Hi, On Mon, 19 Feb 2018 09:52:05 +0100 Maxime Ripard <[email protected]> wrote:
> Hi, > > On Mon, Feb 19, 2018 at 09:18:36AM +0100, Mylène Josserand wrote: > > The ARM architected timers use an offset between their physical and > > virtual counters. That offset should be configured by the bootloader > > in CNTVOFF. > > > > However, the A83t bootloader fails to do so, and we end up with an > > undefined offset (which in our case is random), meaning that each CPU > > will have a different time, which isn't working very well. > > > > Fix that by setting the arm,cpu-registers-not-fw-configured that will > > make Linux use the physical timers instead of the virtual ones. One > > possible side effect would be that the virtualization features would > > be disabled. However, due to the way the GIC has been integrated in > > the system, it is already unusable so we're effectively not losing any > > feature. > > > > Signed-off-by: Mylène Josserand <[email protected]> > > One small nitpick on this one (and the previous one), arm in the > subject prefix should be uppercase. Okay, I will fix that in V4. Mylène -- Mylène Josserand, Bootlin (formerly Free Electrons) Embedded Linux and Kernel engineering http://bootlin.com
