[PATCH 7/7] arm64: dts: ti: k3-j784s4-evm: Remove HS400 mode support for eMMC

Judith Mendez jm at ti.com
Thu Apr 11 15:52:57 PDT 2024


From: Udit Kumar <u-kumar1 at ti.com>

The eMMC fails to enumerate intermittently on HS400 mode. Also
observing multiple CQE recovery warnings.

Update the sdhci0 node to disable HS400.

Cc: Vignesh Raghavendra <vigneshr at ti.com>
Cc: Bhavya Kapoor <b-kapoor at ti.com>
Cc: Siddharth Vadapalli <s-vadapalli at ti.com>
Signed-off-by: Udit Kumar <u-kumar1 at ti.com>
Signed-off-by: Vignesh Raghavendra <vigneshr at ti.com>
[Judith: Reword commit]
Signed-off-by: Judith Mendez <jm at ti.com>
---
 arch/arm64/boot/dts/ti/k3-j784s4-evm.dts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/ti/k3-j784s4-evm.dts b/arch/arm64/boot/dts/ti/k3-j784s4-evm.dts
index 81fd7afac8c57..04a241a91e6b8 100644
--- a/arch/arm64/boot/dts/ti/k3-j784s4-evm.dts
+++ b/arch/arm64/boot/dts/ti/k3-j784s4-evm.dts
@@ -791,6 +791,7 @@ &main_sdhci0 {
 	non-removable;
 	ti,driver-strength-ohm = <50>;
 	disable-wp;
+	no-mmc-hs400;
 };
 
 &main_sdhci1 {
-- 
2.43.2




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