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

[Ziyuan]

hi Jaehoon,

On 05/16/2017 09:55 AM, Jaehoon Chung wrote:
> 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?

*ping*...
Did you test this patchset on Samsung platform? As far as I know, 
Samsung SoCs also make use of dw_mmc and sdhci controllers.

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