[U-Boot] [PATCH 01/33] mmc: select the available type from host_caps and card_caps

[Ziyuan]

hi Simon & Jaehoon,

On 05/16/2017 08:18 AM, Simon Glass wrote:
> Hi Ziyuan,
>
> On 15 May 2017 at 00:06, Ziyuan Xu <xzy.xu at rock-chips.com> wrote:
>> The original implementation select HS timing by default, add available
>> type selection for higher speed mode compatibility, such as hs200,
>> hs400, hs400es.
>>
>> By the way, we assume that card run at 1.8V or 1.2V I/O when its timing
>> is ddr52/hs200/hs400(es).
>>
>> Signed-off-by: Ziyuan Xu <xzy.xu at rock-chips.com>
>> ---
>>
>>   drivers/mmc/mmc.c | 59 ++++++++++++++++++++++++++++++++++++++++++++++++++++++-
>>   include/mmc.h     | 16 +++++++++++++++
>>   2 files changed, 74 insertions(+), 1 deletion(-)
>>
> Is there a cover letter for this series, please?

This patchset is used for hs200/hs400/ddr52 mode of eMMC device, and 
fixes some bug for dw_mmc & sdhci controller.
It's only valid in U-Boot stage, we still use 'High Speed' in SPL.

I tested it on evb-rk3288 board(eMMC 4.5) and evb-rk3388 board(eMMC 5.0).
>
> I just reviewed an MMC series at add higher speed support. I'm not
> sure but I suspect these overlap.

Ha, I just reviewed Vignesh's patches, it focuses on uhs mode of sd 
card. It looks to me.
But some details are not the same as mine. Anyway, what do you think?

>
> Regards,
> Simon
>
>
>