[PATCH v2 0/9] mmc: sdhci-esdhc-imx: add SD3.0 support
Chris Ball
cjb at laptop.org
Wed Sep 25 22:01:52 EDT 2013
Hi Shawn, Sascha,
On Fri, Sep 13 2013, Dong Aisheng wrote:
> This patch series add SD3.0 support for i.MX6Q/DL.
> Since freescale i.MX6Q/DL uSDHC clock tuning progress is a little different from
> the standard tuning process defined in host controller spec v3.0.
> So we add a hook to allow execute platform specific tuning instead of
> standard host controller tuning.
>
> The main difference are:
> 1) not only generate Buffer Read Ready interrupt when tuning is performing.
> It generates all other DATA interrupts like the normal data command.
> 2) SDHCI_CTRL_EXEC_TUNING is not automatically cleared by HW,
> instead it's controlled by SW.
> 3) SDHCI_CTRL_TUNED_CLK is not automatically set by HW,
> it's controlled by SW.
> 4) the clock delay for every tuning is set by SW.
>
> Tested on i.MX6Q Sabreauto board.
Please could someone ACK this series? Thanks,
- Chris.
--
Chris Ball <cjb at laptop.org> <http://printf.net/>
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