From: Nathan Lynch <Nathan_Lynch@mentor.com>
To: Yingjoe Chen <yingjoe.chen@mediatek.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>,
<devicetree@vger.kernel.org>,
Russell King <linux@arm.linux.org.uk>,
<srv_heupstream@mediatek.com>, Arnd Bergmann <arnd@arndb.de>,
Stephen Boyd <sboyd@codeaurora.org>,
<linux-kernel@vger.kernel.org>, Rob Herring <robh+dt@kernel.org>,
<linux-mediatek@lists.infradead.org>,
Sascha Hauer <kernel@pengutronix.de>,
Olof Johansson <olof@lixom.net>,
<linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH v3 4/5] ARM: dts: mt8135: enable basic SMP bringup for mt8135
Date: Tue, 14 Jul 2015 09:19:00 -0500 [thread overview]
Message-ID: <55A51A54.7000208@mentor.com> (raw)
In-Reply-To: <1436851111-2369-5-git-send-email-yingjoe.chen@mediatek.com>
On 07/14/2015 12:18 AM, Yingjoe Chen wrote:
> Add arch timer node to enable arch-timer support. MT8135 firmware
> doesn't correctly setup arch-timer frequency and CNTVOFF, add
> properties to workaround this.
[...]
>
> + timer {
> + compatible = "arm,armv7-timer";
> + interrupt-parent = <&gic>;
> + interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) |
> + IRQ_TYPE_LEVEL_LOW)>,
> + <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(4) |
> + IRQ_TYPE_LEVEL_LOW)>,
> + <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(4) |
> + IRQ_TYPE_LEVEL_LOW)>,
> + <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(4) |
> + IRQ_TYPE_LEVEL_LOW)>;
> + clock-frequency = <13000000>;
> + arm,cpu-registers-not-fw-configured;
It's disappointing to see this property in new DTS submissions. It
prevents taking advantage of the VDSO for gettimeofday/clock_gettime.
WARNING: multiple messages have this Message-ID (diff)
From: Nathan Lynch <Nathan_Lynch@mentor.com>
To: Yingjoe Chen <yingjoe.chen@mediatek.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>,
devicetree@vger.kernel.org, Russell King <linux@arm.linux.org.uk>,
srv_heupstream@mediatek.com, Arnd Bergmann <arnd@arndb.de>,
Stephen Boyd <sboyd@codeaurora.org>,
linux-kernel@vger.kernel.org, Rob Herring <robh+dt@kernel.org>,
linux-mediatek@lists.infradead.org,
Sascha Hauer <kernel@pengutronix.de>,
Olof Johansson <olof@lixom.net>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v3 4/5] ARM: dts: mt8135: enable basic SMP bringup for mt8135
Date: Tue, 14 Jul 2015 09:19:00 -0500 [thread overview]
Message-ID: <55A51A54.7000208@mentor.com> (raw)
In-Reply-To: <1436851111-2369-5-git-send-email-yingjoe.chen@mediatek.com>
On 07/14/2015 12:18 AM, Yingjoe Chen wrote:
> Add arch timer node to enable arch-timer support. MT8135 firmware
> doesn't correctly setup arch-timer frequency and CNTVOFF, add
> properties to workaround this.
[...]
>
> + timer {
> + compatible = "arm,armv7-timer";
> + interrupt-parent = <&gic>;
> + interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) |
> + IRQ_TYPE_LEVEL_LOW)>,
> + <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(4) |
> + IRQ_TYPE_LEVEL_LOW)>,
> + <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(4) |
> + IRQ_TYPE_LEVEL_LOW)>,
> + <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(4) |
> + IRQ_TYPE_LEVEL_LOW)>;
> + clock-frequency = <13000000>;
> + arm,cpu-registers-not-fw-configured;
It's disappointing to see this property in new DTS submissions. It
prevents taking advantage of the VDSO for gettimeofday/clock_gettime.
WARNING: multiple messages have this Message-ID (diff)
From: Nathan_Lynch@mentor.com (Nathan Lynch)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 4/5] ARM: dts: mt8135: enable basic SMP bringup for mt8135
Date: Tue, 14 Jul 2015 09:19:00 -0500 [thread overview]
Message-ID: <55A51A54.7000208@mentor.com> (raw)
In-Reply-To: <1436851111-2369-5-git-send-email-yingjoe.chen@mediatek.com>
On 07/14/2015 12:18 AM, Yingjoe Chen wrote:
> Add arch timer node to enable arch-timer support. MT8135 firmware
> doesn't correctly setup arch-timer frequency and CNTVOFF, add
> properties to workaround this.
[...]
>
> + timer {
> + compatible = "arm,armv7-timer";
> + interrupt-parent = <&gic>;
> + interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) |
> + IRQ_TYPE_LEVEL_LOW)>,
> + <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(4) |
> + IRQ_TYPE_LEVEL_LOW)>,
> + <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(4) |
> + IRQ_TYPE_LEVEL_LOW)>,
> + <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(4) |
> + IRQ_TYPE_LEVEL_LOW)>;
> + clock-frequency = <13000000>;
> + arm,cpu-registers-not-fw-configured;
It's disappointing to see this property in new DTS submissions. It
prevents taking advantage of the VDSO for gettimeofday/clock_gettime.
next prev parent reply other threads:[~2015-07-14 14:19 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-14 5:18 [PATCH v3 0/5] Add SMP bringup support for mt65xx socs Yingjoe Chen
2015-07-14 5:18 ` Yingjoe Chen
2015-07-14 5:18 ` Yingjoe Chen
2015-07-14 5:18 ` [PATCH v3 1/5] ARM: mediatek: enable gpt6 on boot up to make arch timer working Yingjoe Chen
2015-07-14 5:18 ` Yingjoe Chen
2015-07-14 5:18 ` Yingjoe Chen
2015-07-14 5:18 ` [PATCH v3 2/5] devicetree: bindings: add new SMP enable method Mediatek SoC Yingjoe Chen
2015-07-14 5:18 ` Yingjoe Chen
2015-07-14 5:18 ` Yingjoe Chen
2015-07-14 5:18 ` [PATCH v3 3/5] ARM: mediatek: add smp bringup code Yingjoe Chen
2015-07-14 5:18 ` Yingjoe Chen
2015-07-14 5:18 ` Yingjoe Chen
2015-08-05 22:26 ` Russell King - ARM Linux
2015-08-05 22:26 ` Russell King - ARM Linux
2015-08-05 22:26 ` Russell King - ARM Linux
2015-07-14 5:18 ` [PATCH v3 4/5] ARM: dts: mt8135: enable basic SMP bringup for mt8135 Yingjoe Chen
2015-07-14 5:18 ` Yingjoe Chen
2015-07-14 5:18 ` Yingjoe Chen
2015-07-14 14:19 ` Nathan Lynch [this message]
2015-07-14 14:19 ` Nathan Lynch
2015-07-14 14:19 ` Nathan Lynch
2015-07-16 14:44 ` Yingjoe Chen
2015-07-16 14:44 ` Yingjoe Chen
2015-07-16 14:44 ` Yingjoe Chen
2015-07-14 5:18 ` [PATCH v3 5/5] ARM: dts: mt8127: enable basic SMP bringup for mt8127 Yingjoe Chen
2015-07-14 5:18 ` Yingjoe Chen
2015-07-14 5:18 ` Yingjoe Chen
2015-08-05 18:44 ` [PATCH v3 0/5] Add SMP bringup support for mt65xx socs Matthias Brugger
2015-08-05 18:44 ` Matthias Brugger
2015-08-05 18:44 ` Matthias Brugger
2015-08-05 22:31 ` Russell King - ARM Linux
2015-08-05 22:31 ` Russell King - ARM Linux
2015-08-07 10:50 ` Yingjoe Chen
2015-08-07 10:50 ` Yingjoe Chen
2015-08-07 10:50 ` Yingjoe Chen
2015-09-24 15:44 ` Yingjoe Chen
2015-09-24 15:44 ` Yingjoe Chen
2015-09-24 15:44 ` Yingjoe Chen
2015-08-07 17:13 ` Matthias Brugger
2015-08-07 17:13 ` Matthias Brugger
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