From 18f020320fe5dce5523e1ac6eebd6efca02155ee Mon Sep 17 00:00:00 2001
From: Aaron Kling <webgeek1234@gmail.com>
Date: Sun, 11 May 2025 21:53:40 -0500
Subject: [PATCH] arm64: tegra: Add support for NVIDIA Shield TV Pro 2019

Add initial device-tree support for NVIDIA Shield TV Pro 2019 (a.k.a
MDarcy) based up the Tegra210B01 SoC with 3 GiB of LPDDR4 RAM.

This is very basic, intended for checking initial Tegra210B01 support.
More complete support for the device will be added later.

Signed-off-by: Aaron Kling <webgeek1234@gmail.com>
---
 arch/arm64/boot/dts/nvidia/Makefile           |  1 +
 .../dts/nvidia/tegra210b01-p2894-0050-a08.dts | 10 +++
 .../boot/dts/nvidia/tegra210b01-p2894.dtsi    | 70 +++++++++++++++++++
 3 files changed, 81 insertions(+)
 create mode 100644 arch/arm64/boot/dts/nvidia/tegra210b01-p2894-0050-a08.dts
 create mode 100644 arch/arm64/boot/dts/nvidia/tegra210b01-p2894.dtsi

diff --git a/arch/arm64/boot/dts/nvidia/Makefile b/arch/arm64/boot/dts/nvidia/Makefile
index b377d895c00c..7313e1b00070 100644
--- a/arch/arm64/boot/dts/nvidia/Makefile
+++ b/arch/arm64/boot/dts/nvidia/Makefile
@@ -26,6 +26,7 @@ dtb-$(CONFIG_ARCH_TEGRA_210_SOC) += tegra210-p3450-0000.dtb
 dtb-$(CONFIG_ARCH_TEGRA_210_SOC) += tegra210-p3541-0000.dtb
 dtb-$(CONFIG_ARCH_TEGRA_210_SOC) += tegra210-smaug.dtb
 dtb-$(CONFIG_ARCH_TEGRA_210_SOC) += tegra210-p2894-0050-a08.dtb
+dtb-$(CONFIG_ARCH_TEGRA_210_SOC) += tegra210b01-p2894-0050-a08.dtb
 dtb-$(CONFIG_ARCH_TEGRA_186_SOC) += tegra186-p2771-0000.dtb
 dtb-$(CONFIG_ARCH_TEGRA_186_SOC) += tegra186-p3509-0000+p3636-0001.dtb
 dtb-$(CONFIG_ARCH_TEGRA_194_SOC) += tegra194-p2972-0000.dtb
diff --git a/arch/arm64/boot/dts/nvidia/tegra210b01-p2894-0050-a08.dts b/arch/arm64/boot/dts/nvidia/tegra210b01-p2894-0050-a08.dts
new file mode 100644
index 000000000000..f18266b3d8ae
--- /dev/null
+++ b/arch/arm64/boot/dts/nvidia/tegra210b01-p2894-0050-a08.dts
@@ -0,0 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
+/dts-v1/;
+
+#include "tegra210b01-p2894.dtsi"
+
+/ {
+	model = "NVIDIA Shield TV Pro 2019";
+	compatible = "nvidia,p2894-0050-a08", "nvidia,darcy", "nvidia,tegra210b01",
+		"nvidia,tegra210";
+};
diff --git a/arch/arm64/boot/dts/nvidia/tegra210b01-p2894.dtsi b/arch/arm64/boot/dts/nvidia/tegra210b01-p2894.dtsi
new file mode 100644
index 000000000000..97c9bd8f2935
--- /dev/null
+++ b/arch/arm64/boot/dts/nvidia/tegra210b01-p2894.dtsi
@@ -0,0 +1,70 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "tegra210b01.dtsi"
+
+/ {
+	aliases {
+		serial0 = &uarta;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	memory@80000000 {
+		device_type = "memory";
+		reg = <0x0 0x80000000 0x0 0xc0000000>;
+	};
+
+	serial@70006000 {
+		/delete-property/ dmas;
+		/delete-property/ dma-names;
+		status = "okay";
+	};
+
+	pmc@7000e400 {
+		nvidia,invert-interrupt;
+		nvidia,suspend-mode = <0>;
+		nvidia,cpu-pwr-good-time = <0>;
+		nvidia,cpu-pwr-off-time = <0>;
+		nvidia,core-pwr-good-time = <4587 3876>;
+		nvidia,core-pwr-off-time = <39065>;
+		nvidia,core-power-req-active-high;
+		nvidia,sys-clock-req-active-high;
+		status = "okay";
+	};
+
+	mmc@700b0600 {
+		bus-width = <8>;
+		non-removable;
+		status = "okay";
+	};
+
+	clk32k_in: clock-32k {
+		compatible = "fixed-clock";
+		clock-frequency = <32768>;
+		#clock-cells = <0>;
+	};
+
+	cpus {
+		cpu@0 {
+			enable-method = "psci";
+		};
+
+		cpu@1 {
+			enable-method = "psci";
+		};
+
+		cpu@2 {
+			enable-method = "psci";
+		};
+
+		cpu@3 {
+			enable-method = "psci";
+		};
+	};
+
+	psci {
+		compatible = "arm,psci-1.0";
+		method = "smc";
+	};
+};