[PATCH RESEND v3 3/3] arm64: dts: ti: k3-am62*: add ti,suppress-v1p8-ena

Judith Mendez
2025-04-22T22:05:29Z

Add ti,suppress-v1p8-ena flag to sdhci1 nodes to suppress
V1P8_SIGNAL_ENA.

On am62x, am62ax, and am62px SoCs, there is no internal LDO
tied to sdhci1 interface so V1P8_SIGNAL_ENA only affects timing.
Suppress V1P8_SIGNAL_ENA since it causes init failures across
Microcenter/Patriot SD cards and Kingston eMMC on am62* SK boards.

Signed-off-by: Judith Mendez <jm@ti.com>
---
arch/arm64/boot/dts/ti/k3-am62-main.dtsi | 1 +
arch/arm64/boot/dts/ti/k3-am62a-main.dtsi | 1 +
arch/arm64/boot/dts/ti/k3-am62p-j722s-common-main.dtsi | 1 +
3 files changed, 3 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am62-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
index 7d355aa73ea2..a61153b0af32 100644
--- a/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
@@ -586,6 +586,7 @@ sdhci1: mmc@fa00000 {
ti,itap-del-sel-sd-hs = <0x0>;
ti,itap-del-sel-sdr12 = <0x0>;
ti,itap-del-sel-sdr25 = <0x0>;
+ ti,suppress-v1p8-ena;
status = "disabled";
};

diff --git a/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi
index a1daba7b1fad..44d973caf200 100644
--- a/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi
@@ -606,6 +606,7 @@ sdhci1: mmc@fa00000 {
ti,itap-del-sel-sd-hs = <0x0>;
ti,itap-del-sel-sdr12 = <0x0>;
ti,itap-del-sel-sdr25 = <0x0>;
+ ti,suppress-v1p8-ena;
status = "disabled";
};

diff --git a/arch/arm64/boot/dts/ti/k3-am62p-j722s-common-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62p-j722s-common-main.dtsi
index 6e3beb5c2e01..c4304dae9757 100644
--- a/arch/arm64/boot/dts/ti/k3-am62p-j722s-common-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62p-j722s-common-main.dtsi
@@ -604,6 +604,7 @@ sdhci1: mmc@fa00000 {
ti,itap-del-sel-sd-hs = <0x0>;
ti,itap-del-sel-sdr12 = <0x0>;
ti,itap-del-sel-sdr25 = <0x0>;
+ ti,suppress-v1p8-ena;
status = "disabled";
};

--
2.49.0