++++++++++-
 include/linux/mtd/partitions.h   |  24 +-
 include/mtd/mtd-abi.h            |   1 +
 9 files changed, 770 insertions(+), 125 deletions(-)

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2.30.2