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arm64: dts: fvp: Add system timer for broadcast during CPU idle

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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: <20250509154640.836093-1-sudeep.holla@arm.com>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
This commit is contained in:
Sudeep Holla 2025-05-09 16:46:38 +01:00
parent 0af2f6be1b
commit 7556a55b07
1 changed files with 13 additions and 0 deletions
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13
arch/arm64/boot/dts/arm/fvp-base-revc.dts
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@ -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>;