[PATCH 4/4] configs: j722s_evm_a53_defconfig: Disable eMMC HS400
Kumar, Udit
u-kumar1 at ti.com
Thu Sep 11 16:45:31 CEST 2025
Hi Judith
On 9/11/2025 8:00 PM, Judith Mendez wrote:
> 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.
then please check, why this is getting removed only from r5/spl in patch
3/4
configs/am62px_evm_r5_defconfig
--- a/configs/am62px_evm_r5_defconfig
+++ b/configs/am62px_evm_r5_defconfig
@@ -88,7 +88,6 @@ CONFIG_DM_MAILBOX=y
CONFIG_K3_SEC_PROXY=y
CONFIG_ESM_K3=y
CONFIG_SUPPORT_EMMC_BOOT=y
-CONFIG_MMC_HS400_SUPPORT=y
CONFIG_MMC_SDHCI=y
CONFIG_MMC_SDHCI_ADMA=y
CONFIG_SPL_MMC_SDHCI_ADMA=y
>
> ~ Judith
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