From: Sekhar Nori <nsekhar@ti.com>
To: Kevin Hilman <khilman@baylibre.com>,
Fabien Parent <fparent@baylibre.com>
Cc: mark.rutland@arm.com, devicetree@vger.kernel.org,
robh+dt@kernel.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH] ARM: davinci: da850-evm: fix read access to SPI flash
Date: Wed, 18 Jan 2017 15:28:21 +0530 [thread overview]
Message-ID: <b349792e-0465-acac-5fe9-e9b4ae666ce7@ti.com> (raw)
In-Reply-To: <m237gh2ozw.fsf@baylibre.com>
On Wednesday 18 January 2017 05:55 AM, Kevin Hilman wrote:
> Fabien Parent <fparent@baylibre.com> writes:
>
>> Read access to the SPI flash are broken on da850-evm, i.e. the data
>> read is not what is actually programmed on the flash.
>> According to the datasheet for the M25P64 part present on the da850-evm,
>> if the SPI frequency is higher than 20MHz then the READ command is not
>> usable anymore and only the FAST_READ command can be used to read data.
>>
>> This commit specifies in the DTS that we should use FAST_READ command
>> instead of the READ command.
>>
>> Signed-off-by: Fabien Parent <fparent@baylibre.com>
>
> Tested on da850-evm on top of v4.10-rc3. This gets the DT boot
> functionatliy in line with the legacy (board-file) boot.
>
> Tested-by: Kevin Hilman <khilman@baylibre.com>
Applied with Kevin's Tested-by and also marked for stable. Sending pull
request for v4.10-rc shortly.
Thanks,
Sekhar
prev parent reply other threads:[~2017-01-18 9:58 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-17 12:57 [PATCH] ARM: davinci: da850-evm: fix read access to SPI flash Fabien Parent
[not found] ` <20170117125742.9536-1-fparent-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>
2017-01-18 0:25 ` Kevin Hilman
2017-01-18 9:58 ` Sekhar Nori [this message]
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