[U-Boot] [PATCH v3 0/4] mmc: sdhci: Add support for frequency constrained peripheral interfaces

[Jaehoon Chung]

On 12/07/2016 08:47 PM, Stefan.Herbrechtsmeier at weidmueller.de wrote:
> Hi,
> 
>> -----Ursprüngliche Nachricht-----
>> Von: Jaehoon Chung [mailto:jh80.chung at samsung.com]
>>
>> On 12/02/2016 10:24 PM, stefan.herbrechtsmeier at weidmueller.de wrote:
>>> From: Stefan Herbrechtsmeier <stefan.herbrechtsmeier at weidmueller.de>
>>>
>>>
>>> The sdhci controller assumes that the base clock frequency is fully
>>> supported by the peripheral and doesn't support hardware limitations.
>>> Distinguish between base clock of the host controller and maximal
>>> supported peripheral clock frequency of the peripheral interface.
>>> This is needed for the zynq platform to support two sdhci ports with
>>> different IO routings.
>>
>> I understood what your purpose is...When i checked your patch, i wonder
>> one thing about dwmmc controller.
>> There is also using dwmci_setup_cfg() and it is assigned to cfg-
>>> f_min/max with max_clk/min_clk.
>>
>> I think it also needs to take your approach, right?
> The driver already use a different source clock (host->bus_hz / host->get_mmc_clk) for the calculation in its own set_ios / dwmmi_setup_bus function.
> 
>> do you have any plan for dwmmc controller?
> No, because it is only a local cosmetic rename and shouldn't be affected by my changes.

Yes, If it needs to change, i will do. :)

Best Regards,
Jaehoon Chung

> 
> Regards
>   Stefan
> 
> 
> 
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