Re: [PATCH] sdhci: allow for eMMC 74 clock generation by controller

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Hi,

>    Patch attached.  We are in a chicken and egg situation.   The controller
>    needs data to cause the clock to start and the first command sent by the
>    mmc layer is CMD0 -- mmc_go_idle().  This is sent without the  eMMC chip
>    seeing the 74 clocks but since there are NOW clocks the chip see's this.
>     It is not able to parse the command and we are struck.

Okay, and some host->ops->generate_initial_74_clocks() could help you
out, it seems. If it is a controller specific issue, the approach seems
in general sensible to me, unless I am missing some details.

Regards,

   Wolfram

-- 
Pengutronix e.K.                           | Wolfram Sang                |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |

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