This patch addresses silicon errata i2458 [0] "MMCHS: eMMC HS400 tDCD timing marginal to JEDEC spec". Where, in some corner cases, MMC0 interface may marginally exceed the tdCD JEDEC spec requirement of 300 ps. As per workaround, switch to HS200 mode instead of HS400.
[0] https://www.ti.com/lit/er/sprz574a/sprz574a.pdf Signed-off-by: Judith Mendez <j...@ti.com> --- configs/am62px_evm_a53_defconfig | 4 ++-- configs/am62px_evm_r5_defconfig | 1 - 2 files changed, 2 insertions(+), 3 deletions(-) diff --git a/configs/am62px_evm_a53_defconfig b/configs/am62px_evm_a53_defconfig index 30b4a24ee9a..70dbb65d9f8 100644 --- a/configs/am62px_evm_a53_defconfig +++ b/configs/am62px_evm_a53_defconfig @@ -117,8 +117,8 @@ CONFIG_MMC_IO_VOLTAGE=y CONFIG_SPL_MMC_IO_VOLTAGE=y CONFIG_MMC_UHS_SUPPORT=y CONFIG_SPL_MMC_UHS_SUPPORT=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 diff --git a/configs/am62px_evm_r5_defconfig b/configs/am62px_evm_r5_defconfig index f39356351f4..1b4e0afbc07 100644 --- a/configs/am62px_evm_r5_defconfig +++ b/configs/am62px_evm_r5_defconfig @@ -89,7 +89,6 @@ CONFIG_SYS_I2C_OMAP24XX=y CONFIG_DM_MAILBOX=y CONFIG_K3_SEC_PROXY=y CONFIG_ESM_K3=y -CONFIG_MMC_HS400_SUPPORT=y CONFIG_MMC_SDHCI=y CONFIG_MMC_SDHCI_ADMA=y CONFIG_SPL_MMC_SDHCI_ADMA=y -- 2.49.0
