From 29ebc91443b9c4fa4682e75cec0ef8cee54c6f44 Mon Sep 17 00:00:00 2001 From: Jon Hunter Date: Tue, 28 Mar 2017 12:48:38 +0100 Subject: [PATCH] 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 Signed-off-by: Jon Hunter Tested-By: Vagrant Cascadian Signed-off-by: Thierry Reding Gbp-Pq: Topic features/arm64/tegra210-smp Gbp-Pq: Name 0001-arm64-tegra-Add-CPU-and-PSCI-nodes-for-NVIDIA-Tegra2.patch --- .../arm64/boot/dts/nvidia/tegra210-p2180.dtsi | 23 +++++++++++++++++++ .../arm64/boot/dts/nvidia/tegra210-p2530.dtsi | 23 +++++++++++++++++++ 2 files changed, 46 insertions(+) diff --git a/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi b/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi index d10d4430537..212e6634c9b 100644 --- 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 index be6066ff97c..d0dc0392372 100644 --- 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"; + }; }; -- 2.30.2