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

[Jaehoon Chung]

Hi Ziyuan,

On 05/16/2017 10:15 AM, Ziyuan wrote:
> 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?

I didn't review both yet..After checking, i will share my opinion. how about?

> 
>>
>> Regards,
>> Simon
>>
>>
>>
> 
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