From 6ea62404167e6c3a0c0bd8447ca14c5f92577ade Mon Sep 17 00:00:00 2001
From: Thomas Makin <halorocker89@gmail.com>
Date: Sun, 10 Aug 2025 22:04:16 -0500
Subject: [PATCH] t210b01: add sdmmc suport

---
 arch/arm64/boot/dts/nvidia/tegra210b01.dtsi | 80 +++++++++++++++++++++
 1 file changed, 80 insertions(+)

diff --git a/arch/arm64/boot/dts/nvidia/tegra210b01.dtsi b/arch/arm64/boot/dts/nvidia/tegra210b01.dtsi
index 6060935fad4d..875e40278759 100644
--- a/arch/arm64/boot/dts/nvidia/tegra210b01.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra210b01.dtsi
@@ -29,6 +29,51 @@
 		/delete-property/ pinctrl-names;
 	};
 
+	mmc@700b0600 {
+		nvidia,default-tap = <9>;
+		nvidia,default-trim = <13>;
+
+		clocks = <&tegra_car TEGRA210_CLK_SDMMC4>,
+			 <&tegra_car TEGRA210_CLK_SDMMC_LEGACY>;
+		clock-names = "sdmmc4", "sdmmc_legacy";
+
+		assigned-clocks = <&tegra_car TEGRA210_CLK_SDMMC4>,
+			 <&tegra_car TEGRA210_CLK_PLL_C4_OUT2>;
+		assigned-clock-parents = <&tegra_car TEGRA210_CLK_PLL_C4_OUT2>;
+	};
+
+	mmc@700b0400 {
+		nvidia,default-tap = <11>;
+		nvidia,default-trim = <18>;
+
+		clocks = <&tegra_car TEGRA210_CLK_SDMMC3>,
+			 <&tegra_car TEGRA210_CLK_SDMMC_LEGACY>;
+		clock-names = "sdmmc3", "sdmmc_legacy";
+	};
+
+	mmc@700b0200 {
+		nvidia,default-tap = <8>;
+		nvidia,default-trim = <13>;
+
+		clocks = <&tegra_car TEGRA210_CLK_SDMMC2>,
+			 <&tegra_car TEGRA210_CLK_SDMMC_LEGACY>;
+		clock-names = "sdmmc2", "sdmmc_legacy";
+	};
+
+	mmc@700b0000 {
+		nvidia,default-tap = <11>;
+		nvidia,default-trim = <14>;
+
+		clocks = <&tegra_car TEGRA210_CLK_SDMMC1>,
+			 <&tegra_car TEGRA210_CLK_SDMMC_LEGACY>;
+		clock-names = "sdmmc1", "sdmmc_legacy";
+
+		assigned-clocks = <&tegra_car TEGRA210_CLK_SDMMC4>,
+				  <&tegra_car TEGRA210_CLK_PLL_C4_OUT2>,
+				  <&tegra_car TEGRA210_CLK_PLL_C4>;
+		assigned-clock-parents = <&tegra_car TEGRA210_CLK_PLL_C4_OUT2>;
+	};
+
 	/* Tegra210B01 has MBIST patched and is missing VI unit */
 	pmc@7000e400 {
 		compatible = "nvidia,tegra210b01-pmc";
@@ -50,6 +95,41 @@
 		compatible = "nvidia,tegra210b01-xusb-padctl";
 	};
 
+	pinmux@700008d4 {
+		status = "okay";
+		sdmmc1_drv_code_1_8V: sdmmc1_drv_code {
+			sdmmc1 {
+				nvidia,pins = "drive_sdmmc1";
+				nvidia,pull-down-strength = <8>;
+				nvidia,pull-up-strength = <8>;
+			};
+		};
+
+		sdmmc1_default_drv_code_3_3V: sdmmc1_default_drv_code {
+			sdmmc1 {
+				nvidia,pins = "drive_sdmmc1";
+				nvidia,pull-down-strength = <8>;
+				nvidia,pull-up-strength = <8>;
+			};
+		};
+
+		sdmmc3_drv_code_1_8V: sdmmc3_drv_code {
+			sdmmc3 {
+				nvidia,pins = "drive_sdmmc3";
+				nvidia,pull-down-strength = <8>;
+				nvidia,pull-up-strength = <8>;
+			};
+		};
+
+		sdmmc3_default_drv_code_3_3V: sdmmc3_default_drv_code {
+			sdmmc3 {
+				nvidia,pins = "drive_sdmmc3";
+				nvidia,pull-down-strength = <8>;
+				nvidia,pull-up-strength = <8>;
+			};
+		};
+	};
+
 	usb@700d0000 {
 		compatible = "nvidia,tegra210b01-xudc";
 	};