On Tue, Mar 28, 2017 at 05:49:41PM +0100, Jon Hunter wrote: > > On 28/03/17 17:23, Stephen Warren wrote: > > On 03/28/2017 05:48 AM, Jon Hunter wrote: > >> 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. > > > > This seems fine, although I'd expect PSCI to be used everywhere on > > Tegra, so putting this in tegra210.dtsi would make more sense. > > It's fine with me. Although technically, tegra210-smaug ships with > psci-v1.0 and tegra210-jetson-tx1 currently have psci-v0.2. However, I > did test both with the psci version set to v1.0 and the jetson-tx1, did > detect the version automatically and reverted to v0.2 (which is a > feature of psci >= v0.2). Please don't rely upon that. If the DT lists 0.2 and the FW reports 1.0 we deliberately upgrade and treat it as 1.0, but the other way around was not a deliberate decision. If the FW is not necessarily 1.0, please do not list 1.0 in the DT. Thanks, Mark. -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
