From mboxrd@z Thu Jan 1 00:00:00 1970 From: jonathanh@nvidia.com (Jon Hunter) Date: Tue, 28 Mar 2017 12:48:38 +0100 Subject: [PATCH] arm64: tegra: Add CPU and PSCI nodes for NVIDIA Tegra210 platforms Message-ID: <1490701718-16571-1-git-send-email-jonathanh@nvidia.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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 --- arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi | 23 +++++++++++++++++++++++ arch/arm64/boot/dts/nvidia/tegra210-p2530.dtsi | 24 ++++++++++++++++++++++++ 2 files changed, 47 insertions(+) diff --git a/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi b/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi index 906fb836d241..de1696c28140 100644 --- a/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi +++ b/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi @@ -296,6 +296,29 @@ }; }; + cpus { + cpu at 0 { + enable-method = "psci"; + }; + + cpu at 1 { + enable-method = "psci"; + }; + + cpu at 2 { + enable-method = "psci"; + }; + + cpu at 3 { + enable-method = "psci"; + }; + }; + + psci { + compatible = "arm,psci-0.2"; + method = "smc"; + }; + regulators { vdd_gpu: regulator at 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 0ec92578cacb..67cb039965fd 100644 --- a/arch/arm64/boot/dts/nvidia/tegra210-p2530.dtsi +++ b/arch/arm64/boot/dts/nvidia/tegra210-p2530.dtsi @@ -51,4 +51,28 @@ clock-frequency = <32768>; }; }; + + cpus { + cpu at 0 { + enable-method = "psci"; + }; + + cpu at 1 { + enable-method = "psci"; + }; + + cpu at 2 { + enable-method = "psci"; + }; + + cpu at 3 { + enable-method = "psci"; + }; + }; + + psci { + compatible = "arm,psci-0.2"; + method = "smc"; + }; + }; -- 2.7.4