From mboxrd@z Thu Jan  1 00:00:00 1970
From: Chanwoo Choi <cw00.choi@samsung.com>
Subject: Re: [PATCH 1/1] ARM: dts: exynos: Add timer node for exynos5420
Date: Wed, 30 Mar 2016 14:17:55 +0900
Message-ID: <56FB6183.8030701@samsung.com>
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To: Adel Belhouane <bugs.a.b@free.fr>, Kukjin Kim <kgene@kernel.org>, Krzysztof Kozlowski <k.kozlowski@samsung.com>, linux-samsung-soc@vger.kernel.org

Hi Adel,

On 2016=EB=85=84 03=EC=9B=94 28=EC=9D=BC 23:08, Adel Belhouane wrote:
> This patch adds timer node for exynos542x/5800.
> Generic Timer Architecture is needed by KVM.
>=20
> Signed-off-by: Adel Belhouane <bugs.a.b@free.fr>
> ---
>  arch/arm/boot/dts/exynos5420.dtsi | 10 ++++++++++
>  1 file changed, 10 insertions(+)
>=20
> diff --git a/arch/arm/boot/dts/exynos5420.dtsi b/arch/arm/boot/dts/ex=
ynos5420.dtsi
> index 48a0a55314f5..4663006d15ab 100644
> --- a/arch/arm/boot/dts/exynos5420.dtsi
> +++ b/arch/arm/boot/dts/exynos5420.dtsi
> @@ -1140,6 +1140,16 @@
>  		power-domains =3D <&disp_pd>;
>  		#iommu-cells =3D <0>;
>  	};
> +
> +	timer {
> +		compatible =3D "arm,cortex-a15-timer",
> +			     "arm,armv7-timer";
> +		interrupts =3D <1 13 0xf08>,
> +			     <1 14 0xf08>,
> +			     <1 11 0xf08>,
> +			     <1 10 0xf08>;
> +		clock-frequency =3D <24000000>;
> +	};
>  };
> =20
>  &dp {
>=20

Did you test this arch_timer after deleting the MCT Device Tree node fr=
om dts file?

As I knew, the generic arch time uses same H/W with MCT device in Exyno=
s SoC.
So, If we remove the MCT device-tree node from dts, the arch timer is n=
ot working.
Just, I tested it on Exynos3250 SoC.

Best Regards,
Chanwoo Choi