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From: gregory.clement@free-electrons.com (Gregory CLEMENT)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v4 1/2] mtd: nand: pxa3xx: Fix PIO FIFO draining
Date: Mon, 02 Mar 2015 17:52:35 +0100	[thread overview]
Message-ID: <54F49553.2020307@free-electrons.com> (raw)
In-Reply-To: <20150228090122.GA11148@brian-ubuntu>

On 28/02/2015 10:01, Brian Norris wrote:
> On Wed, Feb 18, 2015 at 11:32:07AM +0100, Maxime Ripard wrote:
>> The NDDB register holds the data that are needed by the read and write
>> commands.
>>
>> However, during a read PIO access, the datasheet specifies that after each 32
>> bytes read in that register, when BCH is enabled, we have to make sure that the
>> RDDREQ bit is set in the NDSR register.
>>
>> This fixes an issue that was seen on the Armada 385, and presumably other mvebu
>> SoCs, when a read on a newly erased page would end up in the driver reporting a
>> timeout from the NAND.
>>
>> Cc: <stable@vger.kernel.org> # v3.14
>> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
> 
> Pushed this one to linux-mtd.git. I'll try to get it out in the 4.0
> cycle. I assume patch 2 (the DT addition) will go through arm-soc.

Yes, now that you took the driver part,  I will apply it on mvebu and then push it
to arm-soc.

Thanks,

Gregory


> 
> Brian
> 


-- 
Gregory Clement, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com

  reply	other threads:[~2015-03-02 16:52 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-02-18 10:32 [PATCH v4 0/2] ARM: mvebu: a385-db-ap: Enable the NAND controller Maxime Ripard
2015-02-18 10:32 ` [PATCH v4 1/2] mtd: nand: pxa3xx: Fix PIO FIFO draining Maxime Ripard
2015-02-18 12:52   ` Boris Brezillon
2015-02-18 13:40   ` Ezequiel Garcia
2015-02-18 14:01     ` Maxime Ripard
2015-02-18 14:06       ` Ezequiel Garcia
2015-02-28  9:01   ` Brian Norris
2015-03-02 16:52     ` Gregory CLEMENT [this message]
2015-02-18 10:32 ` [PATCH v4 2/2] ARM: mvebu: a385-db-ap: Enable the NAND Maxime Ripard
2015-03-03  8:10   ` Gregory CLEMENT
2015-03-03  9:57     ` Maxime Ripard

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