linux-kernel - [RFC PATCH 11/11] arm64: tegra: SDHCI timing settings

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Message-ID: <20240506225139.57647-12-kyarlagadda@nvidia.com>
Date: Tue, 7 May 2024 04:21:39 +0530
From: Krishna Yarlagadda <kyarlagadda@...dia.com>
To: <linux-tegra@...r.kernel.org>, <devicetree@...r.kernel.org>,
	<linux-doc@...r.kernel.org>, <linux-i2c@...r.kernel.org>,
	<linux-mmc@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC: <thierry.reding@...il.com>, <jonathanh@...dia.com>, <robh@...nel.org>,
	<krzk+dt@...nel.org>, <conor+dt@...nel.org>, <corbet@....net>,
	<andi.shyti@...nel.org>, <wsa+renesas@...g-engineering.com>,
	<ulf.hansson@...aro.org>, <adrian.hunter@...el.com>, <digetx@...il.com>,
	<ldewangan@...dia.com>, <kyarlagadda@...dia.com>, <mkumard@...dia.com>
Subject: [RFC PATCH 11/11] arm64: tegra: SDHCI timing settings

Set SDHCI timing registers through config settings for
Tegra234 chip and P3701 board.

Signed-off-by: Krishna Yarlagadda <kyarlagadda@...dia.com>
---
 arch/arm64/boot/dts/nvidia/tegra234-cfg.dtsi | 32 ++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/arch/arm64/boot/dts/nvidia/tegra234-cfg.dtsi b/arch/arm64/boot/dts/nvidia/tegra234-cfg.dtsi
index 832538e45797..f9a92853b04a 100644
--- a/arch/arm64/boot/dts/nvidia/tegra234-cfg.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra234-cfg.dtsi
@@ -442,5 +442,37 @@ standard {
 			};
 		};
 
+		mmc@...0000 {
+			config {
+
+				mmc-hs200 {
+					nvidia,num-tuning-iter = <0x2>;
+				};
+
+				uhs-sdr104 {
+					nvidia,num-tuning-iter = <0x2>;
+				};
+
+				uhs-sdr50 {
+					nvidia,num-tuning-iter = <0x4>;
+				};
+
+			};
+		};
+
+		mmc@...0000 {
+			config {
+
+				mmc-hs200 {
+					nvidia,num-tuning-iter = <0x2>;
+				};
+
+				mmc-hs400 {
+					nvidia,num-tuning-iter = <0x2>;
+				};
+
+			};
+		};
+
 	};
 };
-- 
2.43.2