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

Aswath Govindraju a-govindraju at ti.com
Mon May 10 15:48:33 CEST 2021


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.

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