From: Olof Johansson <olof@lixom.net>
To: Sonny Rao <sonnyrao@chromium.org>
Cc: Heiko Stuebner <heiko@sntech.de>,
linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org,
linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org,
dianders@chromium.org, Rob Herring <robh+dt@kernel.org>,
Pawel Moll <pawel.moll@arm.com>,
Mark Rutland <mark.rutland@arm.com>,
Ian Campbell <ijc+devicetree@hellion.org.uk>,
Kumar Gala <galak@codeaurora.org>,
Russell King <linux@arm.linux.org.uk>,
Kever Yang <kever.yang@rock-chips.com>,
eddie.cai@rock-chips.com
Subject: Re: [PATCH] ARM: dts: rk3288: add arm,cpu-registers-not-fw-configured
Date: Fri, 5 Dec 2014 10:27:25 -0800 [thread overview]
Message-ID: <20141205182725.GA11755@quad.lixom.net> (raw)
In-Reply-To: <1416941640-324-1-git-send-email-sonnyrao@chromium.org>
On Tue, Nov 25, 2014 at 10:54:00AM -0800, Sonny Rao wrote:
> This will enable use of physical arch timers on rk3288, where each
> core comes out of reset with a different virtual offset. Using
> physical timers will help with SMP booting on coreboot and older
> u-boot and should also allow suspend-resume and cpu-hotplug to work on
> all firmwares.
>
> Firmware which does initialize the cpu registers properly at boot and
> cpu-hotplug can remove this property from the device tree.
>
> Signed-off-by: Sonny Rao <sonnyrao@chromium.org>
> ---
> arch/arm/boot/dts/rk3288.dtsi | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/arch/arm/boot/dts/rk3288.dtsi b/arch/arm/boot/dts/rk3288.dtsi
> index 0f50d5d..c861f52 100644
> --- a/arch/arm/boot/dts/rk3288.dtsi
> +++ b/arch/arm/boot/dts/rk3288.dtsi
> @@ -139,6 +139,7 @@
>
> timer {
> compatible = "arm,armv7-timer";
> + arm,cpu-registers-not-fw-configured;
> interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>,
> <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>,
> <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>,
Applied, thanks.
-Olof
prev parent reply other threads:[~2014-12-05 18:27 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-25 18:54 Sonny Rao
2014-12-05 18:27 ` Olof Johansson [this message]
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