Adding esdhc4 eMMC support on mx6sabresd

[Fabio Estevam]

On Thu, May 8, 2014 at 7:17 AM, Dong Aisheng <b29396 at freescale.com> wrote:

> I'm not very sure about HYS bit, but it should not be pad setting issue.
> This pad setting was tested ok with FSL internal tree.
>
> I just tested an old Chris/mmc-next tree which is 3.14 rc2 with the top commit is b42b9b.
> The eMMC works well on SabreSD boards.
> But it failed and got the same issue with latest chris/mmc-next tree.
> I noticed there's no changes on sdhci-esdhc-imx.c
> Probably some other changes breaks this function.
>
> Fabio,
> You may bisect it yourself or i will do it later when i'm a bit free.

Ok, I have just tested with Shawn's branch and the mmc error does not
happen, so it must be something in linux-next that causes the issue.

Will submit the dts change.

Regards,

Fabio Estevam