[PATCH 00/11] Introduction to SPI NAND framework

Peter Pan
2017-02-21T07:49:53Z

This serie introductes a SPI NAND framework.
SPI NAND is a new NAND family device with SPI protocol as
its interface. And its command set is totally different
with parallel NAND.

Our first attempt was more than 2 years ago[1]. At that
time, I didn't make BBT shareable and there were too many
duplicate code with parallel NAND, so that serie stoped.
But the discussion never stops. Now Boris has a plan to
make a generic NAND framework which can be shared with
both parallel and SPI NAND. Now the first step of the
new generic NAND framework is finished. And it is waiting
for a user. After discussion with Boris. We both think it's
time to rebuild SPI NAND framework based on the new NAND
framework and send out for reviewing.

This serie is based on Boris's nand/generic branch[2], which
is on 4.9-rc1. In this serie, BBT code is totally shared.
Of course SPI NAND can share more code with parallel, this
requires to put more in new NAND core (now only BBT included).
I'd like to send this serie out first, then we can decide
which part should be in new NAND core.

This serie only supports basic SPI NAND features and uses
generic spi controller for data transfer, on-die ECC for data
correction. Support advanced features and specific SPI NAND
controller with hardware ECC is the next step.

[1]http://lists.infradead.org/pipermail/linux-mtd/2015-January/057223.html
[2]https://github.com/bbrezillon/linux-0day/tree/nand/generic

Peter Pan (11):
nand: Add SPI NAND cmd set and register definition
nand: spi: create spi_nand_chip struct
nand: spi: Abstract SPI NAND cmd set to functions
nand: spi: Add read function support
nand: spi: Add write function support
nand: spi: Add erase function support
nand: spi: Add init/release function
nand: spi: Add bad block support
nand: spi: Add BBT support
nand: spi: Add generic SPI controller support
nand: spi: Add arguments check for read/write

drivers/mtd/nand/Kconfig | 1 +
drivers/mtd/nand/Makefile | 1 +
drivers/mtd/nand/spi/Kconfig | 7 +
drivers/mtd/nand/spi/Makefile | 3 +
drivers/mtd/nand/spi/chips/Kconfig | 5 +
drivers/mtd/nand/spi/chips/Makefile | 1 +
drivers/mtd/nand/spi/chips/generic_spi.c | 269 ++++++
drivers/mtd/nand/spi/spi-nand-base.c | 1537 ++++++++++++++++++++++++++++++
drivers/mtd/nand/spi/spi-nand-cmd.c | 69 ++
include/linux/mtd/spi-nand.h | 269 ++++++
10 files changed, 2162 insertions(+)
create mode 100644 drivers/mtd/nand/spi/Kconfig
create mode 100644 drivers/mtd/nand/spi/Makefile
create mode 100644 drivers/mtd/nand/spi/chips/Kconfig
create mode 100644 drivers/mtd/nand/spi/chips/Makefile
create mode 100644 drivers/mtd/nand/spi/chips/generic_spi.c
create mode 100644 drivers/mtd/nand/spi/spi-nand-base.c
create mode 100644 drivers/mtd/nand/spi/spi-nand-cmd.c
create mode 100644 include/linux/mtd/spi-nand.h

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1.9.1