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X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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 Closes: https://lore.kernel.org/all/ea15cce1-b393-43f6-8d58-3d6f90f0c0cd@samsung.com/ Signed-off-by: Daniel Drake --- arch/arm64/boot/dts/broadcom/bcm2712.dtsi | 2 -- 1 file changed, 2 deletions(-) diff --git a/arch/arm64/boot/dts/broadcom/bcm2712.dtsi b/arch/arm64/boot/dts/broadcom/bcm2712.dtsi index 761c59d90ffc..09ff5e9959d3 100644 --- a/arch/arm64/boot/dts/broadcom/bcm2712.dtsi +++ b/arch/arm64/boot/dts/broadcom/bcm2712.dtsi @@ -678,8 +678,6 @@ IRQ_TYPE_LEVEL_LOW)>, , , - ; }; -- 2.54.0