> From: Ulf Hansson [mailto:ulf.hans...@linaro.org]
> >>> Sent: Friday, August 15, 2014 4:34 PM
> >>> To: Dong, Chuanxiao
> >>> Cc: linux-mmc; ch...@printf.org
> >>> Subject: Re: [PATCH v3] mmc: core: try 1.8v signling in ddr mode if
> >>>
Dong, Chuanxiao
>>> Cc: linux-mmc; ch...@printf.org
>>> Subject: Re: [PATCH v3] mmc: core: try 1.8v signling in ddr mode if host and
>>> device
>>>
>>> On 15 August 2014 05:28, Chuanxiao Dong
>>> wrote:
>>> > Even (e)MMC card can su
2014-08-15 10:36 GMT+02:00 Dong, Chuanxiao :
>
>
>> -Original Message-
>> From: Ulf Hansson [mailto:ulf.hans...@linaro.org]
>> Sent: Friday, August 15, 2014 4:34 PM
>> To: Dong, Chuanxiao
>> Cc: linux-mmc; ch...@printf.org
>> Subject: Re: [PATCH v3
> -Original Message-
> From: Ulf Hansson [mailto:ulf.hans...@linaro.org]
> Sent: Friday, August 15, 2014 4:34 PM
> To: Dong, Chuanxiao
> Cc: linux-mmc; ch...@printf.org
> Subject: Re: [PATCH v3] mmc: core: try 1.8v signling in ddr mode if host and
> device
>
&
On 15 August 2014 05:28, Chuanxiao Dong wrote:
> Even (e)MMC card can support 3.3v to 1.2v vccq in DDR, but not all
> host controller can support this, like some of the SDHCI host
> which connect to an eMMC device. Some of these host controller
> still needs to use 1.8v vccq for supporting DDR mod
