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

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Hi,

On 4/11/24 11:53 PM, Kumar, Udit wrote:
Hi Judith

On 4/12/2024 4:22 AM, Judith Mendez wrote:
From: Dasnavis Sabiya <sabiya.d@xxxxxx>

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@xxxxxx>
Signed-off-by: Vignesh Raghavendra <vigneshr@xxxxxx>
---
  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;


This is just WA to get rid of CQE errors. I prefer to hold this patch under debug from hardware side is not complete.

ok, will drop this patch.

~ Judith


  };
  &main_sdhci1 {





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