[PATCH] arm64: dts: broadcom: bcm2712: Remove non-functional EL2 virtual timer

Florian Fainelli florian.fainelli at broadcom.com
Mon Jul 13 09:15:14 PDT 2026


On 6/19/26 13:48, Daniel Drake wrote:
> Commit d87773de9efe1 ("clocksource/drivers/arm_arch_timer: Default to
> EL2 virtual timer when running VHE") causes boot to hang on
> Raspberry Pi 5. The newly-selected EL2 virtual timer does not generate
> any interrupts, even though the GIC_DIST_ENABLE_SET flag has been
> confirmed set via readback.
> 
> The reasons for this failure are unknown, however it is likely that
> this timer was never tested. Raspberry Pi's original devicetree did
> not include this timer interrupt; it was only introduced via a
> suggestion[1] made in code review as part of the upstreaming process.
> (Current RPi firmware versions do include this timer, but only because
> they rebased on top of the upstreamed devicetree starting with
> Linux 6.12)
> 
> Until more is known about this non-firing timer interrupt, remove
> the devicetree entry to enable RPi5 devices to boot.
> 
> [1] https://lore.kernel.org/all/12363be5b11c752b7155cc0c416fdfd2@kernel.org/
> 
> Reported-by: Marek Szyprowski <m.szyprowski at samsung.com>
> Closes: https://lore.kernel.org/all/ea15cce1-b393-43f6-8d58-3d6f90f0c0cd@samsung.com/
> Signed-off-by: Daniel Drake <dan at reactivated.net>

We know why now: the interrupt line was never connected in the first 
place as this was not identified as being a requirement *sigh*.

Can you amend your patch with that detail, re-submit and add a:

Fixes: faa3381267d0 ("arm64: dts: broadcom: Add minimal support for 
Raspberry Pi 5")

Thank you Daniel!
-- 
Florian



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