From: santosh.shilimkar@ti•com (Santosh Shilimkar)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH 2/3] mtd: davinci-nand: add dts property for NAND_NO_SUBPAGE_WRITE option
Date: Thu, 20 Mar 2014 14:02:39 -0400 [thread overview]
Message-ID: <532B2D3F.6050004@ti.com> (raw)
In-Reply-To: <D69011BE-C37F-4085-B992-45F6F32AF1D0@gmail.com>
On Thursday 20 March 2014 01:44 PM, Warner Losh wrote:
>
> On Mar 20, 2014, at 11:37 AM, Santosh Shilimkar <santosh.shilimkar@ti•com> wrote:
>
>>
>>
>> On Thursday 20 March 2014 01:29 PM, Brian Norris wrote:
>>> On Thu, Mar 20, 2014 at 01:12:35PM -0400, Santosh Shilimkar wrote:
>>>> Boris,
>>>
>>> Who's Boris? And why should Boris be taking this patch? It's an MTD
>>> patch.
>>>
>> I got your name completely wrong. Sorry....
>>
>>>> On Thursday 20 March 2014 01:06 PM, Ivan Khoronzhuk wrote:
>>>>> From: Murali Karicheri <m-karicheri2@ti•com>
>>>>>
>>>>> After testing NAND flash with ubifs for k2hk-emv board were committed
>>>>> that flash doesn't support subpage writing, so we can fix it by
>>>>> adding a property to disable subpage write.
>>>
>>> What flash? We try to autodetect NAND as much as possible. Perhaps we
>>> should be adding infrastructure support instead of hacking it with a DT
>>> property.
>>>
>> We can't auto detect it and thats why the DT approach was taken. We
>> will double check that.
>
> I though sub page writing was one of the fields in the onfi and/or jedec(toggle) meta data structures. Have you looked there?
>
Am not sure if I follow you. The limitation is from the TI NAND controller(AEMIF) and
not the NAND memory.
regards,
Santosh
next prev parent reply other threads:[~2014-03-20 18:02 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-20 17:06 [PATCH 0/3] Fix NAND propeties for k2hk-evm Ivan Khoronzhuk
2014-03-20 17:06 ` [PATCH 1/3] ARM: dts: k2hk-evm: set ubifs partition size for 512M NAND Ivan Khoronzhuk
2014-03-20 17:06 ` [PATCH 2/3] mtd: davinci-nand: add dts property for NAND_NO_SUBPAGE_WRITE option Ivan Khoronzhuk
2014-03-20 17:12 ` Santosh Shilimkar
2014-03-20 17:29 ` Brian Norris
2014-03-20 17:37 ` Santosh Shilimkar
2014-03-20 17:44 ` Warner Losh
2014-03-20 18:02 ` Santosh Shilimkar [this message]
2014-03-20 18:09 ` Warner Losh
2014-03-20 18:54 ` Brian Norris
2014-03-20 19:11 ` Santosh Shilimkar
2014-03-20 19:26 ` Ivan Khoronzhuk
2014-03-20 19:28 ` Santosh Shilimkar
2014-03-20 18:42 ` Brian Norris
2014-03-20 17:06 ` [PATCH 3/3] ARM: dts: k2hk-evm: disable subpage write for davinci nand device Ivan Khoronzhuk
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