On Mon, Jun 15, 2015 at 07:46:08PM +0100, Kyle Huey wrote:
> This patch modifies the device tree for tegra124 based devices to enable the
> Cortex A15 PMU. The interrupt numbers are taken from NVIDIA TRM
> DP-06905-001_v03p. This patch was tested on a Jetson TK1.
>
> Signed-off-by: Kyle Huey <kh...@kylehuey.com>
> ---
> arch/arm/boot/dts/tegra124.dtsi | 8 ++++++++
> 1 file changed, 8 insertions(+)
>
> diff --git a/arch/arm/boot/dts/tegra124.dtsi b/arch/arm/boot/dts/tegra124.dtsi
> index 4be06c6..d966d4e 100644
> --- a/arch/arm/boot/dts/tegra124.dtsi
> +++ b/arch/arm/boot/dts/tegra124.dtsi
> @@ -906,16 +906,24 @@
>
> cpu@3 {
> device_type = "cpu";
> compatible = "arm,cortex-a15";
> reg = <3>;
> };
> };
>
> + pmu {
> + compatible = "arm,cortex-a15-pmu";
> + interrupts = <GIC_SPI 144 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 145 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 146 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 147 IRQ_TYPE_LEVEL_HIGH>;
> + };
As these are SPIs, you should fill in the interrupt-affinity property
(see Documentation/devicetree/bindings/arm/pmu.txt). That'll avoid
potential problems with CPU renumbering, and prevent the kernel from
complaining at boot time.
Otherwise, this looks fine.
Thanks,
Mark.
--
To unsubscribe from this list: send the line "unsubscribe linux-tegra" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
