linux-kernel - Re: [PATCH v2] mtd: davinci-nand: disable subpage write for keystone-nand

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Date:	Wed, 16 Apr 2014 10:03:13 -0400
From:	Santosh Shilimkar <santosh.shilimkar@...com>
To:	Ivan Khoronzhuk <ivan.khoronzhuk@...com>,
	Brian Norris <computersforpeace@...il.com>
CC:	<dwmw2@...radead.org>, <galak@...eaurora.org>,
	<robh+dt@...nel.org>, <pawel.moll@....com>, <mark.rutland@....com>,
	<ijc+devicetree@...lion.org.uk>, <rob@...dley.net>,
	<linux@....linux.org.uk>, <grygorii.strashko@...com>,
	<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-mtd@...ts.infradead.org>, <m-karicheri2@...com>,
	Warner Losh <imp@...imp.com>
Subject: Re: [PATCH v2] mtd: davinci-nand: disable subpage write for keystone-nand

On Wednesday 16 April 2014 05:47 AM, Ivan Khoronzhuk wrote:
> 
> On 04/16/2014 10:08 AM, Brian Norris wrote:
>> On Tue, Apr 08, 2014 at 03:51:34PM +0300, Ivan Khoronzhuk wrote:
>>> On 03/20/2014 10:14 PM, Santosh Shilimkar wrote:
>>>> On Thursday 20 March 2014 04:08 PM, Ivan Khoronzhuk wrote:
>>>>> From: Murali Karicheri <m-karicheri2@...com>
>>>>> Sub page write doesn't work because of hw issue in controller found on
>>>>> Keystone SOCs. AEMIF controller is also used on DaVinci SOCs which
>>>>> don't seems to have any issue. So add "ti,keysone-nand" compatible
>>>>> to nand driver in order to set NAND_NO_SUBPAGE_WRITE option.
>>>>>
>>>>> Cc: Brian Norris <computersforpeace@...il.com>
>>>>> Cc: Warner Losh <imp@...imp.com>
>>>>> Cc: Santosh Shilimkar <santosh.shilimkar@...com>
>>>>>
>>>>> Signed-off-by: Murali Karicheri <m-karicheri2@...com>
>>>>> Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@...com>
>>>>> ---
>>>>>
>>>> Acked-by: Santosh Shilimkar <santosh.shilimkar@...com>
>>> Brian,
>>> Could you pick up subj patch?
>> Pushed to l2-mtd.git. Is it critical this goes in for 3.15? It's
>> currently queued for -next (3.16).
>>
>> Brian
> 
> This is a critical fix and it should be for 3.15.
Yep. The NAND is broken on Keystone without this patch.
So 3.15 fixes please

Regards,
Santosh

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