linux-kernel - [PATCH 6/7] arm64: dts: ti: k3-am69-sk: Remove HS400 mode support for eMMC

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Date: Thu, 11 Apr 2024 17:52:56 -0500
From: Judith Mendez <jm@...com>
To: Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski
	<krzysztof.kozlowski+dt@...aro.org>
CC: Nishanth Menon <nm@...com>, Vignesh Raghavendra <vigneshr@...com>,
        Tero
 Kristo <kristo@...nel.org>, Conor Dooley <conor+dt@...nel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, Bhavya Kapoor <b-kapoor@...com>,
        Dasnavis
 Sabiya <sabiya.d@...com>, Udit Kumar <u-kumar1@...com>
Subject: [PATCH 6/7] arm64: dts: ti: k3-am69-sk: Remove HS400 mode support for eMMC

From: Dasnavis Sabiya <sabiya.d@...com>

The eMMC fails to enumerate intermittently on HS400 mode. Also
observing multiple CQE recovery warnings.
Update the sdhci0 node to disable HS400 and set HS200 mode for
eMMC node.

Signed-off-by: Dasnavis Sabiya <sabiya.d@...com>
Signed-off-by: Vignesh Raghavendra <vigneshr@...com>
---
 arch/arm64/boot/dts/ti/k3-am69-sk.dts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am69-sk.dts b/arch/arm64/boot/dts/ti/k3-am69-sk.dts
index 50de2a448a3a6..a677bb9200a35 100644
--- a/arch/arm64/boot/dts/ti/k3-am69-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am69-sk.dts
@@ -906,6 +906,7 @@ &main_sdhci0 {
 	non-removable;
 	ti,driver-strength-ohm = <50>;
 	disable-wp;
+	no-mmc-hs400;
 };
 
 &main_sdhci1 {
-- 
2.43.2