Re: [PATCH v2 1/3] arm64: dts: fvp: Add system timer for broadcast during CPU idle
From: Liviu Dudau <liviu.dudau@arm.com>
Date: 2025-05-12 16:21:11
Also in:
linux-devicetree
On Fri, May 09, 2025 at 04:46:38PM +0100, Sudeep Holla wrote:
Introduce a system-level timer node in the FVP device tree to act as a broadcast timer when CPUs are in context losing idle states where the local timer stops on entering such low power states. This change complements recent CPU idle state additions. Tested-by: Leo Yan <leo.yan@arm.com> Message-Id: [ref] Signed-off-by: Sudeep Holla <redacted>
For the whole series: Reviewed-by: Liviu Dudau <liviu.dudau@arm.com> Best regards, Liviu
quoted hunk ↗ jump to hunk
--- arch/arm64/boot/dts/arm/fvp-base-revc.dts | 13 +++++++++++++ 1 file changed, 13 insertions(+) v1->v2: - Dropped clock-frequency property - Fixed #size-cell to 1 as expected by the schema - Also update the ranges property and the frame reg propertydiff --git a/arch/arm64/boot/dts/arm/fvp-base-revc.dts b/arch/arm64/boot/dts/arm/fvp-base-revc.dts index 9e10d7a6b5a2..50b5993a2460 100644 --- a/arch/arm64/boot/dts/arm/fvp-base-revc.dts +++ b/arch/arm64/boot/dts/arm/fvp-base-revc.dts@@ -217,6 +217,19 @@ timer { <GIC_PPI 10 IRQ_TYPE_LEVEL_LOW>; }; + timer@2a810000 { + compatible = "arm,armv7-timer-mem"; + reg = <0x0 0x2a810000 0x0 0x10000>; + ranges = <0 0x0 0x2a820000 0x20000>; + #address-cells = <1>; + #size-cells = <1>; + frame@2a830000 { + frame-number = <1>; + interrupts = <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>; + reg = <0x10000 0x10000>; + }; + }; + pmu { compatible = "arm,armv8-pmuv3"; interrupts = <GIC_PPI 7 IRQ_TYPE_LEVEL_HIGH>;-- 2.34.1
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