| Message ID | 20171229105506.24851-6-mylene.josserand@free-electrons.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/arch/arm/boot/dts/sun8i-a83t.dtsi b/arch/arm/boot/dts/sun8i-a83t.dtsi index aa27ffb7db81..ddcd90ae3a73 100644 --- a/arch/arm/boot/dts/sun8i-a83t.dtsi +++ b/arch/arm/boot/dts/sun8i-a83t.dtsi @@ -121,6 +121,7 @@ <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_LOW)>, <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_LOW)>, <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_LOW)>; + arm,cpu-registers-not-fw-configured; }; clocks {
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 <mylene.josserand@free-electrons.com> --- arch/arm/boot/dts/sun8i-a83t.dtsi | 1 + 1 file changed, 1 insertion(+)