Re: [PATCH] ARM: davinci: da850-evm: fix read access to SPI flash

From	Sekhar Nori <nsekhar@ti.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH] ARM: davinci: da850-evm: fix read access to SPI flash
Date	2017-01-18 11:10 +0100
Message-ID	<t0VlM-2Ex-11@gated-at.bofh.it> (permalink)
References	<t0BwJ-7cW-11@gated-at.bofh.it> <t0Miu-5tz-9@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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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

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[PATCH] ARM: davinci: da850-evm: fix read access to SPI flash Fabien Parent <fparent@baylibre.com> - 2017-01-17 14:00 +0100
  Re: [PATCH] ARM: davinci: da850-evm: fix read access to SPI flash Kevin Hilman <khilman@baylibre.com> - 2017-01-18 01:30 +0100
    Re: [PATCH] ARM: davinci: da850-evm: fix read access to SPI flash Sekhar Nori <nsekhar@ti.com> - 2017-01-18 11:10 +0100

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