arm64: tegra: Add CPU and PSCI nodes for NVIDIA Tegra210 platforms

Add the CPU and PSCI nodes for the NVIDIA Tegra210 platforms so that all CPUs can be enabled on boot. This assumes that the PSCI firmware has been loaded during the initial bootstrap on the device before the kernel starts (which is typically the case for these platforms). The PSCI firmware version is set to v0.2 which aligns with the current shipping version for Tegra. Reported-by: Martin Michlmayr <[email protected]> Signed-off-by: Jon Hunter <[email protected]> Tested-By: Vagrant Cascadian <[email protected]> Signed-off-by: Thierry Reding <[email protected]>
akeromi · Dec 13, 2017 · 2fdb74f · 2fdb74f
1 parent 3632850
commit 2fdb74f
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diff --git a/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi b/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi
@@ -297,6 +297,29 @@
 		};
 	};
 
+	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-0.2";
+		method = "smc";
+	};
+
 	regulators {
 		vdd_gpu: regulator@100 {
 			compatible = "pwm-regulator";

diff --git a/arch/arm64/boot/dts/nvidia/tegra210-p2530.dtsi b/arch/arm64/boot/dts/nvidia/tegra210-p2530.dtsi
@@ -52,4 +52,27 @@
 			clock-frequency = <32768>;
 		};
 	};
+
+	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-0.2";
+		method = "smc";
+	};
 };