From mboxrd@z Thu Jan 1 00:00:00 1970 From: scott.shu@mediatek.com (Scott Shu) Date: Thu, 18 Jun 2015 11:35:24 +0800 Subject: [PATCH 6/6] ARM: dts: mt6580: enable basic SMP bringup for mt6580 In-Reply-To: <1434598524-43846-1-git-send-email-scott.shu@mediatek.com> References: <1434598524-43846-1-git-send-email-scott.shu@mediatek.com> Message-ID: <1434598524-43846-7-git-send-email-scott.shu@mediatek.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Add arch timer node to enable arch-timer support. MT6580 firmware doesn't correctly setup arch-timer frequency and CNTVOFF, add properties to workaround this. This set cpu enable-method to enable SMP. --- arch/arm/boot/dts/mt6580.dtsi | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/arch/arm/boot/dts/mt6580.dtsi b/arch/arm/boot/dts/mt6580.dtsi index a974830..a7071b38 100644 --- a/arch/arm/boot/dts/mt6580.dtsi +++ b/arch/arm/boot/dts/mt6580.dtsi @@ -23,26 +23,31 @@ cpus { #address-cells = <1>; #size-cells = <0>; + enable-method = "mediatek,mt6580-smp"; cpu at 0 { device_type = "cpu"; compatible = "arm,cortex-a7"; reg = <0x0>; + clock-frequency = <1700000000>; }; cpu at 1 { device_type = "cpu"; compatible = "arm,cortex-a7"; reg = <0x1>; + clock-frequency = <1700000000>; }; cpu at 2 { device_type = "cpu"; compatible = "arm,cortex-a7"; reg = <0x2>; + clock-frequency = <1700000000>; }; cpu at 3 { device_type = "cpu"; compatible = "arm,cortex-a7"; reg = <0x3>; + clock-frequency = <1700000000>; }; }; @@ -72,6 +77,21 @@ }; }; + timer { + compatible = "arm,armv7-timer"; + interrupt-parent = <&gic>; + interrupts = , + , + , + ; + clock-frequency = <13000000>; + arm,cpu-registers-not-fw-configured; + }; + soc { #address-cells = <1>; #size-cells = <1>; -- 1.8.1.1.dirty