[RFC PATCH V2 12/12] arm64: tegra: SDHCI timing settings

Krishna Yarlagadda
2024-07-01T15:14:06Z

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

Signed-off-by: Krishna Yarlagadda <kyarlagadda@nvidia.com>
---
arch/arm64/boot/dts/nvidia/tegra234-cfg.dtsi | 36 ++++++++++++++++++++
1 file changed, 36 insertions(+)

diff --git a/arch/arm64/boot/dts/nvidia/tegra234-cfg.dtsi b/arch/arm64/boot/dts/nvidia/tegra234-cfg.dtsi
index 7e5b9c10c617..30c125636123 100644
--- a/arch/arm64/boot/dts/nvidia/tegra234-cfg.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra234-cfg.dtsi
@@ -426,6 +426,34 @@ i2c-standard-cfg {

};

+ configmmc1: config-mmc3400000 {
+
+ sdhci-mmc-hs200-cfg {
+ nvidia,num-tuning-iter = <0x2>;
+ };
+
+ sdhci-uhs-sdr104-cfg {
+ nvidia,num-tuning-iter = <0x2>;
+ };
+
+ sdhci-uhs-sdr50-cfg {
+ nvidia,num-tuning-iter = <0x4>;
+ };
+
+ };
+
+ configmmc2: config-mmc3460000 {
+
+ sdhci-mmc-hs200-cfg {
+ nvidia,num-tuning-iter = <0x2>;
+ };
+
+ sdhci-mmc-hs400-cfg {
+ nvidia,num-tuning-iter = <0x2>;
+ };
+
+ };
+
};

bus@0 {
@@ -461,5 +489,13 @@ i2c@c250000 {
config-settings = <&configi2c8>;
};

+ mmc@3400000 {
+ config-settings = <&configmmc1>;
+ };
+
+ mmc@3460000 {
+ config-settings = <&configmmc2>;
+ };
+
};
};
--
2.43.2