Messages in this thread | | | Date | Thu, 9 Jun 2016 11:11:15 -0700 | From | David Daney <> | Subject | Re: [PATCH v3 2/2] arm64: dts: Fix broken architected timer interrupt trigger |
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On 06/06/2016 10:56 AM, Marc Zyngier wrote: > The ARM architected timer specification mandates that the interrupt > associated with each timer is level triggered (which corresponds to > the "counter >= comparator" condition). > > A number of DTs are being remarkably creative, declaring the interrupt > to be edge triggered. A quick look at the TRM for the corresponding ARM > CPUs clearly shows that this is wrong, and I've corrected those. > For non-ARM designs (and in the absence of a publicly available TRM), > I've made them active low as well, which can't be completely wrong > as the GIC cannot disinguish between level low and level high. > > The respective maintainers are of course welcome to prove me wrong. > > While I was at it, I took the liberty to fix a couple of related issue, > such as some spurious affinity bits on ThunderX, and their complete > absence on ls1043a (both of which seem to be related to copy-pasting > from other DTs). > > Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> > --- > arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi | 8 ++++---- > arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi | 8 ++++---- > arch/arm64/boot/dts/apm/apm-storm.dtsi | 8 ++++---- > arch/arm64/boot/dts/broadcom/ns2.dtsi | 8 ++++---- > arch/arm64/boot/dts/cavium/thunder-88xx.dtsi | 8 ++++---- > arch/arm64/boot/dts/exynos/exynos7.dtsi | 8 ++++---- > arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi | 8 ++++---- > arch/arm64/boot/dts/marvell/armada-ap806.dtsi | 8 ++++---- > arch/arm64/boot/dts/socionext/uniphier-ph1-ld20.dtsi | 8 ++++---- > arch/arm64/boot/dts/xilinx/zynqmp.dtsi | 8 ++++---- > 10 files changed, 40 insertions(+), 40 deletions(-) > [...] > diff --git a/arch/arm64/boot/dts/cavium/thunder-88xx.dtsi b/arch/arm64/boot/dts/cavium/thunder-88xx.dtsi > index 2eb9b22..382d86f 100644 > --- a/arch/arm64/boot/dts/cavium/thunder-88xx.dtsi > +++ b/arch/arm64/boot/dts/cavium/thunder-88xx.dtsi > @@ -354,10 +354,10 @@ > > timer { > compatible = "arm,armv8-timer"; > - interrupts = <1 13 0xff01>, > - <1 14 0xff01>, > - <1 11 0xff01>, > - <1 10 0xff01>; > + interrupts = <1 13 8>, > + <1 14 8>, > + <1 11 8>, > + <1 10 8>; > }; > > pmu {
Acked-by: David Daney <david.daney@cavium.com>
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