[PATCH 4/4] configs: j722s_evm_a53_defconfig: Disable eMMC HS400

Judith Mendez jm at ti.com
Thu Sep 11 16:30:37 CEST 2025


Hi Udit,

On 9/10/25 11:15 PM, Kumar, Udit wrote:
> 
> On 9/11/2025 3:15 AM, Judith Mendez wrote:
>> This patch addresses silicon errata i2478 [0] "MMCSD0: HS400 Mode not
>> supported". Where, eMMC HS400 mode is not supported due to bus timing
>> limitations. As per workaround, use HS200 mode instead.
>>
>> [0] https://www.ti.com/lit/pdf/sprz575
>> Signed-off-by: Judith Mendez <jm at ti.com>
>> ---
>>   configs/j722s_evm_a53_defconfig | 4 ++--
>>   1 file changed, 2 insertions(+), 2 deletions(-)
> 
> I think you should disable HS400 for am62px_evm_a53_defconfig as well

Hs400 has not been descoped on AM62Px device. So we should not
remove for AM62Px.

~ Judith


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