linux-kernel - [PATCH 0/4] mtd: nand: Add support for Evatronix NANDFLASH-CTRL

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Date:	Thu, 2 Jun 2016 09:46:31 +0200
From:	Ricard Wanderlof <ricard.wanderlof@...s.com>
To:	Brian Norris <computersforpeace@...il.com>,
	David Woodhouse <dwmw2@...radead.org>,
	Benoit Cousson <bcousson@...libre.com>,
	Tony Lindgren <tony@...mide.com>,
	David Woodhouse <dwmw2@...radead.org>
CC:	Linux mtd <linux-mtd@...ts.infradead.org>,
	<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH 0/4] mtd: nand: Add support for Evatronix NANDFLASH-CTRL 

This patch set adds a driver and relevant devicetree bindings for the
Evatronix NANDFLASH-CTRL NAND flash controller IP. This controller is
used in the Axis ARTPEC-6 SoC.

The driver supports BCH ECC using the controller's hardware, but there is
also an option to use software BCH ECC. However, the ECC layouts are not
compatible so it's not possible to mix them. The main advantage to using
software ECC is that there are more OOB bytes free, as the hardware is
slightly wasteful on OOB space.

BCH ECC from 4 to 32 bits over 256, 512 or 1024 byte ECC blocks is supported.

Only large-page flash chips are supported, using 4 or 5 address cycles.

The driver has been extensively tested using hardware ECC on 2 Mbit flash chips,
with 8 bit ECC over 512 bytes ECC blocks.

Ricard Wanderlof (4):
  of: Add device tree bindings for Evatronix NANDFLASH-CTRL
  dts: Add Evatronix NAND flash driver to ARTPEC-6 dtsi
  mtd: nand: Add support for Evatronix NANDFLASH-CTRL
  MAINTAINERS: mtd: Add maintainer for Evatronix NAND flash driver

 .../devicetree/bindings/mtd/evatronix-nand.txt     |   44 +
 .../devicetree/bindings/vendor-prefixes.txt        |    1 +
 MAINTAINERS                                        |    6 +
 arch/arm/boot/dts/artpec6.dtsi                     |   19 +
 drivers/mtd/nand/Kconfig                           |    6 +
 drivers/mtd/nand/Makefile                          |    1 +
 drivers/mtd/nand/evatronix_nand.c                  | 1909 ++++++++++++++++++++
 7 files changed, 1986 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mtd/evatronix-nand.txt
 create mode 100644 drivers/mtd/nand/evatronix_nand.c

-- 
1.7.10.4

-- 
Ricard Wolf Wanderlöf                           ricardw(at)axis.com
Axis Communications AB, Lund, Sweden            www.axis.com
Phone +46 46 272 2016                           Fax +46 46 13 61 30