Date: Sat, 28 Feb 2015 01:01:22 -0800
From: Brian Norris <computersforpeace@gmail.com>
To: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Gregory Clement <gregory.clement@free-electrons.com>,
        Jason Cooper <jason@lakedaemon.net>, Andrew Lunn <andrew@lunn.ch>,
        Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>,
        Ezequiel Garcia <ezequiel.garcia@free-electrons.com>,
        linux-mtd@lists.infradead.org,
        Boris Brezillon <boris@free-electrons.com>,
        Thomas Petazzoni <thomas@free-electrons.com>,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        Tawfik Bayouk <tawfik@marvell.com>, Nadav Haklai <nadavh@marvell.com>,
        Lior Amsalem <alior@marvell.com>,
        Sudhakar Gundubogula <sudhakar@marvell.com>,
        Seif Mazareeb <seif@marvell.com>, stable@vger.kernel.org
Subject: Re: [PATCH v4 1/2] mtd: nand: pxa3xx: Fix PIO FIFO draining
Message-ID: <20150228090122.GA11148@brian-ubuntu>
References: <1424255528-1717-1-git-send-email-maxime.ripard@free-electrons.com>
 <1424255528-1717-2-git-send-email-maxime.ripard@free-electrons.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <1424255528-1717-2-git-send-email-maxime.ripard@free-electrons.com>
User-Agent: Mutt/1.5.23 (2014-03-12)
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 1043
Lines: 24

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.

Brian
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/