On Thu, Jun 18, 2020 at 12:56 PM Jon Hunter <jonath...@nvidia.com> wrote: > > The PSCI nodes are currently not populated for the Tegra210 and Tegra186 > devices. This prevents the PSCI driver from being able to identify the > PSCI method used by these devices and causes the probe of the PSCI > driver to fail. > > Since commit 81ea00838c68 ("efi_loader: PSCI reset and shutdown") was > added, which moves the PSCI EFI system reset handler into the PSCI > driver, this has prevented the EFI system reset from working for > Tegra210 and Tegra186. Therefore, populating these nodes is necessary > to fix the EFI system reset for Tegra210 and Tegra186. > > Signed-off-by: Jon Hunter <jonath...@nvidia.com> Tested-by: Peter Robinson <pbrobin...@gmail.com>
Tested on the Jetson Nano and it now reboots as expected. > --- > arch/arm/dts/tegra186.dtsi | 5 +++++ > arch/arm/dts/tegra210.dtsi | 5 +++++ > 2 files changed, 10 insertions(+) > > diff --git a/arch/arm/dts/tegra186.dtsi b/arch/arm/dts/tegra186.dtsi > index 0a9db9825b85..edcb7aacb8ee 100644 > --- a/arch/arm/dts/tegra186.dtsi > +++ b/arch/arm/dts/tegra186.dtsi > @@ -335,4 +335,9 @@ > status = "disabled"; > }; > }; > + > + psci { > + compatible = "arm,psci-1.0"; > + method = "smc"; > + }; > }; > diff --git a/arch/arm/dts/tegra210.dtsi b/arch/arm/dts/tegra210.dtsi > index 3ec54b11c43f..a521a43d6cfd 100644 > --- a/arch/arm/dts/tegra210.dtsi > +++ b/arch/arm/dts/tegra210.dtsi > @@ -867,6 +867,11 @@ > }; > }; > > + psci { > + compatible = "arm,psci-1.0"; > + method = "smc"; > + }; > + > timer { > compatible = "arm,armv8-timer"; > interrupts = <GIC_PPI 13 > -- > 2.17.1 >