From: Sonny Rao <sonnyrao@chromium.org>
To: Heiko Stuebner <heiko@sntech.de>
Cc: linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org,
linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org,
dianders@chromium.org, olof@lixom.net,
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, Sonny Rao <sonnyrao@chromium.org>
Subject: [PATCH] ARM: dts: rk3288: add arm,cpu-registers-not-fw-configured
Date: Tue, 25 Nov 2014 10:54:00 -0800 [thread overview]
Message-ID: <1416941640-324-1-git-send-email-sonnyrao@chromium.org> (raw)
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)>,
--
2.1.2
next reply other threads:[~2014-11-25 18:54 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-25 18:54 Sonny Rao [this message]
[not found] ` <1416941640-324-1-git-send-email-sonnyrao-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>
2014-12-05 18:27 ` [PATCH] ARM: dts: rk3288: add arm,cpu-registers-not-fw-configured Olof Johansson
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