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

Aswath Govindraju a-govindraju at ti.com
Mon Jul 19 08:48:22 CEST 2021


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].

[1] - https://patchwork.ozlabs.org/project/uboot/list/?series=247000
[2] - https://patchwork.ozlabs.org/project/uboot/list/?series=245579

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;
>>>>  	}
>>>>
>>>
>>
> 



More information about the U-Boot mailing list