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

Judith Mendez jm at ti.com
Wed Sep 10 23:45:14 CEST 2025


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
-- 
2.51.0



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