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

Moteen Shah m-shah at ti.com
Thu Sep 11 12:33:10 CEST 2025


On 11/09/25 03:15, 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(-)
>
> diff --git a/configs/j722s_evm_a53_defconfig b/configs/j722s_evm_a53_defconfig
> index 83ac99c922a..a7ab78a367a 100644
> --- a/configs/j722s_evm_a53_defconfig
> +++ b/configs/j722s_evm_a53_defconfig
> @@ -101,8 +101,8 @@ CONFIG_FS_LOADER=y
>   CONFIG_SUPPORT_EMMC_BOOT=y
>   CONFIG_MMC_IO_VOLTAGE=y
>   CONFIG_SPL_MMC_IO_VOLTAGE=y
> -CONFIG_MMC_HS400_SUPPORT=y
> -CONFIG_SPL_MMC_HS400_SUPPORT=y
> +CONFIG_MMC_HS200_SUPPORT=y
> +CONFIG_SPL_MMC_HS200_SUPPORT=y
>   CONFIG_MMC_SDHCI=y
>   CONFIG_MMC_SDHCI_ADMA=y
>   CONFIG_SPL_MMC_SDHCI_ADMA=y


Reviewed-by: Moteen Shah <m-shah at ti.com>

Regards,
Moteen



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