linux-kernel - Re: [PATCH 1/3] drivers: mtd: spinand: Add generic spinand frameowrk and micron driver.

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Date:	Thu, 27 Jun 2013 10:21:21 +0530
From:	Sourav Poddar <sourav.poddar@...com>
To:	Kamlakant Patel <kamlakant.patel@...adcom.com>
CC:	<linux-mtd@...ts.infradead.org>,
	<spi-devel-general@...ts.sourceforge.net>, <broonie@...nel.org>,
	<dwmw2@...radead.org>, <manonuevo@...ron.com>,
	<tqnguyen@...ron.com>, <grant.likely@...aro.org>,
	<linux-omap@...r.kernel.org>, <rnayak@...com>,
	<linux-kernel@...r.kernel.org>, <balbi@...com>
Subject: Re: [PATCH 1/3] drivers: mtd: spinand: Add generic spinand frameowrk
 and micron driver.

Hi Kamlakant,
On Wednesday 26 June 2013 08:52 PM, Kamlakant Patel wrote:
> On Wed, Jun 26, 2013 at 01:11:10PM +0530, Sourav Poddar wrote:
>> From: Mona Anonuevo<manonuevo@...ron.com>
>>
>> This patch adds support for a generic spinand framework(spinand_mtd.c).
>> This frameowrk can be used for other spi based flash devices also. The idea
>> is to have a common model under drivers/mtd, as also present for other no spi
>> devices(there is a generic framework and device part simply attaches itself to it.)
>>
>> The generic frework will be used later by me for a SPI based spansion S25FL256 device.
>> The patch also contains a micron driver attaching itself to generic framework.
>>
>> Signed-off-by: Mona Anonuevo<manonuevo@...ron.com>
>> Signed-off-by: Tuan Nguyen<tqnguyen@...ron.com>
>> Signed-off-by: Sourav Poddar<sourav.poddar@...com>
>> ----
>> [I picked this as a standalone patch, can split it into generic and device part
>> based on community feedback.]
>>
>>   drivers/mtd/Kconfig               |    2 +
>>   drivers/mtd/Makefile              |    2 +
>>   drivers/mtd/spinand/Kconfig       |   24 ++
>>   drivers/mtd/spinand/Makefile      |   10 +
>>   drivers/mtd/spinand/spinand_lld.c |  776 +++++++++++++++++++++++++++++++++++++
>>   drivers/mtd/spinand/spinand_mtd.c |  690 +++++++++++++++++++++++++++++++++
>>   include/linux/mtd/spinand.h       |  155 ++++++++
>>   7 files changed, 1659 insertions(+), 0 deletions(-)
>>   create mode 100644 drivers/mtd/spinand/Kconfig
>>   create mode 100644 drivers/mtd/spinand/Makefile
>>   create mode 100644 drivers/mtd/spinand/spinand_lld.c
>>   create mode 100644 drivers/mtd/spinand/spinand_mtd.c
>>   create mode 100644 include/linux/mtd/spinand.h
>>
> I am working on Micron SPINAND(Micron MT29F1G01ZACH). I tried this patch, but it's not working.
> It is throwing following error message while mounting:
> [  260.232000] jffs2: cannot read OOB for EB at 00000000, requested 8 bytes, read 0 bytes, error -22
> mount: mounting /dev/mtdblock5 on /mnt/ failed: Input/output error
>
> I am working on it to fix into the driver, will send an updated patch with the fix.
>
Thanks for replying on this.
Since, this patch is already posted, I think it will be better if you post
the delta fix on top of this patch.
> Thanks,
> Kamlakant Patel
>

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