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From: Chris Morgan <macroalpha82@gmail.com>
To: u-boot@lists.denx.de
Cc: jagan@amarulasolutions.com, marek.behun@nic.cz,
	xypron.glpk@gmx.de, miquel.raynal@bootlin.com, sjg@chromium.org,
	patrice.chotard@foss.st.com, farhan.ali@broadcom.com,
	Chris Morgan <macromorgan@hotmail.com>
Subject: [RFCv3 0/3] mtd: Support slc-mode for NTC CHIP
Date: Wed, 29 Sep 2021 10:09:46 -0500	[thread overview]
Message-ID: <20210929150949.198-1-macroalpha82@gmail.com> (raw)

From: Chris Morgan <macromorgan@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@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(-)

-- 
2.30.2


             reply	other threads:[~2021-09-29 15:10 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-29 15:09 Chris Morgan [this message]
2021-09-29 15:09 ` [RFCv3 1/3] mtd: Add support for Linux slc-mode for MLC NAND Chris Morgan
2021-09-29 15:09 ` [RFCv3 2/3] mtd: Add pairing info for Toshiba TC58TEG5DCLTA00 NAND Chris Morgan
2021-09-29 15:09 ` [RFCv3 3/3] mtd: Add pairing info for Hynix H27UCG8T2ETR NAND Chris Morgan

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