On Wed, Jul 1, 2015 at 5:57 PM, Jaehoon Chung <jh80.chung@xxxxxxxxxxx> wrote: > Hi, > > Is sdhost based on SDHCI controller? > Why don't use sdhci.c? Is there any reason? > > Best Regards, > Jaehoon Chung > Because of base64 code problem of his email server, I'm reporting his reply instead. >From Billows Wu <billows.wu@xxxxxxxxxxxxxx> ---------------------------------------------------------------------------------------------------------------------------------------- Hi Jaehoon, Sdhost driver is not based on SDHCI controller. Our MMC controller is not a standard controller which meets host controller specification completely. We add some registers and change some bits in the remaining register, such as about clock and regulator portion. If our driver base on SDHCI controller, we must change many codes in sdhci.c, and our MMC driver will become more complicated. In order to better use our controller capability and make MMC driver more compact, we do not use SDHCI controller. Thanks. -------------------------------------------------------------------------------------------------------------------------------------------------- -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
