linux-kernel - [PATCH v2 1/2] arm64: dts: ti: k3-am62p/j722s: Remove HS400 support from common

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Message-ID: <20250908173831.269039-2-jm@ti.com>
Date: Mon, 8 Sep 2025 12:38:30 -0500
From: Judith Mendez <jm@...com>
To: Judith Mendez <jm@...com>, Nishanth Menon <nm@...com>
CC: Moteen Shah <m-shah@...com>, Vignesh Raghavendra <vigneshr@...com>,
        Tero
 Kristo <kristo@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof
 Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH v2 1/2] arm64: dts: ti: k3-am62p/j722s: Remove HS400 support from common

Since eMMC HS400 has been descoped for J722s due to errata i2478 [0]
and is supported for AM62Px device, remove eMMC HS400 support from
common-main.dtsi and include only in am62p-main.dtsi.

[0] https://www.ti.com/lit/pdf/sprz575
Signed-off-by: Judith Mendez <jm@...com>
---
 arch/arm64/boot/dts/ti/k3-am62p-j722s-common-main.dtsi | 3 ---
 arch/arm64/boot/dts/ti/k3-am62p-main.dtsi              | 6 ++++++
 2 files changed, 6 insertions(+), 3 deletions(-)

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 4427b12058a6..0c05bcf1d776 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
@@ -576,15 +576,12 @@ sdhci0: mmc@...0000 {
 		bus-width = <8>;
 		mmc-ddr-1_8v;
 		mmc-hs200-1_8v;
-		mmc-hs400-1_8v;
 		ti,clkbuf-sel = <0x7>;
-		ti,strobe-sel = <0x77>;
 		ti,trm-icp = <0x8>;
 		ti,otap-del-sel-legacy = <0x1>;
 		ti,otap-del-sel-mmc-hs = <0x1>;
 		ti,otap-del-sel-ddr52 = <0x6>;
 		ti,otap-del-sel-hs200 = <0x8>;
-		ti,otap-del-sel-hs400 = <0x5>;
 		ti,itap-del-sel-legacy = <0x10>;
 		ti,itap-del-sel-mmc-hs = <0xa>;
 		ti,itap-del-sel-ddr52 = <0x3>;
diff --git a/arch/arm64/boot/dts/ti/k3-am62p-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62p-main.dtsi
index 6aea9d3f134e..90afe21e972b 100644
--- a/arch/arm64/boot/dts/ti/k3-am62p-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62p-main.dtsi
@@ -31,6 +31,12 @@ usb1: usb@...00000 {
 			snps,usb2-lpm-disable;
 		};
 	};
+
+	sdhci0: mmc@...0000 {
+		mmc-hs400-1_8v;
+		ti,strobe-sel = <0x77>;
+		ti,otap-del-sel-hs400 = <0x5>;
+	};
 };
 
 &oc_sram {
-- 
2.51.0