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

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Message-ID: <20250422204413.272679-4-jm@ti.com>
Date: Tue, 22 Apr 2025 15:44:13 -0500
From: Judith Mendez <jm@...com>
To: Judith Mendez <jm@...com>, Ulf Hansson <ulf.hansson@...aro.org>,
        Nishanth
 Menon <nm@...com>, Adrian Hunter <adrian.hunter@...el.com>
CC: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Vignesh Raghavendra <vigneshr@...com>, Tero Kristo <kristo@...nel.org>,
        Josua Mayer <josua@...id-run.com>, <linux-mmc@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        Francesco Dolcini <francesco@...cini.it>,
        Hiago De Franco
	<hialgofranco@...il.com>
Subject: [PATCH v3 3/3] arm64: dts: ti: k3-am62*: add ti,suppress-v1p8-ena

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@...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@...0000 {
 		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@...0000 {
 		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@...0000 {
 		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