linux-kernel - [RFC 0/2] mtd: spi-nor: Cadence QSPI Flash Controller driver

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Date:	Fri, 24 Oct 2014 13:34:19 -0500
From:	Graham Moore <grmoore@...nsource.altera.com>
To:	<linux-mtd@...ts.infradead.org>
CC:	David Woodhouse <dwmw2@...radead.org>,
	Brian Norris <computersforpeace@...il.com>,
	<linux-kernel@...r.kernel.org>,
	Alan Tull <atull@...nsource.altera.com>,
	Dinh Nguyen <dinguyen@...nsource.altera.com>,
	Yves Vandervennet <yvanderv@...nsource.altera.com>,
	Graham Moore <grmoore@...nsource.altera.com>
Subject: [RFC 0/2] mtd: spi-nor: Cadence QSPI Flash Controller driver

Hi all,

Here is a kernel driver for the Cadence QSPI Flash Controller driver
which uses the spi-nor framework.  I'm putting it out here for 
comments.

Here at Altera, we use the Cadence QSPI in our SoCFPGA systems.  We've had
a spi driver for this IP for some time now, but it needed some patches
in the spi subsystem. and so was going to be difficult to upstream.

I ported it over to the spi-nor framework which got rid of the ugly
patches, and also got rid of a bunch of spi_transfer code.

It's based on the master branch of l2-mtd.git.  Tested on Altera's
Cyclone5 dev kit.

So here it is, let me know what you all think, please.

Thanks,
Graham Moore

Graham Moore (2):
  This is the documentation of the device tree bindings for the    
    Cadence QSPI Flash Controller driver.
  This is a kernel driver for the Cadence QSPI Flash     Controller. 
    It uses the spi-nor framework.

 .../devicetree/bindings/mtd/cadence_quadspi.txt    |   30 +
 drivers/mtd/spi-nor/Kconfig                        |    6 +
 drivers/mtd/spi-nor/Makefile                       |    1 +
 drivers/mtd/spi-nor/cadence-quadspi.c              | 1349 ++++++++++++++++++++
 4 files changed, 1386 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mtd/cadence_quadspi.txt
 create mode 100644 drivers/mtd/spi-nor/cadence-quadspi.c

-- 
1.7.9.5

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