[PATCH] mmc: sdhci: Write to HOST_CONTROL2 register for HS400 speed mode

Lokesh Vutla lokeshvutla at ti.com
Tue Jul 20 06:10:22 CEST 2021


+Tom

On 20/07/21 3:45 am, Jaehoon Chung wrote:
> Hi Aswath,
> 
> On 7/19/21 3:48 PM, Aswath Govindraju wrote:
>> Hi Peng,
>>
>> On 09/06/21 8:56 pm, Aswath Govindraju wrote:
>>> Hi Peng,
>>>
>>> On 10/05/21 7:18 pm, Aswath Govindraju wrote:
>>>> Hi Peng,
>>>>
>>>> On 07/04/21 3:52 am, Jaehoon Chung wrote:
>>>>> On 4/5/21 11:44 PM, Aswath Govindraju wrote:
>>>>>> From: Faiz Abbas <faiz_abbas at ti.com>
>>>>>>
>>>>>> Enable HS400 speed mode by writing to HOST_CONTROL2 register.
>>>>>>
>>>>>> Signed-off-by: Faiz Abbas <faiz_abbas at ti.com>
>>>>>> Signed-off-by: Aswath Govindraju <a-govindraju at ti.com>
>>>>>
>>>>> Reviewed-by: Jaehoon Chung <jh80.chung at samsung.com>
>>>>>
>>>>
>>>> Can you please pick this patch if there are no comments.
>>>>
>>>
>>> May I know if this okay to be merged ?
>>>
>>
>> A gentle reminder on this patch. This patch has other dependencies that
>> and are pending merge[1][2].
> 
> I don't have the permission to merge on u-boot-mmc git. 
> I have the permission to merge on just u-boot-pmic..But I don't know whether it's the best way to apply this into my u-boot-pmic or not. :)
> 
> I had been already reviewed about this patch..
> So if want to pick this, I think there is no problem about applied together with below patches.
> 
> Acked-by: Jaehoon Chung <jh80.chung at samsung.com>

Tom,
	Is it okay if I pick this patch as per above suggestion?

Thanks and regards,
Lokesh

> 
> Best Regards,
> Jaehoon Chung
> 
>>
>> [1] - https://protect2.fireeye.com/v1/url?k=bf905767-e00b6fae-bf91dc28-0cc47a336fae-6a3fa5da3333a309&q=1&e=ac3de2ef-41d1-4e60-952a-16e2b302cfdd&u=https%3A%2F%2Fpatchwork.ozlabs.org%2Fproject%2Fuboot%2Flist%2F%3Fseries%3D247000
>> [2] - https://protect2.fireeye.com/v1/url?k=c93699cd-96ada104-c9371282-0cc47a336fae-de6d85845da27eb0&q=1&e=ac3de2ef-41d1-4e60-952a-16e2b302cfdd&u=https%3A%2F%2Fpatchwork.ozlabs.org%2Fproject%2Fuboot%2Flist%2F%3Fseries%3D245579
>>
>> Thanks,
>> Aswath
>>
>>> Thanks,
>>> Aswath
>>>
>>>> Thanks,
>>>> Aswath
>>>>
>>>>> Best Regards,
>>>>> Jaehoon Chung
>>>>>
>>>>>> ---
>>>>>>  drivers/mmc/sdhci.c | 3 +++
>>>>>>  1 file changed, 3 insertions(+)
>>>>>>
>>>>>> diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c
>>>>>> index d9ab6a0a839e..eea4701d8af5 100644
>>>>>> --- a/drivers/mmc/sdhci.c
>>>>>> +++ b/drivers/mmc/sdhci.c
>>>>>> @@ -507,6 +507,9 @@ void sdhci_set_uhs_timing(struct sdhci_host *host)
>>>>>>  	case MMC_HS_200:
>>>>>>  		reg |= SDHCI_CTRL_UHS_SDR104;
>>>>>>  		break;
>>>>>> +	case MMC_HS_400:
>>>>>> +		reg |= SDHCI_CTRL_HS400;
>>>>>> +		break;
>>>>>>  	default:
>>>>>>  		reg |= SDHCI_CTRL_UHS_SDR12;
>>>>>>  	}
>>>>>>
>>>>>
>>>>
>>>
>>
>>
> 


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