[U-Boot] [PATCH] mmc: mx6qsabrelite: fsl_esdhc: Define maximum bus width supported by SabreLite board

Dirk Behme dirk.behme at de.bosch.com
Wed Apr 3 11:18:41 CEST 2013


On 03.04.2013 11:06, Stefano Babic wrote:
> On 21/03/2013 12:00, Abbas Raza wrote:
>> From: Abbas Raza <Abbas_Raza at mentor.com>
>>
>> Maximum bus width supported by SabreLite board is not 8bit like
>> all other mx6q specific boards. In case where both host controller
>> and card support 8bit transfers, they agree to communicate on 8bit
>> interface while boards like the SabreLite support only 4bit interface.
>> Due to this reason the mmc 8bit default mode fails on the SabreLite.
>> To rectify this, define maximum bus width supported by this board (4bit).
>> If max_bus_width is not defined, it is 0 by default and 8bit width support
>> will be enabled in host capabilities otherwise host capabilities are modified
>> accordingly.
>>
>> It is tested with a MMCplus card.
>>
>> Signed-off-by: Abbas Raza <Abbas_Raza at mentor.com>
>> cc: stefano Babic <sbabic at denx.de>
>> cc: Andy Fleming <afleming at gmail.com>
>> Acked-by: Dirk Behme <dirk.behme at de.bosch.com>
>> Acked-by: Andrew Gabbasov <andrew_gabbasov at mentor.com>
>> ---
> 
> Applied to u-boot-imx, thanks.
> 
> FYI: of course, I will merge the same fix for max_bus_width for
> Nitrogen6x and Wandboard if posted.

Have you noticed v2 of this patch

http://lists.denx.de/pipermail/u-boot/2013-March/150119.html

?

Best regards

Dirk


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