From mboxrd@z Thu Jan  1 00:00:00 1970
From: Marek Vasut <marex@denx.de>
Subject: Re: [PATCH 00/11] Enable access to SPI NOR flash on Samsung Snow board
Date: Thu, 4 Jun 2015 00:53:29 +0200
Message-ID: <201506040053.29482.marex@denx.de>
References: <cover.1433364398.git.hramrach@gmail.com>
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To: Michal Suchanek <hramrach@gmail.com>
Cc: Rob Herring <robh+dt@kernel.org>, Pawel Moll <pawel.moll@arm.com>, Mark Rutland <mark.rutland@arm.com>, Ian Campbell <ijc+devicetree@hellion.org.uk>, Kumar Gala <galak@codeaurora.org>, Russell King <linux@arm.linux.org.uk>, Kukjin Kim <kgene@kernel.org>, Krzysztof Kozlowski <k.kozlowski@samsung.com>, Vinod Koul <vinod.koul@intel.com>, Dan Williams <dan.j.williams@intel.com>, David Woodhouse <dwmw2@infradead.org>, Brian Norris <computersforpeace@gmail.com>, Han Xu <han.xu@freescale.com>, Mark Brown <broonie@kernel.org>, Geert Uytterhoeven <geert+renesas@glider.be>,  =?utf-8?q?Rafa=C5=82?= =?utf-8?q?_Mi=C5=82ecki?= <zajec5@gmail.com>, Alison Chaiken <alison_chaiken@mentor.com>, Huang Shijie <b32955@freescale.com>, Ben Hutchings <ben@decadent.org.uk>, Knut Wohlrab <knut.wohlrab@de.bosch.com>, "Bean Huo =?utf-8?q?=E9=9C=8D=E6=96=8C=E6=96=8C?= (beanhuo)" <beanhuo@>
List-Id: devicetree@vger.kernel.org

On Wednesday, June 03, 2015 at 11:26:39 PM, Michal Suchanek wrote:
> Hello,

Hi,

> this patch series makes it possible to access the SPI NOR flash in the
> Samsung XE303 'Snow' Chromebook.
> 
> Unfortunately not all issues are resolved. To work around an issue with the
> pl330 dma engine I respun the patch for limiting transfer size in m25p80
> driver.

Looks like fixing a bug at the wrong place to me ...

> As the flash does not contain any sane filesystem and is only likely to be
> accessed with mtd_debug or similar tool the limit of the dma engine is
> easily reached. Filesystems using shorter data transfers are less likely
> to be affected.

Sounds like the DMA engine driver should be fixed.

Best regards,
Marek Vasut