linux-kernel - [PATCH] arm64: dts: ti: k3-am62-main: Update otap/itap values

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Message-ID: <20240924195335.546900-1-jm@ti.com>
Date: Tue, 24 Sep 2024 14:53:35 -0500
From: Judith Mendez <jm@...com>
To: Vignesh Raghavendra <vigneshr@...com>, Nishanth Menon <nm@...com>
CC: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
        Bhavya Kapoor <b-kapoor@...com>, Judith Mendez <jm@...com>
Subject: [PATCH] arm64: dts: ti: k3-am62-main: Update otap/itap values

Update itap/itap values according to device datasheet [0].

Now that we have fixed timing issues for am62x [1], lets
change the otap/itap values back according to the device
datasheet.

[0] https://www.ti.com/lit/ds/symlink/am625.pdf
[1] https://lore.kernel.org/linux-mmc/20240913185403.1339115-1-jm@ti.com/

Signed-off-by: Judith Mendez <jm@...com>
---
 arch/arm64/boot/dts/ti/k3-am62-main.dtsi | 47 ++++++++++++------------
 1 file changed, 23 insertions(+), 24 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-am62-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
index 5b92aef5b284..7194603fd3bc 100644
--- a/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
@@ -561,10 +561,9 @@ sdhci0: mmc@...0000 {
 		ti,clkbuf-sel = <0x7>;
 		ti,otap-del-sel-legacy = <0x0>;
 		ti,otap-del-sel-mmc-hs = <0x0>;
-		ti,otap-del-sel-ddr52 = <0x5>;
-		ti,otap-del-sel-hs200 = <0x5>;
-		ti,itap-del-sel-legacy = <0xa>;
-		ti,itap-del-sel-mmc-hs = <0x1>;
+		ti,otap-del-sel-hs200 = <0x6>;
+		ti,itap-del-sel-legacy = <0x0>;
+		ti,itap-del-sel-mmc-hs = <0x0>;
 		status = "disabled";
 	};
 
@@ -577,17 +576,17 @@ sdhci1: mmc@...0000 {
 		clock-names = "clk_ahb", "clk_xin";
 		bus-width = <4>;
 		ti,clkbuf-sel = <0x7>;
-		ti,otap-del-sel-legacy = <0x8>;
+		ti,otap-del-sel-legacy = <0x0>;
 		ti,otap-del-sel-sd-hs = <0x0>;
-		ti,otap-del-sel-sdr12 = <0x0>;
-		ti,otap-del-sel-sdr25 = <0x0>;
-		ti,otap-del-sel-sdr50 = <0x8>;
-		ti,otap-del-sel-sdr104 = <0x7>;
-		ti,otap-del-sel-ddr50 = <0x4>;
-		ti,itap-del-sel-legacy = <0xa>;
-		ti,itap-del-sel-sd-hs = <0x1>;
-		ti,itap-del-sel-sdr12 = <0xa>;
-		ti,itap-del-sel-sdr25 = <0x1>;
+		ti,otap-del-sel-sdr12 = <0xf>;
+		ti,otap-del-sel-sdr25 = <0xf>;
+		ti,otap-del-sel-sdr50 = <0xc>;
+		ti,otap-del-sel-sdr104 = <0x6>;
+		ti,otap-del-sel-ddr50 = <0x9>;
+		ti,itap-del-sel-legacy = <0x0>;
+		ti,itap-del-sel-sd-hs = <0x0>;
+		ti,itap-del-sel-sdr12 = <0x0>;
+		ti,itap-del-sel-sdr25 = <0x0>;
 		status = "disabled";
 	};
 
@@ -600,17 +599,17 @@ sdhci2: mmc@...0000 {
 		clock-names = "clk_ahb", "clk_xin";
 		bus-width = <4>;
 		ti,clkbuf-sel = <0x7>;
-		ti,otap-del-sel-legacy = <0x8>;
+		ti,otap-del-sel-legacy = <0x0>;
 		ti,otap-del-sel-sd-hs = <0x0>;
-		ti,otap-del-sel-sdr12 = <0x0>;
-		ti,otap-del-sel-sdr25 = <0x0>;
-		ti,otap-del-sel-sdr50 = <0x8>;
-		ti,otap-del-sel-sdr104 = <0x7>;
-		ti,otap-del-sel-ddr50 = <0x8>;
-		ti,itap-del-sel-legacy = <0xa>;
-		ti,itap-del-sel-sd-hs = <0xa>;
-		ti,itap-del-sel-sdr12 = <0xa>;
-		ti,itap-del-sel-sdr25 = <0x1>;
+		ti,otap-del-sel-sdr12 = <0xf>;
+		ti,otap-del-sel-sdr25 = <0xf>;
+		ti,otap-del-sel-sdr50 = <0xc>;
+		ti,otap-del-sel-sdr104 = <0x6>;
+		ti,otap-del-sel-ddr50 = <0x9>;
+		ti,itap-del-sel-legacy = <0x0>;
+		ti,itap-del-sel-sd-hs = <0x0>;
+		ti,itap-del-sel-sdr12 = <0x0>;
+		ti,itap-del-sel-sdr25 = <0x0>;
 		status = "disabled";
 	};
 
-- 
2.46.0